Digital Handheld Optical Power and Energy Meter Console


  • Power and Energy Measurements for Free Space and Fiber Applications
  • Designed for High Accuracy, Reliability, and Ease of Use
  • Over 25 Compatible Sensors

PM100D

Multiple Display
Options

Photodiode, Fiber, Integrating
Sphere, Thermal, and Pyroelectric
Sensors Available

Detector Options

Related Items


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Item # PM100D
Compatible Sensors Photodiode, Thermal, and Pyroelectrica
Optical Power Rangeb 100 pW to 200 W
Optical Energy Rangeb 3 µJ to 15 J
Available Sensor Wavelength Rangeb 185 nm - 25 μm
Max Repetition Rateb 3 kHz
Display Refresh Rate 20 Hz
Bandwidtha DC - 100 kHz
Photodiode Sensor Rangec 50 nA - 5 mA
Thermopile Sensor Rangec 1 mV - 1 V
Pyroelectric Sensor Rangec 100 mV - 100 V
  • The PM400 console is compatible with all Thorlabs' C-Series Pyroelectric Energy Sensors except the ES408C Fast Pyroelectric Energy Sensor.
  • Sensor Dependent
  • Ranges Selectable in Watts (Photodiode and Thermopile) or Joules (Pyroelectric) and is dependent on the sensor used.

Features

  • Handheld Digital Power Meter Console
  • Designed for Coherent and Incoherent Light Source Measurements
  • Power and Energy Measurements for CW and Pulsed Source Detection
  • Advanced Measurement Capabilities
  • Large 4" LCD Display with Multiple Display Options
  • Compatible with Over 25 Sensors (Shown Below)
  • Pre-Installed 8 GB SD Memory Card for Storing and Transferring Data
  • USB 2.0 Interface
  • Long-Life Internal Li-Polymer Battery
  • Sensor Upgrade and Recalibration Services Available
  • Optical Power Monitor PC Software Available (See Software Tab for Details)

The PM100D is the cornerstone of Thorlabs' optical power and energy meter consoles and is the digital counterpart to the PM100A analog power meter console. The console (and sensor, sold separately) is ideal for use as a CW and pulsed source power meter, incoherent optical source power meter, general light power meter, fiber power meter, and more. The display on the PM100D features adjustable brightness settings, with the option to turn off the backlight completely while still being readable.

The PM100D is compatible with more than 25 photodiode, slim photodiode, integrating sphere, fiber, thermal, and pyroelectric sensors designed for use from the UV to the Mid-IR. See the Sensor Selection tab for further information.

This power and energy meter console is also available as a kit, bundled with our most popular sensors. Please visit our power meter kits page for more information. If you have any questions regarding these kits, or would like to suggest other kit options, please contact Tech Support with inquiries.

For a touchscreen version of the PM100D with more advanced spectral correction features, inputs for temperature and humidity sensors, data logging, and additional memory, we offer the PM400 capacitive touchscreen power and energy meter console. We also offer wireless, handheld, self-contained power meters, which feature an ultra-slim sensor with a built-in OLED display as well as Bluetooth® and USB features.

Console Design
The compact housing has a large, 4” backlit display with a resolution of 320 x 240 pixels and illuminated buttons, all of which make operation in dark labs easy. The LCD’s clear GUI offers easy data readouts with an intuitive navigation scheme. Interactive tooltips help to operate the device by giving the user step-by-step operating instructions, displaying the next step on the screen.

The PM100D features four standard measurement screens. The first option is a numeric readout useful for standard power and energy readings. The second option is a tuning needle typically seen on analog devices, however, optimized to run as a digital readout on the display screen. Third is a tuning graph, which is very convenient for fine tuning CW and pulsed sources.

The unit can also be run in a data acquisition mode. Simply start the scan and the unit automatically starts recording data such as current power/energy, minimum, maximum, standard deviation, and other important statistics recorded over the acquisition period. The PM100D also features several user customizable displays and audio tuning for use when the detector is not within visual range. See the Display Screens tab for further information.

Intelligent Sensor Connection
Click to Enlarge

Thorlabs' C-Series Power Meter Sensor Connectors Include the Sensor Calibration Data

Connectivity
The sensor connector, shown to the left, enables "hot swappable" quick sensor exchange. The sensor connectors contain all the sensor information including NIST-traceable responsivity curves, sensor types, and model number.

A slot for an SD memory card (an 8 GB SD card is pre-installed) allows data recording even in stand-alone operation, giving the user large memory storage when recording data in the field or away from a computer in the lab. Data can also be recorded via the USB PC connection and optical power monitor software. This software is capable of handling up to eight consoles simultaneously. The features of the PC control software are highlighted in the Software tab.

In addition to remote control operation and data logging/recording, the USB connection can also act as the charging system for the Li-Polymer battery. Also included is an AC battery charger which uses an intelligent charging management system to improve battery lifetime and reduce battery memory effects.

Recalibration Service
Recalibration services are available for our thermal and photodiode power sensors, pyroelectric energy sensors, and consoles. We recommend your Thorlabs sensor and console be recalibrated as a pair; however, each may be recalibrated individually. To order this service for your sensor or console, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor or console. Recalibration of a single-channel console is included with the recalibration of a sensor at no additional cost.

Sensor Upgrade Service
Thorlabs' current line of C-Series sensors and power meter consoles are not compatible with old power meter consoles and sensor heads, respectively. We offer a sensor upgrade service if you want to use your existing sensors with a new power meter console. Note: upgraded sensors will be incompatible with old power meter consoles and new sensors converted to work with older consoles will not be compatible with the PM100D. Please contact our Tech Support team for details.

Item # PM100D
Display
Display Type Graphical LCD 320 x 240 pixels, LED Backlight
Display Screens Numerical, Bar Graph, Line Graph, Statistics, Simulated Analog Needle
Viewing Area 81.4 mm x 61.0 mm
(3.20" x 2.40")
Refresh Rate 20 Hz
Audio 1x Speaker
Sensor Interface
Compatible Sensors All Photodiodes, Thermopiles, and Pyrosa
See Below for Full Sensor Specs
Time Constant Correction <1 s
AD Converter 16 bit
Trigger (Pulse Measurements, Pyroelectric Sensors) Adjustable, 0.1 - 100%
Connector DB9F, Left Side
Sensor Temperature Control Thermistor
Temperature Range -10 to 80 °C
Analog Outputs
Signal Amplified Input Signal (Not Corrected)
Voltage Range 0 to 2 V
Accuracy ±3%
Bandwidth Up to 100 kHz, Dependent on Sensor and Settings
Connector SMA, Left Side
Digital Outputs
Memory 8 GB Removable SD Card
Connector / Interface Mini USB / USB 2.0
Power
Battery Li-Polymer, 3.7 V, 1300 mAh
Charger / DC Input 5 V / 1 A
Dimensions and Mounting
Dimensions (L x W x H) 180 mm x 105 mm x 38 mm
(7.09" x 4.13" x 1.50")
Weight <0.5 kg (<1.1 lb)
Mounting Options Kickstand; 1/4"-20 Post Thread
Operating Temperature 0 to 40 °C
Storage Temperature -40 to 70 °C
  • Except the ES408C Fast Pyroelectric Energy Sensor

Sensor Compatibility Specs

Item # PM100D
Detector Compatibility Photodiode Sensors: S1xxC Series
Photodiodes (Max 5 mA)
Thermal Sensors: S3xxC Series
Thermopiles (Max 1 V)
Pyroelectric Sensors: ESxxxC Series
Pyros (Max 100 V)a
Measurement Ranges 6 Decades; 50 nA - 5 mA
Ranges Selectable in W or A,
Sensor Dependent
4 Decades; 1 mV - 1 V
Ranges Selectable in W or V,
Sensor Dependent
4 Decades; 100 mV - 100 V
Ranges Selectable in J or V,
Sensor Dependent
Wavelength Ranges 200 nm - 1800 nm (Sensor Dependent) 190 nm - 25 μm (Sensor Dependent) 185 nm - 25 μm (Sensor Dependent)
Power / Energy Ranges 100 pW - 20 W 100 μW - 200 W 10 μJ - 15 J
Units W, dBm, W/cm2, A W, dBm, W/cm2, V J, J/cm2, W, W/cm2, V
Accuracy ±0.2% of Full Scale (5 µA - 5 mA)
±0.5% of Full Scale (50 - 500 nA)
±0.5% of Full Scale (10 mV - 1 V)
±1% of Full Scale (1 mV)
±0.5% of Full Scale (100 mV - 100 V)
Display Resolution 1 pA / Responsivity Value (A/W) 1 µV / Responsivity Value (V/W) 100 µV / Responsivity Value (V/J)
Bandwidth DC - 100 kHz, Dependent on Sensor and Settings DC - 10 Hz, Dependent on Sensor and Settings N/A
Max Repetition Rate N/A N/A 3 kHz
Wavelength Correction Sensor Dependent; nm (A/W) Sensor Dependent; nm, (V/W) Sensor Dependent; nm, (V/J)
  • As this interface can only support sensors with repetition rates up to 3 kHz, it should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.

For a full list of the sensor head specifications please visit the Photodiode Power Sensors, Thermal Power Sensors, or Pyroelectric Energy Sensors pages. For other information, please contact Tech Support.

Features

  • Header line with sensor information, date/time and battery state
  • Status line with warning annunciators Bar graph and configurable left and right sub display areas to display a minimum and a maximum value or a ratio of both values (numerical screen only)
  • Tool tip text above the menu
  • Easily accessible menu soft buttons
GUI Overview

On the top bar, the sensor, date and time, and battery life indicator are shown.

The main window contains one of the six standard display views described below. Here, the numerical readout is shown along with min and max values.

Below the main window is a bar graph displaying relative and absolute changes in power and energy.

The bottom bar on the PM100D contains the eight menus controlled by the D-pad.

PM100D Numeric Display

These menus at the bottom of the display access all the standard and customizable displays on the PM100D. The text display above the sub menus provides further assistance in navigating these menus.

Power and energy range, wavelength, measurement configuration, units, audio tuning, measurement views, and the system menu are all accessible from this bottom menu.

The bottom menu also allows customization of the display screen to include frequency, power density, and min and max values.

Numeric Screen (Power Mode) Statistics Screen (Power Mode)

PM100D Numeric Display

This display combines a clear numerical 4-digit read out of the optical power, a bar-graph function with zooming capabilities, and configurable sub displays.

PM100D Numeric Display

The statistics display shows the actual, minimum, maximum and mean power values in linear and logarithmic representation; further the standard deviation, the max/min ratio, the number of samples and the elapsed time.
Trend Graph (Power Mode) Needle Tuning (Power Mode)

PM100D Trend Graph Display

For laser tuning and beam alignment to visualize changes and trends together with an additional 4-digit numerical value of the absolute power.

PM100D Needle Display

A display imitating an analog needle together with an additional 4-digit numerical value for laser tuning tasks. A special feature is a resettable max hold indicator and a shiftable tuning sound.
Pulsed Numeric Screen (Energy Mode) Pulsed Statistics Screen (Energy Mode)

PM100D Pulsed Numeric Display

This display combines a clear numerical 4-digit read out of the optical energy, a bar-graph function with zooming capabilities, and configurable sub displays.

PM100D Pulsed Statistics Display

The statistics display shows the actual, minimum, maximum and mean energy values in linear and logarithmic representation; further the standard deviation, the max/min ratio, the number of samples and the elapsed time.
Pulse Bar Graph (Energy Mode)  

PM100D Pulse Chart Display

Like the Trend Graph (Power Mode) this easily shows changes and trends together with an additional 4-digit numerical value of the absolute energy of incident beam pulses.

The user can customize the display screen by selecting various measurement tasks to be shown on the screen. Some screens are partly configurable by the user, for example, the user can display the min and max values within a certain time period or enable visual and audible peak indicator as a tuning aid. The display on the PM100D features adjustable brightness settings, with the option to turn off the backlight completely while still being readable.

PM100D Sensor Connectors

D-type Female

DB9 Female

PinConnection
1+5 V (Drive max 50 mA from this pin)
2EEPROM Digital I/O
3Photodiode Ground (Anode), Thermal and Pyro Sensor Ground, Analog Ground
4Photodiode Cathode
5Pyro-Electric Sensor +
6DGND
7PRESENT (Connect this pin via a 1kΩ - 10kΩ resistor to Pin 3 (AGND))
8Thermal Sensor +
9N.C.

 

Analog Output

SMA Female

 

SMA Female

0 ... 2 V

Computer Connection

USB Type Mini-B

USB Type Mini B

USB Type Mini-B to Type A Cable Included

Standard Photodiode Sensor Mounting Options

The compact design of Thorlabs' Standard Photodiode Sensors allows easy integration into existing setups. Typical mounting configurations including post, cage, and lens tube options are available. Shown on this page are several different choices for mounting these sensors.

The Standard Photodiode Sensors are compatible with all S120-xx series fiber adapters. FC/PC and SMA adapters are shown on the right. Adapters for FC/APC, SC, LC, and ST connections are also available.

Flip mounts are convenient for quick power measurements from a static location. The sensor can be placed in the path of the laser beam for the power measurement and flipped down during normal operation of the system.

FM90(/M) Right-Angle Flip Mounts are shown to the right. Thorlabs also offers the TRB1(/M) Articulating Post Mount. The lockable articulating mount offers almost unlimited positioning of the sensor head.

The Standard Photodiode Sensors also feature externally SM1-threaded connections on the front face. The SM1 threading provides easy mounting to 1" lens tube systems and quick-release mounts.

Shown to the right are the KB1P(/M) Quick-Release Post Mount and QRC1A Quick-Release 30 mm Cage Mount. Both mounts feature SM1-threaded connections to the sensor heads.

Note: Due to the thickness of the S12xC sensor, the QRC1A and CP44F (shown below) quick-release mounts can only be fully removed from the cage system by backing them off an open end. The two mounts are easily removed from the cage system if only three cage rods are used. See the picture on the right.

Thorlabs also offers the CP44F 30 mm Cage Plates with Quick-Release Mounts. These mounts feature magnetically coupled front and back plates for easy and repeatable mounting.

Note: Like the QRC1A, the CP44F cannot be removed from a closed cage system.

Slim Photodiode Sensor Mounting Options

Thorlabs' Slim Photodiode Sensors are designed to fit into space-restricted environments such as 30 mm cage systems and optic-dense free-space arrangements.

Shown to the right is a S130C Sensor inserted into a 30 mm cage system. The application shown highlights the ease with which the sensor can be inserted into the cage, and the minimal space needed to take a power measurement.

The Slim Photodiode Sensors may also be mounted on a TRB1(/M) Articulating Mount. This mount allows repeatable insertion of the sensor into tight optic arrangements. After the measurement is made, the sensor may be rotated out of the beam path for normal operation.

Compact Slim Photodiode Sensor Mounting Options

Thorlabs' Compact Slim Photodiode Sensors are designed to fit into even tighter spaces such as 16 mm cage systems, our slotted Ø1/2" lens tubes, and other optic-dense free-space arrangements.

Shown to the right is an S116C Sensor inserted into a 16 mm cage system. The application shown highlights the ease with which the sensor can be inserted into the cage, and the minimal space needed to take a power measurement.

The compact slim photodiode sensor has two 8-32 (M4) taps for post mounting. One tap mounts the sensor horizontally, as seen to the right, and one allows it to be mounted vertically. The sensor may also be mounted on a TRB1(/M) Articulating Mount. This mount allows repeatable insertion of the sensor into tight optic arrangements. After the measurement is made, the sensor may be rotated out of the beam path for normal operation.

Microscope Slide Photodiode Sensor Mounting Options

S170C Post Mounted with RA90
S170C Mounted on a Post

The S170C may be post mounted via the 8-32 (M4) tap in the side of the housing.

The S170C Microscope Slide Power Sensor is designed so that it can be mounted directly in a microscope slide holder. The 76.0 mm x 25.2 mm x 5.0 mm sensor head has the same footprint as a standard microscope slide and is compatible with most standard upright and inverted microscopes. The photo to the right shows the power sensor flipped over so that the engraved back of the housing can be used for alignment.

This power sensor also has an 8-32 (M4) tap for post mounting. In the photo to the far right, an RA90(/M) is used with two Ø1/2" posts to mount the sensor head in a horizontal orientation.

Integrating Sphere Photodiode Sensor Mounting Options

Thorlabs' Integrating Sphere Photodiode Sensor provides a low-loss cavity for diverging, non-uniform, or off-axis beam measurements. These integrating spheres are ideal for all fiber-based applications due to the beam divergence at the end of the fiber.

Shown to the right is an S140C Integrating Sphere with S120-FC Fiber Adapter. Also shown is an S140C with an S140-BFA Bare Fiber Adapter. The Bare Fiber Adapter features a mounting clamp and light shield to decrease interference from ambient light.

Compact Fiber Photodiode Sensor Mounting Options

Thorlabs' Compact Fiber Photodiodes are the ideal choice for a portable, fiber-coupled power meter. The S15xC sensors are compatible with a wide variety of fiber connections. PM20-xx adapters are available to couple FC, APC, SMA, ST, SC, and LC connectors with the sensors. Shown to the right is an S150C Sensor with FC and SMA connector adapters.

Shown to the far right is a PM100D console with S150C sensor connected to a FC connectorized optical fiber. This setup is ideal for portable use in the lab or in the field.

Pyroelectric Energy Sensor Mounting Options

Thorlabs' Pyroelectric Energy Sensors are ideal for measuring pulsed sources. These pyroelectric sensors provide direct energy readings for those sources. The sensors are designed to handle medium- to high-energy pulses from excimer, YAG, and other high-power lasers.

Each sensor ships with an insulating adapter for Ø1/2" post mounting, and they are also compatible with our 30 mm cage system, as shown to the right.

Compatible Power Meters

  • Consoles:
    • PM100A Analog Power and Energy Meter Console
    • PM100D Digital Power and Energy Meter Console
    • PM400 Capacitive Touchscreen Power and Energy Meter Console
    • PM5020 Dual-Channel Benchtop Optical Power and Energy Meter Console (Version 4.0 or Later)
  • Complete Power Meters:
    • PM160, PM160T, and PM160T-HP Wireless Handheld Power Meters with Bluetooth® Technology
    • PM16 Series Compact USB Power Meters
  • Interfaces:
    • PM101 Series Power Meter Interfaces with External Readout (Version 2.0 or Later)
    • PM102 Series Power Meter Interfaces with External Readout (Version 2.1 or Later)
    • PM103 Series Power Meter Interfaces with External Readout (Version 3.0 or Later)
    • PM100USB USB Interface Digital Power and Energy Meter

Optical Power Monitor

The Optical Power Monitor GUI software features power measurement, readout from up to eight power meters, and remote wireless operation.

For details on specific software features, please see the user manual.

Users interested in the legacy Power Meter Software can find it by visiting the software page.

The PM101 Series Power Meters are only compatible with version 2.0 or later. The PM102 Series Power Meters are only compatible with version 2.1 or later. The PM103 Series Power and Energy Meters are only compatible with version 3.0 or later. The PM5020 Console is only compatible with version 4.0 or later.

Software Download

Optical Power Monitor GUI Software for Touchscreen, Handheld, and USB-Interface Power Meters

Features

  • Operate up to Eight Power Meters Simultaneously
  • Record and Analyze Measurements in Real Time
  • Intuitive Analog Display and Graphing Modes
  • Configurable Long-Term Data Logging
  • Also Supports Position Measurements with Thermal Position & Power Sensors
  • Compatible with USB and Bluetooth® Connections

The Optical Power Monitor software GUI enables seamless control of up to eight power meters that are connected via USB, RS232, or Bluetooth® wireless technologya. The latest software, firmware, drivers, and utilities for these power meters can be downloaded here.

Multiple data measurement and analysis functions are integrated into the GUI package. The interface offers a user-friendly design with minimal use of color and low brightness that is ideal use in dark lab environments while wearing laser safety glasses. Measured data can be displayed in real time as a simulated analog needle, digital values, line graph, or bar graph. Continuously logged and short-term measurements can be recorded for data viewing and analysis at a later point. A built-in statistics mode analyzes measured data and continuously updates to reflect new measurements within the pre-determined measurement period. Beam position measurements are also supported when used with our thermal position & power sensors.

The Optical Power Monitor software package installs the GUI, which then can be used to control the touchscreen, handheld, or USB-interface power meters. Firmware updates for supported power meters are also available. Programming examples and drivers for interfacing with our power and energy meter consoles using LabVIEW, C/C++, Visual C#, and Python are installed with the software; refer to the manual for details.

Please note that the Optical Power Monitor Software uses different drivers than the Power Meter Utilities Software and Thorlabs recommends using the new driver TLPM.dll. For users who wish to use the legacy Power Meter Software or use custom software designed using the older PM100D.dll driver, a Power Meter Driver Switcher program is included for easy swapping of the installed driver between the two versions.

a. The PM160, PM160T, and PM160T-HP power meters are equipped with Bluetooth® connections.

Optical Power Meter Utility
Click to Enlarge

Power Measurement Mode: Set up and configure up to eight power meters.
Optical Power Meter Utility
Click to Enlarge

Power Tuning Mode: Simulated analog needle and digital measurement value provided. Delta Mode, enabled above, shows the fluctuation range during the measurement period.
Optical Power Meter Utility
Click to Enlarge

Power Statistics Mode: Calculate numerical statistics for a pre-determined measurement period. The panel displays the analyzed values in a bar graph and the results as numerical values.
Optical Power Meter Utility
Click to Enlarge

Position Tuning Mode: Tuning mode can be used with a thermal position & power sensor to aid in beam alignment.
Optical Power Meter Utility
Click to Enlarge

Position Statistics Mode: Statistics mode also provides aggregate information for thermal position & power sensors.
Optical Power Meter Utility
Click to Enlarge

Data Logging: Enable long-term measurement and simultaneous recording from up to eight power meters. Save data as .csv files for later processing while measurement results are displayed in a graph in real time.
Handheld Power Meter with iPad
Click to Enlarge

The PM160 wireless power meter, shown here with an iPad mini (not included), can be remotely operated using Apple mobile devices.

This tab outlines the full selection of Thorlabs' power and energy sensors. Refer to the lower right table for power meter console and interface compatibility information.

In addition to the power and energy sensors listed below, Thorlabs also offers all-in-one, wireless, handheld power meters and compact USB power meter interfaces that contain either a photodiode or a thermal sensor, as well as power meter bundles that include a console, sensor head, and post mounting accessories.

Thorlabs offers four types of sensors:

  • Photodiode Sensors: These sensors are designed for power measurements of monochromatic or near-monochromatic sources, as they have a wavelength dependent responsivity. These sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current.
  • Thermal Sensors: Constructed from material with a relatively flat response function across a wide range of wavelengths, these thermopile sensors are suitable for power measurements of broadband sources such as LEDs and SLDs. Thermal sensors deliver a voltage proportional to the input optical power.
  • Thermal Position & Power Sensors: These sensors incorporate four thermopiles arranged as quadrants of a square. By comparing the voltage output from each quadrant, the unit calculates the beam's position.
  • Pyroelectric Energy Sensors: Our pyroelectric sensors produce an output voltage through the pyroelectric effect and are suitable for measuring pulsed sources, with a repetition rate limited by the time constant of the detector. These sensors will output a peak voltage proportional to the incident pulse energy.
Console Compatibility
Console Item # PM100A PM100D PM400 PM5020 PM101
Series
PM102
Series
PM103
Series
PM100USB
Photodiode Power -
Thermal Power -
Thermal Position - - - - -
Pyroelectric Energy - a a - - a
  • As the PM100D and PM400 consoles and the PM100USB interface can only support repetition rates of up to 3 kHz, they should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.

Power and Energy Sensor Selection Guide

There are two options for comparing the specifications of our Power and Energy Sensors. The expandable table below sorts our sensors by type (e.g., photodiode, thermal, or pyroelectric) and provides key specifications.

Alternatively, the selection guide graphic further below arranges our entire selection of photodiode and thermal power sensors by wavelength (left) or optical power range (right). Each box contains the item # and specified range of the sensor. These graphs allow for easy identification of the sensor heads available for a specific wavelength or power range.

Photodiode Power Sensors
Thermal Power Sensors
Thermal Position & Power Sensors
Pyroelectric Energy Sensors
  • The response time of the photodiode sensor. The actual response time of a power meter using these sensors will be limited by the update rate of your power meter console.
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s) when the natual response time is approximately 1 s or greater. As the natural response times of the S415C, S425C, and S425C-L are fast, these do not benefit from accelerated measurements and this function cannot be enabled. For more information, see the Operation tab here.
  • With intermittent use: maximum exposure time of 20 minutes for the S401C, otherwise maximum exposure time is 2 minutes.
  • All pyroelectric sensors have a thermal time constant, τ. This value indicates how long it takes the sensor to recover from a single pulse. To detect the correct energy levels, pulses must be shorter than 0.1τ and the repetition rate of your source must be well below 1/τ. Please see the Specs tab here for the τ value of each sensor.

Sensor Options
(Arranged by Wavelength Range)

Sensors by Wavelength

Sensor Options
(Arranged by Power Range)

Sensors by Power

Sensor Key


Posted Comments:
user  (posted 2024-02-05 07:47:19.54)
I use PM100D and an S122C head to measure light intensity spectra at the monochromator output. The system is controlled by a program written in LabView. The light intensity is modulated by the chopper in the range of 10Hz -300Hz. When I work in auto range mode and the light intensity increases monotonically, at some point the measured light intensity decreases. This appears when the measured value is close to the maximum value of the range. I did an experiment at one wavelength W=950nm. When I set the range to 1.5mW I got an optical power of 0.253 mW. After changing to auto range I received the same P=0.253 mW. When I set the ranhe to150 mW I got 109.5 uW, after changing to auto range the same 109.5 uW. I set the Range to 13 uW and received HIGH, and after changing to auto range it was 109.5 uW. Why doesn't the meter switch to a higher range? Thank you.
dpossin  (posted 2024-02-07 08:33:40.0)
Dear customer, Thank you for your feedback. I´ll reach out to you in order to provide assistance.
Genshiro Sunagawa  (posted 2023-12-30 15:59:38.75)
I am using PM100D + S150C to detect the light from LED M385F1. When I try to set the wavelength of PM100D to 380 nm, it says, "The adjusted wavelength is outside the sensors wavelength range". Indeed, the sensor info page displays that S150C's wavelength range is 400nm-1100nm, which does not match the spec of S150C. How can I set the wavelength to below 400nm? Thank you.
dpossin  (posted 2024-01-02 09:17:07.0)
Dear Genshiro, Thank you for your feedback. This sounds like a malfunction since the sensor is specified to be sensitive down to 350nm. I am reaching out to you in order to provide more detailed assistance.
敏洁 李  (posted 2023-12-30 12:00:44.03)
充电时,充电接口位置有烧糊的味道,且电量显示位置显示箭头,这是什么原因导致的?应该怎么维修处理?
hkarpenko  (posted 2024-01-03 06:22:53.0)
Dear customer, thank you for your feedback. It seems that the console is in need of repair. Thus we will directly contact you to guide you through our RMA process.
user  (posted 2023-12-27 18:48:14.04)
Hi, I use PM100D and S121C to measure laser power at around 80 uW. I use OPM software to control and record data. The recording frequency is around 200 datas per second. BUT the data oscillates up and down at around 100Hz over a 3uW range. Is there an explanation?
dpossin  (posted 2024-01-02 09:45:57.0)
Dear customer, Thank you for your feedback. I reach out to you in order to provide assistance.
Chia-Lun Tsai  (posted 2023-12-21 18:02:54.823)
We have got voltage values, and we want to chane voltage to power. Is there a table for voltage to power?
dpossin  (posted 2023-12-27 08:00:40.0)
Dear Chia-Lun, Thank you for your inquiry. I reach out to you directly in order to clarify your questions.
Peng Zhao  (posted 2023-12-06 09:57:40.94)
Hi, i have PM100D power meter and S130C detector, both seems have a problem, PM100D always display 0 and zero! warning, S130C detector can't be recognized by the power meter. can you fix them? please give a RMA number thank you
hkarpenko  (posted 2023-12-07 10:27:45.0)
Dear customer, thank you for your feedback. These errors indicate, that either the console or the sensor are in need of a repair. I will contact you directly to discuss this further with you in detail.
Sam Chen  (posted 2023-10-10 11:19:21.28)
When I use PM100D&S150C to detect the LED power of nW level, the measurement View is set to Numeric, but the display only shows one digit after the decimal point. like 0.7nW. How do I set it to display more valid digits at the Numeric view?
jweimar  (posted 2023-10-16 07:07:02.0)
Thank you for your feedback! Unfortunately, the 4 digits of PM100D display are not configurable. The highest resolution is 100pW. If you need a higher resolution, you can connect the device to your computer and use the “OPM” Software or use the statistics screen in the device.
Jean-Jacques HONORINE  (posted 2023-10-02 09:22:23.07)
Dear, My OS: Windows 2020. My Labviews version: Lab 2014. dfu file: PM100D_V2.8.1.dfu I can't install "PM100D_V2.8.1.dfu", it's normal? Message: No devices found. Verify if device is connected or if you select the right.dfu file.
GBoedecker  (posted 2023-10-05 06:20:38.0)
Thank you for your feedback! Please check the current firmware version. If you already have version 2.8.1, you can get this error message.
GBoedecker  (posted 2023-10-05 10:32:57.0)
Choose "Enable" on the console in System Menu\Console Settings\Firmware Update\ to enable the firmware update.
user  (posted 2023-08-21 01:18:16.437)
Where can i find the driver of this instrument? I have downloaded the software given above, but its not working. I would be extremely grateful if you could provide me a direct link of the driver . I have to connect it to LabView program and do my project! Thank you!
hkarpenko  (posted 2023-08-21 11:18:55.0)
Dear customer, thank you for your feedback. If you are looking for the software of the PM320E, you might have downloaded the wrong software. I will contact you directly and share the correct software with you.
Ben Sauer  (posted 2023-06-01 13:33:42.077)
We have several PM100's in out lab. They have a common failure mode which could be improved by a design change. The problem is that the d-sub 9 connector for the sensor is a surface mount connector. When someone drops the meter the sensor connector tends to break the SMT bonds to the main circuit board. Sometimes this is repairable and sometimes it isn't. In your next design iteration you should change this connector to a through hole one, which would be much more robust. Do you sell the main pcb for this as a replacement part? It's model number is M0094-222-800.
hchow  (posted 2023-06-01 11:20:45.0)
Dear Ben, thank you for your feedback. We do take interest in what our customers have to say about our products. And any feedback you can provide us is valuable. As for the second part of your question, I will personally reach out to you to provide a solution. Thank you.
wang jing  (posted 2023-05-22 18:51:23.067)
请问功率计如果想要测试一个波段范围内的平均功率应该怎么设置?可以测多个波长的激光平均功率吗?
hchow  (posted 2023-05-24 05:36:57.0)
Dear Wang Jing, thank you for your feedback. If you would like to measure the optical power of multiple wavelengths, you would have to set the wavelength setting on the PM100D each time to the preferred wavelength you want to measure. The PM100D is not able to measure the optical power from multiple wavelengths at a time. I will personally reach out to you to provide more information. Thank you.
Taeho Woo  (posted 2023-03-22 22:55:07.36)
Hi Would it be possible for me to ask a question? I was wondering if you could provide me with some information about the temperature levels that the equipment recognizes when it is subjected to different power inputs, specifically 1mW, 2mW, and 3mW. Additionally, would it be possible for me to request a graph that shows the relationship between temperature and power? I would greatly appreciate any assistance you can offer. Thank you very much.
dpossin  (posted 2023-03-28 05:35:38.0)
Dear Taeho Woo, Thank you for your feedback. I am reaching out to you directly to discuss this in more detail.
Carlo Ferrari  (posted 2022-11-27 23:23:11.867)
Hello, I would like to purchase a replacement power cable for this device. I wasn't able to find it anywhere on the product page or the site. Can you send me a quote, pleae. Best regards, Carlo
fmortaheb  (posted 2022-11-28 04:47:14.0)
Thank you very much for contacting Thorlabs! We will reach out to you directly and provide you with a quote.
Karl Ahrendsen  (posted 2022-10-05 11:44:14.31)
Where can I purchase a replacement power cable for this device? I wasn't able to find it anywhere on the product page or the site.
fmortaheb  (posted 2022-10-06 05:24:27.0)
Thank you very much for contacting us. We will contact you directly to provide you with a quote for the power supply.
Igor Musevic  (posted 2022-09-20 12:34:34.29)
Hello, We have PM100D Power meter with S121C, S120C and S470C sensors. We would like to measure the single pulse energy from a 120 fs tunable laser ORIGAMI XP. The repetition rate of this laser can be adjusted from 1 Hz up to 100 kHz. The idea is to measure the average power and divide it by the rate of pulses. In the manual, there is little information on the frequency range of PM100D. It is only mentioned that it can measure average power of pulsed lasers up to 100 kHz. Could you please advise us on the optimum repetition rates of our laser to best suit frequency range of PM100D. What setting of PM100D should be used with that selected repetition rate? Thank You Igor Musevic, Head of the Lab.
hkarpenko  (posted 2022-09-22 05:09:24.0)
Dear Igor, thank you very much for your feedback. For these short pulses it´s better to use the thermal based sensor instead of the photodiode one. I will contact you directly to discuss this case further with you.
Laurent Mercadier  (posted 2022-09-09 08:39:37.977)
Dear Thorlabs, I am regularly using a PM100D for laser power measurement. While it works well, I would like to suggest an improvement: Changing the role of the wavelength button to the role of zeroing. The reason is that when measuring a laser power, the wavelength is set and there is no need for a convenience button, however we often need to calibrate the detector to zero, especially with low powers. In statistics mode, the only way to do it is to break from statistics to numeric, then navigate another menu to finally be able to press zero. Then, we need to navigate back to statistics, which is tedious and time consuming. Would it be possible to consider this for a firmware update and exchange the role of the wavelength button to zeroing button? Thanks in advance, Dr. Laurent Mercadier
fmortaheb  (posted 2022-09-12 10:38:31.0)
Thank you very much for your feedback. We don't have any plan to modify the front panel in the near future, but we will consider your suggestions. Concerning the zeroing, it should be possible to do it without switching between the screens. I'll reach out to you directly to discuss it further.
Davide Michele Stefano Marcolongo  (posted 2022-05-12 15:16:21.29)
Recently, I used a PM100D Console equipped with a S120VC sensor to try the measure of output power of an old short-arc Xe lamp (150 W nominal electrical power) and of some commercial indoor light white LED sources. The console+sensor are not my property, but I found that all the measured sources have an emission output extremely shifted into the UV region and emit quite no power in long visible wavelenght range (red). The same was found with a red LED commercial pointer. Should I consider the instrument is out of calibration? Thanks in advance Dr. Davide M.S. Marcolongo
mdiekmann  (posted 2022-05-17 03:05:51.0)
Thank you for contacting us! We will email you directly to troubleshoot this application. Possible issues in this case could be setting the right measurement wavelength given the broad spectrum of the light sources and the angle of incidence. If the unit has not been calibrated recently, that could also cause incorrect readings.
Xu Yan  (posted 2022-04-20 02:07:18.4)
Hello I'm having Error 0x000000B9 "Timeout during SD-card communication". There is any possible solution to this?
fmortaheb  (posted 2022-04-25 12:13:57.0)
Dear Xu Yan, Thank you very much for your feedback. I'll contact you directly for troubleshooting.
李 彥澄  (posted 2022-03-01 02:50:35.907)
when I used c# to get the laser(senter wavelength :1024nm)power by PM100D,c# may get wrong power value.especially after I use this driver:(https://www.newport.com/p/8742) 8742motion controller to move pezio mirrors,the mirrors move every 0.1 second,mirrors moving will chenge the power of laser.after moving,c# usually get wrong power from PM100D,for example,I saw the PM100D show power is 100mW,but c# get 50mW. What can I do to get the currect power by c#?whith is the real power?power witch PM100D showed or power witch readed by c#? is it possible to let power showed by PM100D and power readed by c# alway be the same,at any time? thank for you reply.
wskopalik  (posted 2022-03-02 03:55:15.0)
Thank you for your feedback! The power values shown on the PM100D and in C# are the same if the same settings are used. The most important setting is usually the wavelength. You can use the “setWavelength” function to adjust the wavelength in C#. If you e.g. use an attenuation setting or a particular power range on the PM100D, these settings would need to be made in C# as well to get the same results. I will contact you directly to provide further assistance.
Carlos Reyes  (posted 2022-02-07 12:24:34.873)
Hello, I have recently bought a PM100D. I downloaded the most recent sw and I was able to connect to it using the application. When trying to control the power meter using LabView the Visa Driver is not recognized. The device appears in the device monitor but not in Ni-Max. I tried installing the legacy versions and still was unable to make a successful connection. I'm currently using LabView 21.0. Could you reach for further support?
wskopalik  (posted 2022-02-10 03:16:25.0)
Thank you for your feedback! There are two different drivers available for the PM100D. The older PM100D driver was using the NI-VISA interface. The new TLPM driver is no longer using this interface. They can however both be used in LabView by using the provided VIs. You can use the “Power Meter Driver Switcher” tool which is installed with the “Optical Power Monitor” software to switch between the two drivers. This can e.g. be helpful if you already have an application which is using the older driver. I will contact you directly to provide further assistance.
Patrick Schmidt  (posted 2022-01-04 18:29:34.687)
I have a PM100D and S175C for power measurement. I would like to collect and log data in Python on a windows PC, do you have a clean way to do this? Thanks.
GBoedecker  (posted 2022-01-07 10:53:33.0)
Dear Patrick, thank you for your inquiry. We provide a Python wrapper for the instrument driver. After installation of the software, you find the wrapper, the manual and a Python example in the folders documented in chapter 9 of the software manual. https://www.thorlabs.com/software/MUC/OPM/v3.0/TL_OPM_V3.0_web-secured.pdf
Borislav Glebov  (posted 2021-10-21 11:53:34.85)
Hello. A few years ago I used the PM100-D device and a very old version of the Optical Power Monitor. The software had a feature - the number of recorded points is no more than 3000. Therefore, at high time resolution, it could record data for no more than 30 seconds. Now we can use Optical Power Monitor v3.1 for PM100-D, and there is no parameter "number of recorded points" in it, but the "resolution" tab remains. Does this mean that the limit on the number of recorded points at any resolution has now been removed for PM100-D and is limited only by the free space of the PC RAM? In other words, is it now possible to record data from PM100-D for several hours with a resolution of 0.01 seconds?
dpossin  (posted 2021-10-27 12:18:51.0)
Dear Borislav, Thank you for your feedback. Its right, that there is no limitation regarding the maximum number of data points. However the data acquisition rate is fixed to 300ms and can´t be changed. The values are then saved to the included SD card which allows recording duration of several hours. I am reaching out to you in order to discuss this matter more detailed.
dpossin  (posted 2021-10-27 12:18:51.0)
Dear Borislav, Thank you for your feedback. Its right, that there is no limitation regarding the maximum number of data points. However the data acquisition rate is fixed to 300ms and can´t be changed. The values are then saved to the included SD card which allows recording duration of several hours. I am reaching out to you in order to discuss this matter more detailed.
Mike Sym  (posted 2021-10-20 08:15:14.197)
Hello, regarding the measurement range, the manual states that the measurement will be precise within -10% to 110% of the selected range. If the range is set to eg. 10mW, this means that the values are precise within the [9,11] mW range, right? Can the measurement range be set manually in some arbitrary value within the range of the sensor? To better explain my question, I am monitoring the power-meter output from the analog interface, however when the power reaches ~12mW, the range is increased by a factor of "10" and the output get very noisy (as it lies now close to the "0" level). So, I would like to set the range at about 20mW. Thanks!
dpossin  (posted 2021-10-26 03:57:34.0)
Dear Mike, Thank you for your feedback. The autoranging can be disabled but the range limits can´t be changed as they are determined by the current measurement bridge on the hardware. I am reaching out to you to provide further information.
Mike Sym  (posted 2021-10-15 14:51:22.13)
Hello, is there a way to control the power meter or extract the CSV files using a Linux distribution? That would be really helpful.
dpossin  (posted 2021-10-25 10:22:55.0)
Dear Mike, Thank you for your feedback. Well we also provide a Linux (Ubuntu) version of our optical power monitor software on request. I am reaching out in order to provide it to you.
Vad Kir  (posted 2021-06-30 05:13:52.687)
Hello I'm having Error 0x000000BE "Invalid directory name". There is any possible solution to this?
MKiess  (posted 2021-07-05 08:31:25.0)
Dear Vad, Thank you very much for reporting this issue. I will contact you directly for troubleshooting.
J Schmoll  (posted 2021-06-10 14:32:34.813)
I tried testing the PM100D using the LabVIEW examples supplied with the Optical Power Monitor software. The LabVIEW VIs are in the TLPM.LLB file. I tried to run the 32-bit examples. However, the example VI "Measure Power Sample.vi" was apparently saved in LabVIEW version 2019. I was trying to run the VIs in LabVIEW 2017. All of the other VIs in the library were apparently saved with earlier versions of LabVIEW, and I could open them without problems. I have used other Thor optical power meters in LabVIEW, so I wrote a simple test program using the same VI calls that worked for the other power meters. The code failed in the initialization step. The PM100D had firmware version 1.3.1. I updated it to 2.7.0, and now my LabVIEW code runs without error.
MKiess  (posted 2021-06-14 09:56:12.0)
Dear Mr. Schmoll, Thank you very much for this feedback. The version 1.3.1 is a quite old firmware version, with which there can be complications with the newer drivers. An update to the latest firmware and software version is always a recommendation here.
Milan Delor  (posted 2021-03-11 19:01:51.41)
Hello, are your power meter consoles (PM100D or PM400) compatible with power sensors from other manufacturers, such as Coherent? Alternatively, do you make custom power sensors? We need a 40 - 50 W max power sensor which is unfortunately not available with Thorlabs.
soswald  (posted 2021-03-16 10:55:31.0)
Dear Milan, thank you for your feedback. Our power meter consoles are not compatible with third-party sensors. For high powers in the 40-50 W regime we offer thermal sensors such as S425C-L or S322C. Since you prefer not to be contacted, please reach out to your local tech support team directly to discuss your application in more detail.
MKiess  (posted 2020-12-14 06:34:06.0)
Thank you for your feedback. Please check that you have the latest firmware installed on the PM100D. We have made a few changes regarding the SD card. You can find the firmware download at the link below: https://www.thorlabs.de/software_pages/ViewSoftwarePage.cfm?Code=OPM
user  (posted 2020-11-18 12:44:15.56)
Is there a way to reset all settings/memory to the factory default?
MKiess  (posted 2020-11-19 09:58:02.0)
Thank you very much for your inquiry. Depending on the sensor used, the PM100D can be reset to the default settings for the respective sensors (thermopile, photodiodes, pyroelectric). This can be done under 'System Menu \ Measurement Settings' for the corresponding sensor.
Alexander Kuznetsov  (posted 2020-06-30 10:25:33.08)
I have a question about the drivers TLPM_32 and PM100D_32. In our lab, we have a custom software to communicate with several PM100D remotely (e.g. the PM100D is connected to one PC and a user communicates with it from another PC). Such remote communication using PM100D_32.dll via NI-Visa Server works fine. However, devices configured to use the TLPM_32.dll driver are not "visible". Switching the driver to PM100D_32.dll solves it. However I would like to know, how would one achieve the remote communication with the device using TLPM_32.dll? Thank you in advance.
dpossin  (posted 2020-07-03 03:53:47.0)
Dear Alexander, Thank you for your feedback. We switched our software from the NI-VISA based driver PM100D.dll to the more robust driver architecture TLPM.dll. However if you need the old driver for your application we provide a tool called power meter driver switcher is installed together with the power meter software. Please find instructions how to change between the drivers in section 7 here: https://www.thorlabs.com/software/MUC/OPM/v2.2/TL_OPM_V2.2_web-secured.pdf. Also the commands are different compared to the old NI-VISA based driver. Instructions on programming the TLPM driver can be found here: C:\Program Files (x86)\IVI Foundation\VISA\WinNT\TLPM\Manual. I am reaching out to you in order to provide further support.
BINBIN ZHAO  (posted 2020-05-04 01:29:02.887)
Is there any example of MATLAB code used to control the PM100D and record the power automatically?
MKiess  (posted 2020-05-05 10:38:32.0)
This is an response from Michael of Thorlabs. Thank you very much for your inquiry. I have contacted you directly to provide further information.
Yangyang Liu  (posted 2020-01-09 15:12:26.583)
I am using PM100D. Recently, I want to update the firmware. And I connect the PM100D to computer by the monitor software. When I use the software to update the firmware there is always a warning that "user abort the download operation" but I do nothing. Hope for your answer. Thanks. Regards, Yangyang Liu.
nreusch  (posted 2020-01-10 08:52:49.0)
This is a response from Nicola at Thorlabs. Thank you for contacting us. Could you please check whether you enabled the firmware download mode on the PM100D console (System Menu --> Console Settings --> Firmware Upload --> Enabled) before trying to install the new firmware with the DFU wizard? A local Tech Support representative will contact you for further troubleshooting.
Junji Okamoto  (posted 2019-12-12 09:13:59.773)
I would like to know about "analog output" of PM100D. Q1, Is the output voltage from analog output "DC" voltage? (Is its wave shape flat?) Q2, Is the output voltage basically go from 0V to +2.0V? (In a Manual, from -0.3V to +2.3V)
wskopalik  (posted 2019-12-12 11:13:29.0)
This is a response from Wolfgang at Thorlabs. Thank you for your inquiry! The voltage signal at the analog output is the amplified photo-diode current or the amplified thermal or pyroelectric sensor voltage. So the voltage will change corresponding to the power of the incident light. If the incident light is CW, the signal will be a flat voltage signal. If the incident light is however modulated or pulsed, the signal will be modulated or pulsed as well. The range of 0V to 2V is the range in which you will get reliable measurement results. If e.g. the amplifier or the sensor are saturated, it is however possible that you get voltages in the range of -0.3V up to +2.3V. So the devices attached to the analog output should be able to handle voltages in this range without any damage. I will contact you directly to provide further assistance.
A. Devine  (posted 2019-12-02 15:49:34.81)
While polling a thermopile sensor over USB with the PM100D (using the LabVIEW drivers), occasionally NaN is returned instead of an actual power reading value. This seems to happen most frequently when readings are taken too close together. I have solved the problem by adding a 20 second delay between readings, but this seems too large. I do not experience the same behavior with the PM200 or newer power meters. I would appreciate any insight as to why the meter is returning NaN so that I can work on a more elegant solution. Thanks, AD
MKiess  (posted 2019-12-05 09:32:58.0)
This is an response from Michael of Thorlabs. Thank you very much for your inquiry. I have contacted you directly to discuss the specifications and measurement procedure of your light source, as well as the programming to find a solution together.
Ian Roberts  (posted 2019-10-29 19:32:01.613)
Using the SCPI commands in the manual I can communicate with the PM100D over USB to read the instantaneous power, which works well. However, I want to record data at a high rate (ideally every millisecond) which is too fast for serially polling the device using the MEAS power command. As the device can make measurements very rapidly and store the data to a CSV file, is it possible to read this data / transfer the file (once measurement is finished) over USB using SCPI commands? Or some other way (e.g. mounting the storage as a device the computer can access?) I appreciate Thorlabs offer a driver package / GUI but having to install separate software is highly unattractive (/ not even possible in some situations due to lack of admin rights). Thanks.
MKiess  (posted 2019-10-31 08:55:39.0)
This is a response from Michael at Thorlabs. Thank you very much for the inquiry. The limitation here is due to the data transfer rate of USB. However, you can use the analog output, which has a bandwidth of up to 100kHz. I contacted you directly to find a suitable solution for your application together.
DAVID KINGHORN  (posted 2019-06-07 20:44:24.12)
What is the part number for the AC Battery Charger for the PM100D Console?
MKiess  (posted 2019-06-12 05:05:45.0)
This is a response from Michael at Thorlabs. Thank you very much for the inquiry. The AC adapter for charging the system battery is not a standard Thorlabs product and therefore not available on our website. But of course it is possible to get a replacement from us. I will contact you directly to discuss further steps.
Samuel Gyger  (posted 2019-05-31 05:55:41.643)
We have the devices for a long time now and it seems the battery becomes bad (S/N P0000874) and (S/N PM001464) Is it possible to exchange the battery by ourselves. Are you selling replacement batteries? Or should we buy one online? Regards, Samuel Gyger
dpossin  (posted 2019-06-06 09:56:01.0)
Thank you for your feedback. It is not intended to change the battery by our customers but we offer to change the battery inhouse as a service. I will reach out to you directly in order to discuss the details.
Eneko Lopez  (posted 2019-03-21 07:29:41.42)
we have a PM100D console with a S121C sensor. Is there anyway to acquire data with matlab software? It would be very helpful for us. Thank you!
swick  (posted 2019-03-29 04:40:11.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. It is possible to remote control our power meter via Matlab. I contacted you directly to provide assistance.
Cao Duc  (posted 2019-03-21 10:37:56.82)
we recently received the PM100D console and a pyroelectric energy sensor ES120C with accessories. I tried to connect the sensor and the console by the insulator, post, and post holder but there was no signal at the display of the console, although it recognized the sensor, i turned trigger number down to 3%, then when i touched the console or the sensor it started having some noise, but the noise also stopped when i stopped touching. I tried again with my laser source, there was signal again. Can you give me some advice; or the specific connecting or setting guide of those devices will be very helpful with me. Thanks you!
swick  (posted 2019-03-29 04:57:09.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. The function principle for these sensors is different compared to Thermopiles or Photodiodes. Pyroelectric sensors (ES-Series) do only generate a signal when an optical pulse is detected. The pulse energy needs to be larger than the threshold which is defined via trigger level thus when setting trigger level to very low values you can observe noise. The measurement value will be updated with each incoming pulse and when no pulses appear the measurement display will be held on the last measured value. I contacted you directly to provide further assistance.
jagroopastro5  (posted 2019-01-05 22:00:31.453)
sir, recently i have purchased the PM100D with S130VC sensor module. i have measured the He Ne laser power with it and same time corresponding current in current mode. when i compare with the response curve of the sensor, it is showing high responsivity ( 0.4 approx against 0.36 specified value and it varying non linearly with power? why it is so? sir, do a high frequency oscillator device placed near sensor hear will affect the measurement of device?
wskopalik  (posted 2019-01-08 07:30:13.0)
This is a response from Wolfgang at Thorlabs. Thank you very much for your feedback! There are different possible reasons for this, e.g. the coupling of the laser in the sensor, incorrect settings on the power meter or also tolerances in the power of the laser itself. I will contact you directly so we can look into the details and find an explanation for these results.
krzysztof.anders  (posted 2018-12-14 21:06:32.34)
After deleting all files and directories on SD card I'm unable to write statistics file - every time I get Error 0x000000BE "Invalid directory name". I was trying also to format SD card (FAT32) and putting there PM100LOG directory - still the same problem
nreusch  (posted 2018-12-20 07:28:56.0)
This is a response from Nicola at Thorlabs. Thank you very much for reporting this issue. I will contact you directly for troubleshooting.
jlm  (posted 2018-10-01 14:17:08.03)
Hey I am trying to interface to your console PM100D with a c++ program written in QT. In the document https://www.thorlabs.com/software/MUC/OPM/v1.1/TL_OPM_V1.1_web-secured.pdf you state that I should find a header file at; “C:\Program Files (x86)\IVI Foundation\VISA\WinNT\include\TLPM.h” Unfortunately I cannot locate such a file. I tried to repair the installation, but that did not mend the issue. Can you help me?
nreusch  (posted 2018-10-04 04:58:17.0)
This is a response from Nicola at Thorlabs. Thank you for your inquiry. Yes, you are right the header file should be stored there. As this does not seem to be the case, I will send you the file via email.
kay.schaarschmidt  (posted 2018-08-08 15:23:22.83)
Hi, we are trzing to use the Thorlabs software and labview to read out data from a PM100D. It worked for occasionally but suddenly an error kept occuring Error -1073807345 occurred at PM100D Initialize.vi Neither our self-made labview program, nor the Thorlabs software is currently working anymore. Help appreciated.
nreusch  (posted 2018-08-09 10:59:53.0)
This is a response from Nicola at Thorlabs. Thank you for your inquiry! This seems to be a connection issue. I recommend to start troubleshooting this by using the Thorlabs software. Which version is installed on your PC? I will contact you directly to provide further assistance.
user  (posted 2018-06-20 13:03:01.267)
The cable on the wand is quite annoying. Will you ever offer a wireless sensor?
YLohia  (posted 2018-06-20 04:26:31.0)
We offer wireless sensors here: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=7233
hi243  (posted 2018-06-09 19:50:50.447)
Hi, I have the PL450B blue laser diode (450nm, 80mW) and I wish to measure the optical power coming out of this laser diode when it is pulsed at 30mW. The laser beam will be obstructed by a tuning fork element I am using, so the final optical power that I need to detect is around 1mW. My lab already has the PM100D console, so I just need help from you on deciding on a suitable power sensor/photo diode which can help me measure optical powers in the range 1mW-80mW (@450nm). Thanks
mvonsivers  (posted 2018-06-13 09:03:15.0)
This is a response from Moritz at Thorlabs. Thank you for your inquiry. The S121C would be suitable to measure powers of 500 nW - 500 mW in the wavelength range 400 - 1100 nm. Please note that for the measurement of pulsed sources special considerations have to be taken into account. I will contact you directly for further discussion.
magnus.engholm  (posted 2018-03-26 09:49:29.23)
Hi, We have the PM100D console and several photodiode and thermal sensors. Now, we are interested to measure the energy from a Xenon flash tube, hence a single pulse measurment. Can you please advice if/how this can be performed with the PM100D and what sensor neded?
swick  (posted 2018-03-28 04:15:29.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. We recommend pyroelectric sensors for single pulse energy measurements. It depends on several optical parameters (pulse width, average power, beam diameter, repetition rate) if these sensors are suitable for your light source. I contacted you directly for assistance.
pier29  (posted 2018-03-05 03:34:23.977)
And I also want to know whether the device (S/N P0005229) is compatible with S120VC or not. Spec. information says that "For the S120VC, these specifications are valid for devices with serial numbers 1203xxx or higher."
wskopalik  (posted 2018-03-05 08:06:34.0)
This is a response from Wolfgang at Thorlabs. Thank you very much for your inquiry! Yes, the PM100D is compatible with the sensor S175C, S120VC and all other currently offered power meter sensors. The information you have found on the website for the S120VC is only concerning the specifications we give for this sensor, but not the compatibility. The specifications have changed a while ago, so for sensors with serial numbers lower than 1203xxx they are slightly different. I will contact you directly to provide further assistance.
pier29  (posted 2018-03-05 03:28:17.093)
Hi, I already have PM100D (with S122C) and its serial number is P0005229. Is this device compatible with S175C? Thank you.
wskopalik  (posted 2018-03-06 09:17:38.0)
This is a response from Wolfgang at Thorlabs. Thank you very much for your inquiry! Yes, the PM100D is compatible with the sensor S175C and all other currently offered power meter sensors. I will contact you directly to provide further assistance.
louis_declerck  (posted 2017-12-08 19:13:13.053)
Hi, I am currently working with a spectrometer and the optical powermeter PM100A from thorlabs. My question to you guys is how the powermeter calculates the optical power from W into W/cm². Which area is chosen therefore? Another question is how the optical power is calculated itself. Is that done by a sort of integration over a range of wavelengths around the 'preferred wavelength' in the settings? This is very important for me since the data from a spectroscope are not corresponding to data from the PM100A. Sincerely yours, Dr Louis Declerck
swick  (posted 2017-12-18 03:41:00.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. PM100A can not display power densities so I think this is about PM100D. To display the power density in W/cm² in the right sub display it is necessary to enter the diameter of the incident beam or at an overfilled sensor the diameter of the sensor aperture. In the Meas Config menu the beam diameter can be set. I have contacted you directly for further assistance.
lokirune  (posted 2017-11-08 00:29:25.34)
Hi. I just lost power supply for PM100D. Where can I get them ? Thanks.
mdiekmann  (posted 2017-11-10 06:23:27.0)
This is a response from Meike at Thorlabs: Thank you for contacting us! We will get in touch with you directly to provide a quote for the power supply.
aye.aung  (posted 2017-10-04 23:04:07.507)
Dear Sir/Mdm, We are using PM100D to measure optical power of LEDs. The wavelength of LED is 850 nm. The sensor that we used is S120C which can measure from 400nm-1100nm. We set 850 nm at PM100D and get measurement. We also tried to set various wavelengths (400, 500,.., 1000, 1100 nm and so on) and get measurements. It is observed that the peak power is occurred to be at 1100 nm and the power at 850nm is lower than most of the measurement powers at other wavelengths. Please kindly advise. Appreciate if you could contact us. Thanks.
wskopalik  (posted 2017-10-05 04:54:48.0)
This is a response from Wolfgang at Thorlabs. Thank you very much for your inquiry. The wavelength you enter on the PM100D determines which responsivity is used to convert the current coming from the photodiode into a power values. This is necessary due to the spectral dependence of the responsivity of photodiodes. The sensor itself can however only measure the total power of a beam and cannot separate different wavelengths. This can lead to inaccuracies when you measure LEDs with a wide spectral distribution, because some parts of the spectrum may not be converted with the correct responsivity. The difference in the results you see is basically the spectral dependence of the responsivity of the sensor. The responsivity is quite low around 400nm and 1100nm, in between it increases to a maximum at around 950nm - 1000nm. You should see the inverse of that in the power values when you change the wavelength which agrees with what you have seen. I have contacted you directly to discuss all this in more detail.
DingR.F.1987  (posted 2017-04-05 17:06:16.62)
We would like to use S130vc & PM100D for measuring laser power. And we want to connect PM100D to NB via USB. Thus, what is the range of sampling rate will we obtain? Could we adjust it? Thank you.
swick  (posted 2017-04-06 03:13:43.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. In Thorlabs Optical Power Meter Utility at "Log Config" you can adjust the Number of Samples, the Interval Time (min. 0.1s) and the Averaging. Via Labview the max. sampling rate would be 300Hz.
abyangphilip  (posted 2017-03-02 20:40:14.097)
I'm using your device PM100D. Just now the power meter can't read anything from the sensor and displayed Zero. It can read when I press the connector to the power meter with much strength. But it just can't read after I stop pressing the sensor connector. I try using other sensors and still the same. I'm wondering if the connecting part of the power meter has bad contact. Should I open the power meter and change a new connector?
swick  (posted 2017-03-06 03:07:53.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. I have contacted you directly for assistance.
ww40556  (posted 2016-12-19 22:02:45.42)
I'm trying to connect PM100D by Visual C++, following by the Programming Reference, but I can't found the driver page. How could I connect PM100D by Visual C++. Thanks.
wskopalik  (posted 2016-12-21 02:59:02.0)
This is a response from Wolfgang at Thorlabs. Thank you very much for your inquiry. I am sorry for this issue and have contacted you directly to troubleshoot this in detail.
user  (posted 2016-03-07 09:21:29.703)
I'm using your device for the real time monitoring of few msec wide optical pulses, therefore I have the same problem as described in the previous message by gbeckford93. By writing my own application which only requests the data, I have done precise timing tests on your device and found that it is possible to increase the number of samples per second by concatenating multiple "READ?" on the same SCPI command. As example, by issuing the SCPI command "READ?;READ?;READ?;READ?;READ?" the instrument will respond with a string containing a list of 5 measurement that, if the averaging is set at 1 and auto range is disabled, are separated by 2.338 msec (2.369 msec with auto range enabled) instead of the 3 msec separation that would be obtained by retrieving the measurements by means of consecutive "READ?" in separate SCPI commands. Unfortunately, the FIFO buffer dedicated to the device output is only 256 bytes and the buffer filling condition is not handled by the firmware so, if the SCPI responce string requires more than 256 bytes, all the exceeding chars will be lost. Considering then that each measurement is transfered to PC using 15/16 ASCII chars (depending on sign), only up to 16 measurement can be requested on a single SCPI command without the risk of receiving an ASCII string truncated to 256 chars. By retrieving then arrays of 16 measurements, rather than single values, my application is able to read from your device up to 416 samples per second that (a part a small gaps between the arrays) are equispaced by 2.338 msec Considering that time requested for ADC conversion is only 0.333 msec, the remaining 2 msec are entirely spent by the device firmware to process the data and could certainly be significantly reduced if two additional SCPI Commands, rather standard in this kind of instruments, were implemented also in your device: - "CONFigure:ARRay" and "READ:ARRay?" to setup and retrieve an array of multiple measurement in a single com
shallwig  (posted 2016-03-09 05:34:09.0)
This is a response from Stefan at Thorlabs. Thank you very much for your valuable feedback. We will review your ideas and check how we can improve the units here. As you left no contact data, please contact us at europe@thorlabs.com for further questions.
gbeckford93  (posted 2016-01-27 14:31:47.583)
Does the software currently available (For both single and multiple devices) allow readings of 1kHz? Even with the interval at 0 and the averaging at 1 the most I am able to get is around 300Hz. If not then how can I increase the samples per second? Thank you.
shallwig  (posted 2016-01-28 06:39:37.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. The sampling speed of the currently available software is limited to around 300 Hz. This limitation has several reasons, mainly from the GUI which queries also the status of the device and sensor and saves the data into a file.This could be bypassed by writing a short own application which only requests the data. In the Software package also drivers for Labview, Visual Basic, C++ and C# are included. You can download Power meter application notes for programming from the “Programming Reference” Tab http://www.thorlabs.com/software_pages/viewsoftwarepage.cfm?code=PM100x&viewtab=5 Another limitation for getting equidistant data will be the USB connection. Sampling at 1 kHz is possible by using the PM100Ds Analog output. The Bandwidth is DC-100 kHz dependent on the sensor. I will contact you directly to check your application in more detail.
chang.chen  (posted 2015-09-30 16:44:51.837)
Hello, I bought two these powermeters with silicon detectors. But one of the powermeter PM100D didn't work. It shows cannot detect the sensor. I have tested the sensor in the good powermeter, and the sensor works. Is there a way to fix the broken powermeter? Thanks, Dr. Chang Chen imec, Belgium
shallwig  (posted 2015-09-30 11:50:28.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. I am sorry for the problems you face with one of your power meters. I will contact you directly to troubleshoot this in detail.
eh8423  (posted 2015-09-16 18:32:03.177)
I am using the powermeter with some C code to measure the transmission through a device. Halfway through my measurement the powermeter stops working and gives the error that it cannot write to the serial port. Why is this? Am I sampling too fast?
shallwig  (posted 2015-09-17 03:48:11.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. I am sorry for the problems you are facing with our device. We will contact you directly to troubleshoot this in detail.
jeffb  (posted 2015-05-26 18:29:20.047)
Are the S120VC and S120C detectors NIST traceable calibrated for irradiance? The detector aperture is specified as 9.5 mm but is the tolerance of the aperture negligible, calibrated for, or already accounted for in the specs? thanks!
shallwig  (posted 2015-05-27 06:48:28.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. All our detectors are only NIST traceable calibrated in terms of absolute power. The setup we use for calibrating our sensors can be found on our website in the power meter tutorial if you click on the “calibration” Tab: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=6188 We use a monochromator which has about 2mm beam diameter. Therefore the aperture dimensions and its tolerances are uncritical for the S120VC and S120C. Both have an input aperture of 9.5mm diameter. First a reference scan is carried out and the reference current (IRef) vs. wavelength is recorded. This allows the calculation of the optical power at each wavelength step. The Reference photodiodes are recalibrated annually at PTB or NIST, which gives the traceability. After that we replace the reference by the diode under test (DuT) and repeat the wavelength scan. This time the current (IDuT) vs. wavelength gets recorded. During any calibration scan, a monitor diode is used to observe power variations due to lamp aging. The ratio of the actual monitored value during calibration to that during the reference scan is used to correct the calibration scan. As soon as the deviation exceeds 1%, a repeated reference scan is carried out. The responsivity of the DuT is then calculated over the entire specified wavelength range of the DuT with a step size of 5 nm. These data sets (responsivity and wavelength) are saved to the sensor's memory, located in the DSUB connector. Additionally, the calibration data are printed out to the Certificate of Calibration and are saved to our server. Irradiance you can also display with our power meter consoles by entering the beam diameter. But the given value is a calculation made from the measured optical power and the beams dimensions. I will contact you directly to discuss your needs in more detail.
lhkorea  (posted 2014-11-25 15:15:08.25)
Hi. We have used a number of PM100Dand sensor head S155C and have some problems. These devices shows smaller power data than real value(measured by other sensor head). Furthermore, these shows radical power data change when 'Range' is changing to upper or lower range at 'Auto range on' state (for example, if power data is 44uW within ~45uW range, after then, the power data increases slightly over 45uW, the power data is just changed to around 130uW right after the measurement range is changed to ~450uW.) This problem applies to all PM100Ds and S155Cs we have. I think there is some problem about sensing calibration between pm100D and S155C(power measurement using a S146C sensor head has no problem now). At the first time when we used these devices, there was no problem like this. I don't know the reason of this problem exactly, but I guess this problem was caused since we used these devices by connecting to PC. Power measurement using PC software fixes the range option as 'Auto range', so we can't avoid this problem. Please reply asap. Thanks.
shallwig  (posted 2014-11-25 03:57:58.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. I will contact you directly to troubleshoot this issue in detail.
user  (posted 2014-02-28 08:14:35.767)
This is a response from Juergen H. at Thorlabs. Thank you very much for your inquiry. The analog output provides the amplified photodiode current or the amplified thermal or pyroelectric sensor voltage. With thermal sensors the analog output shows the direct amplified and accelerated voltage response from the sensor. With pyroelectric sensors the signal from the analog output is the pulse response from the sensor prior to the peak detection circuit. The signals from the analog outputs are not wavelength and zero corrected. The analog output voltage is range dependent and can be calculated to: U(out)[V] = 2V / full scale range value [V,A] x measurement value [V,A] The analog output voltage can go from -0.3V to +2.3V.
abul_ukproject  (posted 2014-02-27 17:15:14.057)
Hi we would like to know for the anaalog output of 0-2V, what does it correspond to in terms of power? We are using an optical chopper and a lock-in amplifier hence the need has arisen for a dictionary to translate the voltage readings back into power. Please reply quickly so that we can proceed with our research. Thanks from Singapore
lee.cairns  (posted 2014-01-28 09:23:05.91)
Hi, we have a number of these in various labs, and we frequently use these to log optical power over long periods of time. However, the units suffer from sporadic signal drop outs (over 7 drop outs in 48 hours!!) is there anything we can do to prevent this, or is this unit not designed to monitor power over long periods of time?
tschalk  (posted 2014-01-28 10:35:46.0)
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. I am sorry that you experience connection issues with our power meter. The device is designed to monitor power over long periods of time and 48 hours shouldn’t be an issue. Please check if you are using the latest firmware, Version 2.3.2, of ours. If this is not the case please perform an update, the latest firmware can be found here: http://www.thorlabs.de/software_pages/viewsoftwarepage.cfm?code=PM100x. For installation instructions please consult the users manual. I will also contact you directly in case that you experience any further difficulties.
joe.zott  (posted 2013-12-30 15:34:25.703)
I am a current PM100D customer. We own 3 devices currently and looking to purchase another. I am doing some testing now and seeing signal drop outs in the PC console that don't show up on the meter face and don't appear to be real. I am running newest firmware/software versions (2.3.2 etc.). Is there anyway to avoid this happening?
jvigroux  (posted 2013-12-31 05:06:23.0)
A response from Julien at Thorlabs: The discrepancy between what is shown on the computer and what is shown on the console is probably related to the fact that the refresh rate of the display is limited to 10Hz, while one can access much higher display rate on a computer. This however does not explain why there is the change in the first place. I will contact you directly to disucss the details of your set up and see what the origin of this problem could be.
emeyersc  (posted 2013-12-17 14:57:47.157)
We own a number of PM100D but seem to frequently lose the DC power supplies. Are you able to sell us those separately?
tschalk  (posted 2013-12-18 05:28:32.0)
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. We can provide the power supply separately. This is not a standard item, so you wont find it on the website. We will contact you directly with more detailed information.
d.albach  (posted 2013-11-05 14:47:54.683)
Dear Sir or Madam, we lost our hard cases which are delivered together with the PM100D. Is there any chance to get the hard cases stand-alone? Best Regards, Daniel
tschalk  (posted 2013-11-06 03:50:10.0)
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. We can can provide the case separately. I will contact you directly with detailed information.
snaghizadeh  (posted 2013-07-31 01:14:45.897)
Dear Sir/Madam, There is an example LabView VI on page 43 of operation manual(not quick reference) under section 6.3.2 Instrument Driver Example. I could not find the related VI inside the USB stick that came with PM100D powermeter box. Further, I do not understand what you exactly mean by "data carrier" in the manual, is it a folder name? Finally, I was informed by a colleague that powermeter has an averaging circuitry inside it and we do not need to write any sub VI for it. That is sending command AVER is sufficient. we have just powermeter sensors, does this mean that when we send the command AVER, the device automatically understands that "power" is going to be averaged?! Thank you in advance for your time and help. Regards, SN
jvigroux  (posted 2013-07-31 07:24:00.0)
a response from Julien at Thorlabs: thank you for your inquiry! The Labview example should normally be included on the USB stick that is delivered together with the power meter. The file name is "PM100D Simple Example" which is in the folder Applications of the USB stick. I will contact you per email and send you the data. the data carrier means the USB stick. I am sorry if this point was not clear. Finally, concerning the averaging, you can indeed use the AVER command to modify the average count n_a so that the value returned is already the average of the last n_a measurement values.
david.kortbawi  (posted 2013-07-24 17:36:02.92)
I don't see calibration service the the PM100D (or sensors) listed in the catalog. Could you please provide pricing and turnaround time to calibrate a PM100D and S120C sensor. In case my e-mail does not come through, please send info to david.kortbawi@dkengineering.com Thanks, Dave
tschalk  (posted 2013-07-25 06:02:00.0)
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. The calibration service for our photodiode sensors can be found here: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=3328 at the bottom of the site. The services are called CAL1, CAL2, CAL-S130 and CAL-S132. For the S120C you would need the service CAL1. The calibration for the power meter console PM100D is included when you order a sensor calibration. I will contact you directly to provide more detailed information.
paul.lauria  (posted 2013-07-19 13:00:07.21)
We have a couple PM100D's with S120C, and I'm trying to use them for a time-study of laser power vs. time over about 10 minutes. But I am concerned about the laser warming the photodiode and thus influencing the measurement. Do you have any suggestions--i.e. is there a temperature monitor on these photodiodes I could simultaneously monitor? Also, is there some plot of dark noise vs. temperature?
jvigroux  (posted 2013-07-22 11:27:00.0)
a response from Julien at Thorlabs: thank you for your feedback! the S120C only contain a resistive sensor to ensure that they are not overheating but cannot log the temperature directly. we offer a small USB temeprature logger (TSP01) that can be used in conjuncction with the power meter lines to log the temperature of the sensor over time. The requirement for such an external temperature logge rin this type of application is of course related to the incoming optical power. I will contact you directly to see which optin is the msot suited to your requirements.
pt_tanyingjie  (posted 2013-06-19 04:37:51.34)
I need to insert some labview source codes of PM100A/D into another measurement labview program. In the program, I need the power meter to set the wavelength of a monochromatic light, then measure the light intensity, meanwhile, save the wavelength value, light intensity into a file. Then, go to the next wavelength monochromatic light, then PM100 set this wavelength, measure the intensity,and so on. The problem I encountered is, the labview source codes in the USB in the package(or from the Thorlabs webpage)cannot work. PM100 has no response to these labview source codes.(e.g. set wavelength). And many of them are bad subVIs.(e.g.PM100-PM200 Utility). So could you help me with it? Thank you very much again!
tschalk  (posted 2013-06-20 09:22:00.0)
This is a response from Thomas at Thorlabs. Thank you very much for your inquiry. The software which can be downloaded from our homepage (https://www.thorlabs.com/software_pages/ViewSoftwarePage.cfm?Code=PM100x) contains the sub VIs necessary to access all of the functions which you require for your software. The LabVIEW Library is located in the folder: C://Program Files/National Instruments/LabVIEW X(latest version on your pc)/instr.lib/PM100D. You can access the individual functions through the function panel of LabVIEW: Instrument I/O -> Instrument Drivers -> PM100D. Two important functions to get a response from the power meter are the PM100D Initialize.vi and the PM100D Close.vi. The device must be initialized before you can use the other functions to control the power meter. At the end of the program the device must be closed. If you don't use the initialization and closing there will be problems with getting any response from the device. I will contact you directly for more detailed information.
user  (posted 2013-06-18 06:22:41.263)
We have a PM100D and a S150C sensor. The sensor is specified to have a resolution of 10pW, yet the numeric view does not display any digits below 0.1nW. The statistics view and the PC utility have enough digits to display 10pW and below, so the information must be there. Is there any way to make the numeric view display more digits with the S150C?
tschalk  (posted 2013-06-19 11:50:00.0)
This is a response from Thomas at Thorlabs. The display of the PM100D has 4 digits which is unfortunately not configurable. The highest resolution is then 100pW. If you want to archive higher resolution you can use the statistics screen or a connection to the computer. When using the console remotely, you are able to achieve a resolution of 1pW.
tttang  (posted 2013-03-13 09:32:44.11)
We have a PM100D with firmware v1.1.0. It can not be updated to newest firmware. The firmware upload is enable. We can update the other PM100D with newer version(v2.xx) successfully. Would you be able to help us? Does it need other steps to do that?
jvigroux  (posted 2013-04-02 11:52:00.0)
a resposne from Julien at Thorlabs: Thank you for your feedback. This normally should not happen. I will contact you directly to help with the troubleshooting
jacekgol  (posted 2013-02-28 08:24:21.04)
A response from Julien at Thorlabs: thank you for your answer. Can not I use the USB interface to the PC (~1kHz sample rate)?
jvigroux  (posted 2013-03-04 08:41:00.0)
A response from Julien at Thorlabs: you could use the USB logging software but please keep in mind that the sample rate is not fixed and will depend on your computer also. This means that you could possibly, based on your setup have a sample rate (when using the logging software) of a few 100Hz. This in turns means that you would have only a few point per laser cycle, which could potentially be a problem.
jvigroux  (posted 2013-02-28 07:52:00.0)
a response from Julien at Thorlabs: Thank you for your inquiry. The display of the PM100D has a refresh rate of 20Hz so that you will not be able to follow your 100Hz directly on the display. When setting the bandwidth to "high", you should however be able to see your signal both when using the logging program (~1kHz sample rate) or the analog output (100kHz bandwidth maximum). for modulation frequency at 1kHz, the only option is to use the analog output.
jvigroux  (posted 2012-11-15 10:05:00.0)
A response from Julien at Thorlabs: thank you for your inquiry. The S314C can withstand temperatures (constant operation) up to 85°. The lower limit of the temperature range is 0°.
edulgergil  (posted 2012-11-15 14:42:02.08)
Is there any operating temperature range for S314C thermal power head in order to get best efficiency?
jvigroux  (posted 2012-06-20 08:14:00.0)
A response from Julien at Thorlabs: Thank you for your feedback! The limitation of the data rate accessible through the software is to some extent limited by the software architecture. We are currently in the process of modifying the PM100 utility so as to allow the maximum possible sample rate (~1kS/s, hardware limited). We will release a beta version containing this feature at the beginning of the next week.
sebastien.du.tremblay  (posted 2012-06-17 22:25:59.0)
Hi, We bought a PM100D with a S130C sensor last month. We are trying to quantify the power output (mW) of a blue DPSS laser sending 5 ms pulses using the PM100 utilities software. We are unable to achieve sufficient sampling rate with this software, even when setting averaging to minimum (i.e. 1) and interval between samples to zero. In that case, we obtain about 35 samples/sec (and a noisy signal). We would like to achieve a better sampling rate using this software (i.e. 3Ksamples/sec). Any suggestions ? Thanks !
tcohen  (posted 2012-05-25 09:47:00.0)
Response from Tim at Thorlabs: Thank you for using our feedback tool! This happens if the console is in “Relative Measurement” operation mode. In this mode, the left and right sub-menus are fixed and used for “Ref” power and “P” current power, while the main display shows the difference with a + or – sign. If you push the delta “?” button to return to normal measurement mode, the sub menus will again be programmable.
user  (posted 2012-05-24 18:26:27.0)
I have two Thorlab meters, one of them I am able to set the right sub menu to µW/cm^2. The other Thorlabs meter does not allow me to do this through the menu commands. Have any of you encountered this before ?
tcohen  (posted 2012-02-22 10:43:00.0)
Response from Tim at Thorlabs to dayong-zhou: By clicking the "Software" tab on this webpage and clicking the link provided you can download the software that comes with the PM100D. When unzipped, look for the file named "Source Distribution" which will contain all of the .vi files. For convenience, the link is: http://www.thorlabs.com/software/MUC/PM100x/Software/Remote_Control_Application/PM100D-PM200_Utility_V4.0.zip
dayong-zhou  (posted 2012-02-21 23:23:17.0)
Just cannot find the LabVIEW examples mentioned in the Operation Manual for PM100D either in onlion Thorlabs softwares or in the attached SD stick. Could you email me these LabVIEW example programs? Thank you, D
jvigroux  (posted 2011-12-27 09:23:00.0)
A response form Julien at Thorlabs: Thank your for your feedback. This file is indeed missing from the example folder. I am sorry for the resulting inconvenience. We will add this file immediately.
seberangjeli  (posted 2011-12-26 22:43:00.0)
I bought PM100D recenty and now trying to use Labview program, but the main program ask for PM100D_Open.vi file which is not included with Thorlabs USB drive. Could you please send me the file? Thanks. Shahnan
jjurado  (posted 2011-08-02 11:16:00.0)
Response from Javier at Thorlabs to kging: Thank you very much for contacting us. The sampling rate of our PM100xxx power meters is 3000 samples/sec. This is the internal sampling rate of the console. Using the software, you can set up averaging, which is the number of measurements to be averaged, resulting in 1 measurement sample. You can also configure a number of samples to be taken and displayed, as well as an interval time between two averaging operations.
kqing  (posted 2011-07-29 15:56:48.0)
Whats the sampling rate? Thanks. K
lsy  (posted 2011-04-01 00:56:05.0)
Suddenly, Our PM100D cant recognize S121C. I think there is no problem with S121C, cause our other device can identify the sensor. PM100D indicates the sensor as "PD Adapter". Whats the problem? F.W version is V2.2 Plz help us. Regards Sungyong lee
jjurado  (posted 2011-02-09 17:48:00.0)
Response from Javier at Thorlabs to ren_mengxin: Thank you very much for submitting your inquiry. All the C series sensors, including the S120VC, are compatible with the PM100D.
ren_mengxin  (posted 2011-02-09 19:14:23.0)
Is sensor S120VC compatible with console PM100D? We have gotten PM100D and want another sensor.
tor  (posted 2010-11-15 08:57:40.0)
A response to Vishal from Tor at Thorlabs: Thank you for your interest in our photodiode sensors. The measurement ranges, in watts, for our C-series photodiode sensors are shown below on this page. Please do not hesitate to contact me at techsupport@thorlabs.com if youd like some assistance selecting an appropriate sensor for your application.
vishals  (posted 2010-11-15 02:23:20.0)
Pls send photodiode measurement range in watt unit. vishal sakarvadiya vishals@sac.isro.gov.in
Thorlabs  (posted 2010-08-18 09:04:39.0)
Response from Javier at Thorlabs to Paulo Santos: Thank you very much for your feedback. The software drivers for the PM100 and PM100D power meters are not compatible. They were developed using different protocols, which makes control with a single program not possible.
santos  (posted 2010-08-17 10:35:48.0)
We have PM100 and PM100D power meters, which we would like to control with a single program. I would like to know if the drivers for the new model PM100D also work for the old model PM100. Thanks in advance, Paulo Santos
Thorlabs  (posted 2010-07-15 11:48:29.0)
Response from Javier at Thorlabs to last poster: thank you for your feedback. We are currently in the process of evaluating the power rating specifications for all our sensors. We will update all the values on the web shortly.
user  (posted 2010-07-13 23:51:32.0)
teh overview tab says "100 pW to 250 W" but the strongest sensor goes to 200W
apalmentieri  (posted 2010-03-03 09:10:19.0)
A response from Adam to Thorlabs to jpwilde: We have added this file to the software and emailed you a copy of the complete vi folder. This file is included in the folder that was sent out to you.
jpwilde  (posted 2010-03-02 18:48:44.0)
I recently purchased the PM100D (actually, the PM130D) and tried loading the LabView utility software application. I program in LabView and would like to use your source code. However, the main utility code (PM100D Utility.vi) is looking for a sub-VI that was not included with the source code. Can you please send me: PM100D_Open.vi ? Thanks, Jeff Wilde 408-828-3296
apalmentieri  (posted 2010-01-29 11:20:56.0)
A response from Adam at Thorlabs to ctrao2000: I will contact you directly to find the exact instruments that will suit your requirements.
ctrao2000  (posted 2010-01-29 03:05:11.0)
i needs some optical instruments for Ha noi university ò technology
klee  (posted 2009-12-07 11:08:45.0)
A response from Ken at Thorlabs to ag: With the PM100D, you can easily access the wavelength menu by pressing the wavelength key. The menu offers 8 individually configurable sensor independent wavelength settings. To edit a wavelength keep the OK key pressed for 1 second. Set the desired wavelength with the arrow keys.
ag  (posted 2009-12-04 11:07:37.0)
One of the most annoying things about the old version was the huge number o key presses required to change the wavelength, does this do any better? Nice to have a USB interface but it doesnt mention Mac or Linux...
klee  (posted 2009-09-04 16:48:27.0)
A response from Ken at Thorlabs to cye: You will be receiving a quote from our sales deparment shortly.
cye  (posted 2009-09-04 15:27:43.0)
Please send quotation for PM100D S121C Thanks, My information: Chianping Ye, PhD Division of Endocrinology BIDMC & Harvard Medical School 330 Brookline Ave E/CLS 7, 720 Boston, MA 02215 Telephone: 617-735-3353 Fax: 617-735-3323
jhartmann  (posted 2009-07-09 11:13:55.0)
A response from Juergen at Thorlabs to charlesholbrow : There is no exposure time control for photo diode sensors like S120C - the photo diode delivers a current, proportional to optical power. The required averaging is possible - see also manual, sction 4.2.6 "Statistics Display"
charlesholbrow  (posted 2009-07-07 12:22:51.0)
Is it possible to reduce the repetition rate of the meters reading? Is it possible to increase the exposure time of the connected photo diode? I am using a S120C photo Diode sensor. Ideally, I would like to be able to press a button on the meter and display the average value recorded by the meter over the next second.
klee  (posted 2009-06-26 17:42:13.0)
A response from Ken at Thorlabs to ondine.suavet: You will need to use it with a sensor head that can measure 345nm, for example the S120VC or S130VC. Then you will need to make the wavelength correction for 345nm. For more details, please refer to the operating manual, which can be downloaded under the Documents and Drawings tab.
ondine.suavet  (posted 2009-06-26 16:59:48.0)
I would like to know if I can select the wavelength (340nm in my case)where the UV intensity is measured? Thank you very much. Regards, Ondine
Greg  (posted 2009-03-31 07:18:13.0)
A response from Greg at Thorlabs to cslim: A member of our Technical Support group will send you the software ASAP. I apologize that we do not have this on our website already. We are working on adding it to the download section of our website (gray bar at top: Service -> Download).
cslim  (posted 2009-03-29 01:16:56.0)
We bought the thorlabs PM100D power meter but lost the CD. May I know where I can download the content in the CD? Regards, winston.
Laurie  (posted 2009-03-06 16:23:31.0)
Response from Laurie at Thorlabs to andyh: Thank you for your interest in our power and energy meters. Someone from our technical support staff will contact you shortly to offer a solution.
andyh  (posted 2009-03-06 14:42:51.0)
We just bought the old style meter (~2 months ago) along with a slim cell sensor and thermal sensor. It appears now that we cannot get a second meter of the style that would fit our current sensor cells. Is that correct? What would the cost be to change the connectors to the current style on our 2 sensor? We are interested in having two meter and sensors that are interchangeable. It looks like your product revisions have prevented us from achieving this. What are our options?

Thorlabs offers a wide selection of power and energy meter consoles and interfaces for operating our power and energy sensors. Key specifications of all of our power meter consoles and interfaces are presented below to help you decide which device is best for your application. We also offer self-contained wireless power meters and compact USB power meters.

When used with our C-series sensors, Thorlabs' power meter consoles and interfaces recognize the type of connected sensor and measure the current or voltage as appropriate. Our C-series sensors have responsivity calibration data stored in their connectors. The console will read out the responsivity value for the user-entered wavelength and calculate a power or energy reading.

  • Photodiode sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current. The photodiode's responsivity is wavelength dependent, so the correct wavelength must be entered into the console for an accurate power reading. The console reads out the responsivity for this wavelength from the connected sensor and calculates the optical power from the measured photocurrent.
  • Thermal sensors deliver a voltage proportional to the input optical power. Based on the measured sensor output voltage and the sensor's responsivity, the console will calculate the incident optical power.
  • Energy sensors are based on the pyroelectric effect. They deliver a voltage peak proportional to the pulse energy. If an energy sensor is recognized, the console will use a peak voltage detector and the pulse energy will be calculated from the sensor's responsivity.

The consoles and interfaces are also capable of providing a readout of the current or voltage delivered by the sensor. Select models also feature an analog output.

Consoles

Item # PM100A PM100D PM400 PM5020
(Click Photo to Enlarge) PM100A PM100D PM400 PM5020
Key Features Analog Power Measurements Digital Power and Energy Measurements Digital Power and Energy Measurements, Touchscreen Control Dual Channel
Compatible Sensors Photodiode and Thermal Power Photodiode Power, Thermal Power, and Pyroelectric Energya Photodiode Power, Thermal Power, Thermal Power and Position, and Pyroelectric Energya Photodiode Power, Thermal Power, Thermal Power and Position, and Pyroelectric Energy
Housing Dimensions
(H x W x D)
7.24" x 4.29" x 1.61"
(184 mm x 109 mm x 41 mm)
7.09" x 4.13" x 1.50"
(180 mm x 105 mm x 38 mm)
5.35" x 3.78" x 1.16"
(136.0 mm x 96.0 mm x 29.5 mm)
9.97" x 4.35" x 11.56"
(253.2 mm x 110.6 mm x 293.6 mm)
Channels 1 2
External Temperature Sensor Input (Sensor not Included) - - Readout and Record Temperature Over Time Readout and Record Temperature Over Time
External Humidity Sensor Input (Sensor not Included) - - Readout and Record Humidity Over Time Readout and Record Humidity Over Time
Input/Output Ports - 4 GPIO, Programmable 4 Configurable Digital I/O Channels
Shutter Control - - - Support for SH05R(/M) or SH1(/M) Optical Shutter with Interlock Input
Fan Control - - - Yes!
Source Spectral Correction - - Yes! Yes!
Attenuation Correction - - Yes! Yes!
External Trigger Input - - - Yes!
Display
Type Mechanical Needle and LCD Display with Digital Readout 320 x 240 Pixel Backlit Graphical LCD Display Protected Capacitive Touchscreen with Color Display
Dimensions Digital: 1.9" x 0.5"
(48.2 mm x 13.2 mm)
Analog: 3.54" x 1.65"
(90.0 mm x 42.0 mm)
3.17" x 2.36"
(81.4 mm x 61.0 mm)
3.7" x 2.1"
(95 mm x 54 mm)
4.32" x 2.43"
(109.7 mm x 61.6 mm)
Refresh Rate 20 Hz 10 Hz (Numerical)
25 Hz (Analog Simulation)
25 Hz
Measurement Viewsb
Numerical yes yes yes
Mechanical Analog Needle yes - - -
Simulated Analog Needle - yes Yes! yes
Bar Graph - yes Yes! yes
Trend Graph - yes Yes! yes
Histogram - yes - -
Statistics Yes! yes Yes! yes
Memory
Type - SD Card NAND Flash SD Card
Size - 2 GB 4 GB 8 GB
Power
Battery LiPo 3.7 V 1300 mAh LiPo 3.7 V 2600 mAh -
External 5 VDC via USB or Included AC Adapter 5 VDC via USB Line Voltage: 100 - 240 V
  • As the PM100D and PM400 consoles can only support repetition rates of up to 3 kHz, they should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.
  • These are the measurement views built into the unit.

Interfaces

Item # PM101 PM102 PM103 PM101A PM102A PM103A
(Click Photo to Enlarge) PM101 PM102 PM103 PM101A PM102A PM103A
Operation Protocol USB, RS232, UART,
and Analog
USB and Analog SMA
Sensor Compatibility
Photodiode - -
Thermal Power - -
Thermal Position & Power - - - -
Pyroelectric - - - -

Item # PM103E PM101R PM101U PM102U PM103U PM100USB
(Click Photo to Enlarge) PM101R PM101U PM102U PM103U PM100USB
Operation Protocol Ethernet, RS232, and Analog USB and
RS232
USB Operation USB
Sensor Compatibility
Photodiode -
Thermal Power -
Thermal Position & Power - - - -
Pyroelectric - - - a
  • As the PM100USB interface can only support repetition rates of up to 3 kHz, it should not be used with the ES408C sensor, which detects repetition rates up to 10 kHz.
  • Dependent on PC Settings
  • These power meter interfaces do not have a built-in monitor, so all data must be displayed through a PC running the Optical Power Monitor Software.
  •  48 V is the nominal voltage over the network, but can range from 36 V - 57 V.
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Digital Optical Power and Energy Meter

  • Compact, Handheld, Power and Energy Meter Console
  • Large 4" LCD Screen
  • Long-Life Internal Li-Polymer Battery
  • Pre-Installed 8 GB SD Memory Card for Data Storage
  • Console is Calibrated and Includes Certificate of Calibration

Please note that sensors are not included with the PM100D console. For information about our compatible sensors, please see the sensor descriptions below. Thorlabs does offer a variety of Power Meter Kits with the PM100D Console bundled with several of our most popular sensors. Please visit our Power Meter Kits page for more details.

Thorlabs offers a recalibration service for the PM100D, which can be ordered below (see Item # CAL-PM1). Alternatively, if you have a corresponding sensor that needs recalibrating, you can include the PM100D with the sensor for recalibration at no additional cost. To order this service, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PM100D Support Documentation
PM100DCompact Power and Energy Meter Console, Digital 4" LCD
$1,270.39
Today
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Standard Photodiode Power Sensors

S120C and quick release 30mm Cage System
Click to Enlarge
S120C and CP44F Quick-Release Mount
  • For General Purpose Optical Power Measurements
  • Integrated Viewing Target for Easy Sensor Alignment
  • Ø9.5 mm Sensor Aperture
  • Sensor, Protective Cap, IR Target, and Thread Adapter Included
  • Fiber Adapters Available Separately (See Table Below)
  • See the Full Web Presentation for More Information

These Standard Photodiode Power Sensors are ideal for metering low power coherent and incoherent sources from the UV to the NIR. Each NIST-Traceable, calibrated sensor features an integrated viewing target for easy alignment, enhanced shielding against electromagnetic interference, an over-temperature-alert device, and a large Ø9.5 mm sensor aperture. The sensors are compatible with 30 mm cage systems, Ø1/2" posts, and SM1 (1.035"-40) lens tubes, and are ideal for free-space and fiber-coupled sources.

Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD for UV-extended Si sensors, Item # CAL-PD for Si sensors and Item # CAL-IRPD for Ge sensors).

Item #a S120VC S120C S121C S122Ch
Sensor Image
(Click the Image to Enlarge)

S120VC

S120C

S121C

S122C

Aperture Size Ø9.5 mm
Wavelength Range 200 - 1100 nm 400 - 1100 nm 400 - 1100 nm 700 - 1800 nm
Power Range 50 nW - 50 mW 500 nW - 500 mW 50 nW - 40 mW
Detector Type Si Photodiode (UV Extended) Si Photodiode Ge Photodiode
Linearity ±0.5%
Resolutionb 1 nW 10 nW 2 nW
Measurement Uncertaintyc ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (200 - 279 nm,
981 - 1100 nm)
±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)
±5%
Responsivityd (Click for Plot)
Raw Data

Raw Data

Raw Data

Raw Data
Coating/Diffuser Reflective ND (OD1.5)e Reflective ND (OD1)f Reflective ND (OD2)g Absorptive ND (Schott NG9)
Head Temperature Measurement NTC Thermistor 4.7 kΩ
Housing Dimensions Ø30.5 mm x 12.7 mm
Cable Length 1.5 m
Post Mountinge,f,g Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread External SM1 (1.035"-40)
Compatible Fiber Adapters S120-FC2, S120-FC, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-LC, and S120-SC (Not Included)
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm.
  • All sensor responsivities are calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S120VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • For the S120C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG3). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • For the S121C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a absorptive ND diffuser (Schott NG9). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
  • Previously, S122C came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S120VC Support Documentation
S120VCStandard Photodiode Power Sensor, UV-Extended Si, 200 - 1100 nm, 50 nW - 50 mW
$494.17
7-10 Days
S120C Support Documentation
S120CStandard Photodiode Power Sensor, Si, 400 - 1100 nm, 50 nW - 50 mW
$356.39
Today
S121C Support Documentation
S121CStandard Photodiode Power Sensor, Si, 400 - 1100 nm, 500 nW - 500 mW
$387.27
7-10 Days
S122C Support Documentation
S122CStandard Photodiode Power Sensor, Ge, 700 - 1800 nm, 50 nW - 40 mW
$711.56
Today
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Slim Photodiode Power Sensors


Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
S130C1Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 500 pW - 5 mW, Up to 500 mW with Filter
CP332SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, 8-32 Tap
TR61Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 6"
ER6-P43Cage Assembly Rod, 6" Long, Ø6 mm, 4 Pack
CM1-BS013130 mm Cage Cube-Mounted Non-Polarizing Beamsplitter, 400 - 700 nm, 8-32 and M4 Adapters
View Metric Product List
Item #QtyDescription
Metric Product List
S130C1Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 500 pW - 5 mW, Up to 500 mW with Filter
CP33/M2SM1-Threaded 30 mm Cage Plate, 0.35" Thick, 2 Retaining Rings, M4 Tap
TR150/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 150 mm
ER6-P43Cage Assembly Rod, 6" Long, Ø6 mm, 4 Pack
CM1-BS013130 mm Cage Cube-Mounted Non-Polarizing Beamsplitter, 400 - 700 nm, 8-32 and M4 Adapters
S130C Sensor in a 30 mm Cage

Click for Details

SM1A29 SM1 Thread Adapter
Mounted on a S130C Sensor

Click for Details
View Product List
Item #QtyDescription
Universal Product List
S130C1Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 500 pW - 5 mW, Up to 500 mW with Filter
FB-511Single-Axis FiberBench, L = 51 mm, 5 Positions
FBSM1FiberBench Mount for Slim Photodiode Sensors
HCA3-SM11FiberBench Wall Plate, FiberPort Compatible, Internally SM1-Threaded
PAF-X-5-B1FiberPort, FC/PC & FC/APC, f=4.6 mm, 600 - 1050 nm, Ø1.00 mm Waist
FBR-LPVIS1Rotating Linear Polarizer Module, 500 - 720 nm, Ø2.5 mm CA
S130C Photodiode Sensor Mounted in FiberBench System Using FBSM Mount
  • For Optical Power Measurements in Confined Spaces
  • Very Slim Design: 5 mm Thin on Sensor Side
  • Ø9.5 mm Sensor Aperture
  • Slideable ND Filter Automatically Changes Sensor Power Range
  • Optional SM1A29 Adapter with VIS/IR Target and External SM1 Threading (More Details)
  • Optional FBSM Mount with VIS/IR Target for FiberBench Systems (More Details)
  • See the Full Web Presentation for More Information

These Slim Photodiode Power Sensors are designed to take optical source power measurements in locations where space and accessibility are at a premium. The 5 mm thin sensor end can fit between closely spaced optics, cage systems, and other arrangements where standard power meters may not fit. The NIST-Traceable, calibrated sensors also feature a large Ø9.5 mm sensor aperture and slideable neutral density filter for dual power ranges in one compact device.

A separately available SM1A29 adapter can be attached by 2 setscrews to any S130 series power sensor to mount fiber adapters, light shields, filters or any other SM1-threaded (1.035"-40) mechanics or optics. The FBSM Mount allows our S130 series power sensors to be mounted vertically into FiberBench systems for stable mounting with a minimal footprint.

Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD2 for UV-extended Si sensors, Item #CAL-PD2 for Si sensors, and Item # CAL-IRPD2 for Ge sensors).

Item #a S130VC S130C S132C
Sensor Image
(Click the Image to Enlarge)

S130VC

S130C

S132C

Aperture Size Ø9.5 mm
Wavelength Range 200 - 1100 nm 400 - 1100 nm 700 - 1800 nmb
Power Range
(with Filter)
500 pW - 0.5 mWc
(Up to 50 mW)c
500 pW - 5 mW
(Up to 500 mW)
5 nW - 5 mW
(Up to 500 mW)
Detector Type Si Photodiode (UV Extended) Si Photodiode Ge Photodiode
Linearity ±0.5%
Resolution 100 pWd 1 nWe
Measurement Uncertaintyf ±3% (440 - 980 nm)
±5% (280 - 439 nm)
±7% (200 - 279 nm, 981 - 1100 nm)
±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)
±5%
Responsivityg (Click for Plot)
Raw Data

Raw Data

Raw Data
Coating/Diffuser Reflective ND (OD1.5)c Reflective ND (OD2)h Absorptive ND (Schott NG9/KG3)b
Housing Dimensions 150 mm x 19 mm x 10 mm; 5 mm Thickness on Sensor Side
Cable Length 1.5 m
Post Mounting 8-32 and M4 Taps
Adapters (Not Included) SM1A29: Add SM1 Thread and Viewing Target to Aperture
Fiber Adapters Compatible with SM1A29 Adapter: S120-FC2, S120-FC, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, and S120-LC
FBSM: Integrate Sensor into FiberBench Setups
Compatible Consoles PM400, PM100D, PM100USB, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • For the S132C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1), which would decrease the wavelength range from 700 nm to 1800 nm to 1200 nm to 1800 nm. For additional information, please contact technical support.
  • For the S130VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an optical power range of 5 nW to 5 mW (50 nW to 50 mW with filter) and a reflective ND diffuser (OD1). For additional information, please contact technical support.
  • Measured with PM100D console in low bandwidth setting, without filter.
  • Measured with PM100D console in low bandwidth setting at 1550 nm, without filter.
  • Beam Diameter > 1 mm.
  • All sensor responsivities are calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • For the S130C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). For additional information, please contact technical support.
SM1A29 is an adapter that can be attached by 2 set screws to any S130 series power sensor. This gives the possibility to mount fiber adapters, light shields, filters or any other SM1 threaded mechanics or optics.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S130VC Support Documentation
S130VCSlim Photodiode Power Sensor, UV-Extended Si, 200 - 1100 nm, 500 pW - 0.5 mW, Up to 50 mW with Filter
$717.51
7-10 Days
S130C Support Documentation
S130CSlim Photodiode Power Sensor, Si, 400 - 1100 nm, 500 pW - 5 mW, Up to 500 mW with Filter
$592.77
7-10 Days
S132C Support Documentation
S132CSlim Photodiode Power Sensor, Ge, 700 - 1800 nm, 5 nW - 5 mW, Up to 500 mW with Filter
$842.24
Today
SM1A29 Support Documentation
SM1A29Customer Inspired! SM1 Thread Adapter for Slim Photodiode Sensors
$49.01
Today
FBSM Support Documentation
FBSMFiberBench Mount for Slim Photodiode Sensors
$48.69
Lead Time
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Compact Slim Photodiode Power Sensor

Item #a S116C
Sensor Image
(Click the Image to Enlarge)

S116C

Aperture Size Ø6 mm
Wavelength Range 400 - 1100 nm
Power Range 20 nW - 50 mW
Detector Type Si Photodiode
Linearity ±0.5%
Resolution 1 nWb
Measurement Uncertaintyc ±3% (451 - 1000 nm)
±5% (400 - 450 nm, 1001 - 1100 nm)
Responsivityd
(Click for Plot)
Typical Responsivity
Raw Data
Coating/Diffuser Absorptive ND (NG9)
Housing Dimensions
(L x W x T)
70.0 mm x 11.0 mm x 8.9 mm;
10.0 mm Width and 4.5 mm Thickness on Sensor Side
Active Detector Area 7 mm x 7 mm
Cable Length 1.5 m
Mounting Threads 2 Universal 8-32 / M4 Taps
(One on the Back, One on the Bottom),
Posts Not Included
Adapters
(Not Included)
SM05A29: Add SM05 Thread to Aperture
Fiber Adapters Compatible with SM05A29 Adapter:
PM20-FC2, PM20-FC, PM20-APC2, PM20-APC,
PM20-SMA, PM20-ST, PM20-SC, and PM20-LC
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Measured with PM100D console in low bandwidth setting.
  • Beam Diameter > 1 mm.
  • The sensor responsivity shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
SM1A29 is an adapter that can be attached by 2 set screws to any S130 series power sensor. This gives the possibility to mount fiber adapters, light shields, filters or any other SM1 threaded mechanics or optics.
  • For Optical Power Measurements in Tiny Spaces Such as 16 mm Cage Systems
  • Wavelength Range: 400 - 1100 nm
  • Very Slim Design: 10.0 mm Wide and 4.5 mm Thin on Sensor Side
  • Silicon Photodiode with Ø6 mm Sensor Aperture
  • Designed for Power Measurements for Low Power Lasers
  • Post Mountable via 8-32 (M4) Taps
  • SM05A29 Adapter with External SM05 (0.535"-40) Threading Available Separately (More Details)
  • See the Full Web Presentation for More Information

The S116C Compact Slim Photodiode Power Sensor is designed to take optical source power measurements in locations where space and accessibility are at a premium. The 4.5 mm thin photodiode sensor can fit between the rods of a 16 mm cage system, as seen in the application photo below, as well as through the side openings of our slotted Ø1/2" lens tubes (Item #s SM05L20C and SM05L30C). This sensor also features a Ø6 mm sensor aperture.

A separately available SM05A29 adapter can be attached by two 0.05" (1.3 mm) hex setscrews to an S116C power sensor to mount fiber adapters, light shields, filters or any other SM05-threaded (0.535"-40) mechanics or optics. The adapter mounted on the S116C power sensor is shown below.

Each sensor is shipped with NIST- and PTB-traceable calibration data. The included data is determined with the help of a certified reference diode, which corresponds to the spectral range of the sensor to be calibrated. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors).


Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
S116C1Compact Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 20 nW - 50 mW
MSH21Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, #4 (M3) Slot
MS1R1Mini-Series Optical Post, Ø6 mm, L = 1"
SC6W116 mm Cage Cube
SCP05116 mm Cage System, XY Translating Lens Mount for Ø1/2" Optics
KC05-T1SM05 Threaded Kinematic Cage Mount, Ø1/2" Optics
TR11Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 1"
SR4-P42Compact Cage Assembly Rod, 4" Long, Ø4 mm, 4 Pack
PH1.51Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 1.5"
BA21Mounting Base, 2" x 3" x 3/8"
View Metric Product List
Item #QtyDescription
Metric Product List
S116C1Compact Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 20 nW - 50 mW
MSH21Swivel-Base Mini-Series Post Holder, 2" (51 mm) Tall, #4 (M3) Slot
MS1R/M1Mini-Series Optical Post, Ø6 mm, L = 25 mm
SC6W116 mm Cage Cube
SCP05116 mm Cage System, XY Translating Lens Mount for Ø1/2" Optics
KC05-T/M1SM05 Threaded Kinematic Cage Mount, Ø1/2" Optics, Metric
TR30/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 30 mm
SR4-P42Compact Cage Assembly Rod, 4" Long, Ø4 mm, 4 Pack
PH40/M1Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=40 mm
BA2/M1Mounting Base, 50 mm x 75 mm x 10 mm
S116C Sensor in a 16 mm Cage System

Click for Details

SM05A29 SM05 Thread Adapter
(Sold Separately) Mounted on
an S116C Sensor
Based on your currency / country selection, your order will ship from Newton, New Jersey  
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S116C Support Documentation
S116CCompact Slim Photodiode Power Sensor, Si, 400 - 1100 nm, 20 nW - 50 mW
$439.11
7-10 Days
SM05A29 Support Documentation
SM05A29SM05-Threaded Adapter for Compact Slim Photodiode Sensors
$46.10
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Microscope Slide Photodiode Power Sensors

Item #a S170C S171C
Sensor Image
(Click Image to Enlarge)
S170C Microscope Slide Power Head S170C Microscope Slide Power Head
Overall Dimensions 76.0 mm x 25.2 mm x 5.0 mm
(2.99" x 0.99" x 0.20")
Active Detector Area 18 mm x 18 mm
Input Aperture 20 mm x 20 mm
Wavelength Range 350 - 1100 nm 400 - 1100 nm
Optical Power Working Range 10 nW - 150 mW 1 nW - 15 mW
Detector Type Silicon Photodiode
Linearity ±0.5%
Resolution 1 nWb 0.5 pWc
Measurement Uncertaintyd ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)
±3% (440 - 980 nm)e
±5% (400 - 439 nm)e
±7% (981 - 1100 nm)e
Responsivityf
(Click for Plot)
Typical Responsivity
Raw Data
Typical Responsivity
Raw Data
Neutral Density Filter Reflective (OD 1.5) Absorptive (OD 0.4)
Cable Length 1.5 m
Mounting Thread Universal 8-32 / M4 Tap, Post Not Included
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101R, PM101U, PM103, PM103APM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Measured with PM100D console in low bandwidth setting.
  • Measured with PM5020 console in low bandwidth setting.
  • Beam Diameter >1 mm
  • Valid for 24 ± 2 °C
  • The sensor responsivity shown in this plot was calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
  • Designed to Measure Optical Power at the Sample Plane of a Microscope
  • Silicon Photodiode with Large 18 mm x 18 mm Active Area
  • Sensor Housing Dimensions: 76.0 mm x 25.2 x 5.0 mm
  • Index Matching Gel Utilized in Design to Prevent Internal Reflections
  • Information Stored in Connector
    • Sensor Data
    • NIST- and PTB-Traceable Calibration Data
  • Post Mountable via 8-32 (M4) Tap

The Microscope Slide Power Sensor Heads with silicon photodiodes are designed to measure the power at the sample plane in microscopy setups. The S170C sensor can detect wavelengths from 350 nm to 1100 nm at optical powers from 10 nW to 150 mW, while the S171C sensor can detect wavelengths from 400 nm to 1100 nm at powers from 1 nW to 15 mW. Each sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.

The photodiodes have 18 mm x 18 mm active areas and are contained in sealed housings behind neutral density (ND) filters. A 20 mm x 20 mm indentation around the surface of the ND filter is sized to accept standard microscope cover slips. An immersion medium (water, glycerol, oil) may be placed in this well directly over the ND filter, or a cover slip may be inserted first to simplify clean up. The gap between the photodiode and the neutral density filter has been filled with an index matching gel in order to prevent internal reflections from causing significant measurement errors when using high NA objectives with oil or water.

The bottom of each sensor housing features a laser-engraved grid to aid in aligning and focusing the beam. In standard microscopes, this grid can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the transmitted illuminator to align the grid on the detector housing with the beam, thereby centering the sensor in front of the objective. Alternatively, the diffusive surface of the ND filter can be used as a focusing plane.

To avoid damaging the sensor, we recommend positioning it in the light path at a location where the beam is not focused. It is important not to exceed the Max Average Power Density (see Specs tab) over the beam's spot size.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Sensor specifications and the included NIST- or PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. We recommend yearly recalibration to ensure accuracy and performance. Calibration may be ordered using the CAL-PD recalibration service available below. Please contact technical support for more information.

Thorlabs also offers a Microscope Slide Sensor Head with a thermal sensor; the full presentation can be found here.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S170C Support Documentation
S170CCustomer Inspired! Microscope Slide Power Sensor, 350 - 1100 nm, 10 nW - 150 mW
$1,324.53
Today
S171C Support Documentation
S171CCustomer Inspired! Microscope Slide Power Sensor, 400 - 1100 nm, 1 nW - 15 mW
$1,324.53
Today
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Microscope Slide Thermal Power Sensor

Item #a S175C
Sensor Image
(Click Image to Enlarge)
Microscope Thermal Sensor
Active Detector Area 18 mm x 18 mm
Wavelength Range 0.3 - 10.6 µm
Power Range 100 µW - 2 W
Detector Type Thermal Surface Absorber (Thermopile)
Linearity ±0.5%
Resolutionb 10 µW
Measurement Uncertaintyc ±3% @ 1064 nm;
±5% @ 300 nm - 10.6 µm
Response Time 3 s
(<2 s from 0 to 90%)
Housing Dimensions 76 mm x 25.2 mm x 4.8 mm
(2.99" x 0.99" x 0.19") 
Cable Length 1.5 m
Housing Features Integrated Glass Cover
Engraved Laser Target on Back
Post Mounting N/A
Cage Mounting N/A
Aperture Thread N/A
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM102, PM102A, PM102U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Measured with the legacy PM200 Touch Screen Console
  • Beam Diameter: >1 mm

Click to Enlarge
Typical absorption curve for the S175C (glass and absorber). Note that this curve is representative, and the actual absorption across the spectrum will vary from unit to unit.
Microscope Thermal Sensor
Click to Enlarge

The back of the S175C housing is engraved with the sensor specifications and a target for centering the beam on the sensor.
  • Wavelength Range: 300 nm - 10.6 µm
  • Sensitive to Optical Powers from 100 µW to 2 W
  • Designed to Measure Optical Power in the Sample Plane of a Microscope
  • Thermal Sensor with 18 mm x 18 mm Active Area
  • 76.0 mm x 25.2 mm Footprint Matches Standard Microscope Slides
  • Information Stored in Connector
    • Sensor Data
    • NIST- and PTB-Traceable Calibration Data
  • See the Full Web Presentation for More Information

The S175C Microscope Slide Thermal Power Sensor Head is designed to measure the power at the sample in microscopy setups. The thermal sensor can detect wavelengths between 300 nm and 10.6 µm at optical powers between 100 µW and 2 W. The sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.

The thermal sensor has an 18 mm x 18 mm active area and is contained in a sealed housing behind a glass cover. An immersion medium (water, glycerol, oil) may be placed over the glass cover plate.

As seen in the image to the right, the bottom of the sensor housing features a laser-engraved target to aid in aligning and focusing the beam. In standard microscopes, the target can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the trans-illumination lamp and align the target on the detector housing with the beam; this will center the sensor in front of the objective.

Sensor specifications and the NIST- and PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. We recommend yearly recalibration to ensure accuracy and performance. Calibration may be ordered using the CAL-THPY recalibration service available below. Please contact technical support for more information.

Thorlabs also offers a Microscope Slide Sensor Head with a photodiode sensor for low-power, high-resolution measurements; the full presentation may be found here.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S175C Support Documentation
S175CCustomer Inspired! Microscope Slide Thermal Power Sensor, 300 nm - 10.6 µm, 100 µW - 2 W
$1,324.53
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Integrating Sphere Photodiode Power Sensors

S142C and S140-BFA Bare Fiber Adapter
Click to Enlarge
S142C and S140-BFA Bare Fiber Adapter (Sold Separately)
S142C and S120-FC Fiber Adapter
Click to Enlarge

S142C with the S120-FC Fiber Adapter (Included)
  • For Measurements Independent of Beam Shape and Entrance Angle
  • Integrating Sphere Design Acts as a Diffuser with Minimal Power Loss
  • Ø5 mm, Ø7 mm, Ø12 mm, or Ø22 mm Input Sensor Aperture
  • Spheres with Apertures ≤Ø12 mm Include a Removable S120-FC Fiber Adapter (FC/PC and FC/APC)  
  • Fiber Adapters for Terminated and Bare Fiber (See Table Below) are Compatible with Spheres with Apertures ≤Ø12 mm
  • See the Full Web Presentation for More Information

These Integrating Sphere Photodiode Power Sensors are the ideal choice for power measurements independent of beam uniformity, divergence angle, beam shape, or entrance angle, making them excellent for use with fiber sources and off-axis free space sources. They feature enhanced shielding to avoid electromagnetic interference and an over-temperature alert sensor to warn against damage and measurement errors due to overheating of the sensor.

Our integrating spheres are designed for wavelength ranges from the visible through the NIR. Sensor heads for use between 350 and 2500 nm use a single Ø1" or Ø2" sphere made from Zenith® PTFE and feature a black housing to minimize reflected light around the entrance aperture. These sensors use either a silicon photodiode for detection in the 350 - 1100 nm range or an InGaAs photodiode for detection in the 800 - 1700 nm, 900 - 1650 nm, or 1200 - 2500 nm wavelength range.

The S180C integrating sphere for 2.9 - 5.5 µm uses two connected, gold-plated Ø20 mm spheres, with an entrance port in the first sphere and a port for the MCT (HgCdTe) detector located in the second sphere. Compared to single-sphere designs, the two-sphere configuration improves device sensitivity by minimizing the internal sphere surface area while still effectively shielding the detector from direct illumination. This design reduces the effect of input angle, divergence, and beam shape on the measurement result by effectively shielding the photodiode without the use of a baffle or other shielding mechanism.

S142CL and S145CL Baffle
Click to Enlarge
A baffle on the S142CL and S145CL spheres blocks light from directly hitting the detector.

The integrating spheres with Ø5 mm, Ø7 mm, or Ø12 mm apertures feature large active detector areas, and externally SM1-threaded (1.035"-40) adapters for compatibility with the included S120-FC fiber adapter. Because of the large active detector areas of these sensors, the included S120-FC fiber adapter can be used with FC/PC- or FC/APC-terminated fiber. The externally SM1-threaded adapter can be removed using a size 1 screwdriver to place components closer to the window.

The S142CL and S145CL integrating spheres feature a large Ø22 mm input aperture and a baffle within the sphere which prevents direct illumination of the photodiode. The large aperture and baffle enable measurements of large and divergent beams, such as those emitted from LED and VCSEL light sources. The input face of the detectors have four 4-40 threads for mounting 30 mm cage system components. Additionally, insertion of a second or third port in the sensor head is possible on request, please contact Tech Support for details.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. NIST- or PTB-traceable data is stored in the sensor connector. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors, Item # CAL-IRPD for InGaAs sensors, and Item # CAL-MIRPD for extended InGaAs or MCT sensors).

Item #a S140C S142C S142CL S144C S145C S145CL S146C S148C S180C
Sensor Image
(Click the Image
to Enlarge)
S140C S142C S142CL S144C S145C S145CL S146C S144C Mid-IR Detector
Aperture Size Ø5 mm Ø12 mm Ø22 mm Ø5 mm Ø12 mm Ø22 mm Ø12 mm Ø5 mm Ø7 mm
Wavelength Range 350 - 1100 nm 400 - 1100 nm 800 - 1700 nm 900 - 1650 nm 1200 - 2500 nm 2.9 µm - 5.5 µm
Power Range 1 µW - 500 mW 1 µW - 5 W 10 µW - 5 W 1 µW - 500 mW 1 µW - 3 W 10 µW - 3 W 10 µW - 20 W 1 µW - 1 W 1 µW - 3 W
Detector Type Si Photodiode Si Photodiode with Baffle InGaAs Photodiode InGaAs Photodiode with Baffle InGaAs Photodiode Extended InGaAs Photodiode MCT (HgCdTe)
Photodiode
Linearity ±0.5%
Resolutionb 1 nW 10 nW 1 nW 10 nW 1 nW 10 nW
Measurement
Uncertaintyc,d
±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)
±3%
(440 - 980 nm)
±5%
(400 - 439 nm)
±7%
(981 - 1100 nm)
±5%
Responsivitye
(Click for Plot)

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data
Integrating Sphere
Material 
(Size)
Zenith® PTFE
(Ø1")
Zenith® PTFE
(Ø2")
Zenith® PTFE
(Ø1")
Zenith® PTFE
(Ø2")
Zenith® PTFE
(Ø1")
Gold Plating
(Two Ø20 mm Spheres)
Head Temperature
Measurement
NTC Thermistor 4.7 kΩ
Housing
Dimensions
Ø45 mm x 30.5 mm 70 mm x 74 mm x 70 mm Ø45 mm x 30.5 mm 70 mm x 74 mm x 70 mm Ø45 mm x 30.5 mm 59.0 mm x 50.0 mm x
28.5
Active Detector Area 3.6 mm x 3.6 mm Ø2 mm Ø3 mm Ø1 mm Ø1 mm 1 mm x 1 mm
Cable Length 1.5 m
Mounting Thread Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Thread, Post Not Included Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Thread, Post Not Included Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread Included Adapter with SM1 (1.035"-40) External Thread None Included Adapter with SM1 (1.035"-40) External Thread None Included Adapter with SM1 (1.035"-40) External Thread
Compatible Fiber
Adapters
S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)
None S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)
None S120-FC (Included)
S120-FC2, S120-APC2, S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, S120-25, and S140-BFA (Not Included)
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Measured with PM100D console in low bandwidth setting.
  • Beam diameter > 1 mm
  • Uncertainties for S142CL and S145CL are valid at a temperature of 24 °C ± 2 °C.
  • All sensor responsivities are calibrated to a NIST-traceable source with measurements taken in 5 nm intervals except for the S180C. See the S180C responsivity graph to see the NIST-traceable reference points.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S140C Support Documentation
S140CIntegrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 1 µW - 500 mW
$818.48
Today
S142C Support Documentation
S142CIntegrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 1 µW - 5 W
$1,135.65
Today
S142CL Support Documentation
S142CLCustomer Inspired! Large Aperture Integrating Sphere Photodiode Power Sensor, Si, 400 - 1100 nm, 10 µW - 5 W
$1,224.00
Today
S144C Support Documentation
S144CIntegrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 µW - 500 mW
$961.04
Today
S145C Support Documentation
S145CIntegrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 µW - 3 W
$1,179.61
Today
S145CL Support Documentation
S145CLCustomer Inspired! Large Aperture Integrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 10 µW - 3 W
$1,269.90
Lead Time
S146C Support Documentation
S146CIntegrating Sphere Photodiode Power Sensor, InGaAs, 900 - 1650 nm, 10 µW - 20 W
$1,179.61
Today
S148C Support Documentation
S148CCustomer Inspired! Integrating Sphere Photodiode Power Sensor, Extended InGaAs, 1200 - 2500 nm, 1 µW - 1 W
$987.17
Today
S180C Support Documentation
S180CIntegrating Sphere Photodiode Power Sensor, MCT (HgCdTe), 2.9 - 5.5 µm, 1 µW - 3 W
$4,291.96
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Fiber Photodiode Power Sensors

S150C and PM100D
Click to Enlarge

PM100D with S150C Sensor and FC Cable
  • For Fiber-Based Optical Power Measurements
  • Compact Sensor Integrated into the Connector
  • Integrated Design for use in the Field and Lab
  • Includes PM20-FC Fiber Adapter
    • S150C and S151C Sensors also Include PM20-SMA Adapters
    • Compatible FC/APC, LC/PC, SC/PC, and ST®* Fiber Adapters Also Available (See Table Below)
  • See the Full Web Presentation for More Information

The S15xC Compact Fiber Photodiode Power Sensor is designed to take power measurements from a wide variety of fiber coupled sources. The compact sensor, integrated into the power meter connector, features a unique integrated design housing the photodiode sensor, fiber coupling, and NIST-traceable data. Standard FC (and SMA - S150C and S151C) connectors are easily interchanged with a variety of standard fiber connectors.

Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors and Item # CAL-IRPD for InGaAs sensors).

*ST® is a registered trademark of Lucent Technologies, Inc.

Item #a S150C S151C S154C S155C
Sensor Image
(Click the Image to Enlarge)

S150C

S151C

S152C

S153C

Included Connectors FCb & SMA FCb
Wavelength Range 350 - 1100 nm 400 - 1100 nm 800 - 1700 nm
Power Range 100 pW to 5 mW
(-70 dBm to +7 dBm)
1 nW to 20 mW
(-60 dBm to +13 dBm)
100 pW to 3 mW
(-70 dBm to +5 dBm)
1 nW to 20 mW
(-60 dBm to +13 dBm)
Detector Type Si Photodiode InGaAs Photodiode
Linearity ±0.5%
Resolutionc 10 pW (-80 dBm) 100 pW (-70 dBm) 10 pW (-80 dBm) 100 pW (-70 dBm)
Measurement Uncertaintyd ±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)
±3% (440 - 980 nm)
±5% (400 - 439 nm)
±7% (981 - 1100 nm)
±5%
Responsivityf (Click for Details)
Raw Data

Raw Data

Raw Data

Raw Data
Coating/Diffuser N/A Absorptive ND (Schott NG3) N/A
Head Temperature Measuremente NTC Thermistor 3 kΩ
Aperture Thread External SM05 (0.535"-40)
Fiber Adapters Included: PM20-FC and PM20-SMA
Optional: PM20-FC2, PM20-APC2, PM20-APC, PM20-ST,
PM20-SC, and PM20-LC
Included: PM20-FC
Optional: PM20-FC2, PM20-APC2, PM20-APC, PM20-SMA
PM20-STPM20-SC, and PM20-LC
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Because of the large active detector area of these sensors, the included PM20-FC fiber adapter can be used with both FC/PC- and FC/APC-terminated fiber. 
  • Measured with PM100D console in low bandwidth setting.
  • For a beam diameter > 1 mm incident on the active area of the detector (i.e. at the detector surface after the light has exited the fiber and passed through any internal optics).
  • This specification is valid for devices with serial numbers 1203xxx and higher. For older versions, please contact technical support.
  • All sensor responsivities are calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S150C Support Documentation
S150CCompact Fiber Photodiode Power Sensor, Si, 350 - 1100 nm, 100 pW - 5 mW
$356.39
Today
S151C Support Documentation
S151CCompact Fiber Photodiode Power Sensor, Si, 400 - 1100 nm, 1 nW - 20 mW
$406.28
Today
S154C Support Documentation
S154CCompact Fiber Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 100 pW - 3 mW
$511.99
Today
S155C Support Documentation
S155CCompact Fiber Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 1 nW - 20 mW
$586.84
7-10 Days
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High-Resolution Thermal Power Sensors

Item #a S401C S405C
Sensor Image
(Click the Image to Enlarge)
S401C S405C
Wavelength Range 190 nm - 20 µm 190 nm - 20 µm
Optical Power Range 10 µW - 1 W (3 Wb) 100 µW - 5 W 
Input Aperture Size Ø10 mm Ø10 mm
Active Detector Area
10 mm x 10 mm 10 mm x 10 mm
Max Optical Power Density 500 W/cm² (Avg.) 1.5 kW/cm² (Avg.)
Detector Type Thermal Surface Absorber (Thermopile)
with Background Compensation
Thermal Surface Absorber (Thermopile)
Linearity ±0.5% ±0.5%
Resolutionc 1 µW 5 µW
Measurement Uncertaintyd ±3% @ 1064 nm
±5% @ 190 nm - 10.6 µm
±3% @ 1064 nm 
±5% @ 250 nm - 17 µm
Response Timee 1.1 s 1.1 s
Cooling Convection (Passive)
Housing Dimensions
(Without Adapter)
33.0 m x 43.0 mm x 15.0 mm
(1.30" x 1.69" x 0.59")
40.6 mm x 40.6 mm x 16.0 mm
(1.60" x 1.60" x 0.63")
Temperature Sensor
(In Sensor Head)
NTC Thermistor NTC Thermistor
Cable Length 1.5 m
Post Mounting Universal 8-32 / M4 Taps
(Post Not Included)
Universal 8-32 / M4 Taps
(Post Not Included)
30 mm Cage Mounting - Two 4-40 Tapped Holes &
Two Ø6 mm Through Holes
Aperture Threads - Internal SM05
Accessories Externally SM1-Threaded Adapter
Light Shield with Internal SM05 Threading
Externally SM1-Threaded Adapter
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM102, PM102A, PM102U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • For conditions of intermittent use, with a maximum exposure time of 20 minutes for the S401C. The S405C saturates for optical input powers >5 W.
  • Measurement taken with the legacy PM200 console for the S401C and the PM400 console for the S405C. In all cases, the acceleration circuit was switched off. Resolution performance will be similar with our other power meter consoles.
  • Defined as the measurement uncertainty during calibration at the specified wavelengths for a beam diameter > 1 mm. The ±3% specification was determined by laser calibration, and the ±5% specification was determined through spectral calibration, in which values were interpolated using the laser calibration data and the absorption curve for the absorber. Calibration can be performed at 10.6 µm upon request. 
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s). See the Operation tab for additional information.
  • High Resolution of 1 μW or 5 μW
  • S401C and S405C Have Thermistors Used to Monitor Temperature of Sensor Head
  • S401C: Background Compensation for Low-Drift Measurements
  • S405C: Accommodates Average Optical Power Densities up to 1.5 kW/cm²
  • See the Full Web Presentation for More Information

Click to Enlarge

S401C Thermal Sensor with Included Light Shield

Thorlabs offers two broadband thermal power sensors designed to measure low optical power sources with high resolution. Each thermal sensor's broadband coating has a flat spectral response over a wide wavelength range, as shown in the plot below.

An aperture size of Ø10 mm allows for easy alignment and measurement of large-spot-size laser sources. For easy integration with Thorlabs' lens tube systems and SM1-threaded (1.035"-40) fiber adapters, each sensor has either external SM1 threading or includes an externally SM1-threaded adapter.

The S401C uses active thermal background compensation to provide low-drift power measurements. This is implemented through the use of two similar sensor circuits. One sensor circuit is the type all thermal power sensors share: it measures heat flow from light absorber to heat sink. The other sensor circuit monitors the ambient temperature. It is located within the housing and measures heat flow from heat sink towards the absorber. The measurements of the two sensor circuits are subtracted, which minimizes the effect of thermal drift on the laser power measurement. (For information about how the external thermal disturbances can affect thermal power sensor readings, see the Operation tab.) The broadband coating used on this thermal sensor offers high absorption at wavelengths between 0.19 and 20 µm (shown in the graph), which makes the sensor ideal for use with aligning and measuring Mid-IR Quantum Cascade Lasers (QCLs). The included, internally SM05-threaded (0.535"-40) light shield is shown in the photo to the right.

The S405C has internal SM05 (0.535"-40) threading that is directly compatible with SM05 lens tubes, and it can also connect directly to Thorlabs' 30 mm Cage Systems.

Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-THPY).

Low Power High Resolution Thermal Sensor Absorption
Click to Enlarge

The S405 shares the same absorption curve with the S415C, S425C, and S245C-L. (All are sold below.)
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S401C Support Documentation
S401CThermal Power Sensor Head, Surface Absorber, 0.19 - 20 µm, 10 µW - 1 W, Ø10 mm
$862.43
Today
S405C Support Documentation
S405CThermal Power Sensor Head, Surface Absorber, 0.19 - 20 µm, 100 µW - 5 W, Ø10 mm
$819.90
Today
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Thermal Sensors for Max Powers of 10 W

Item #a S415C S425C
Sensor Image
(Click Image to Enlarge)
S415C S425C
Wavelength Range 190 nm - 20 µm 190 nm - 20 µm
Optical Power Range 2 mW - 10 W (20 Wb) 2 mW - 10 W (20 Wb)
Input Aperture Size Ø15 mm Ø25.4 mm
Active Detector Area
Ø15 mm Ø27 mm
Max Optical
Power Density 
1.5 kW/cm² (Avg.) 1.5 kW/cm² (Avg.)
Detector Type Thermal Surface Absorber (Thermopile)
Linearity ±0.5% ±0.5%
Resolutionc 100 µW 100 µW
Measurement
Uncertaintyd
±3% @ 1064 nm
±5% @ 250 nm - 17 µm
±3% @ 1064 nm
±5% @ 250 nm - 17 µm
Response Timee 0.6 s 0.6 s
Cooling Convection (Passive)
Housing Dimensions
(Without Adapter)
50.8 mm x 50.8 mm x 35.0 mm
(2.00" x 2.00" x 1.38")
50.8 mm x 50.8 mm x 35.0 mm
(2.00" x 2.00" x 1.38")
Temperature Sensor
(In Sensor Head)
NTC Thermistor
Cable Length 1.5 m
Post Mounting Universal 8-32 / M4 Taps
(Post Not Included)
Universal 8-32 / M4 Taps
(Post Not Included)
30 mm Cage Mounting - -
Aperture Threads Internal SM1 Internal SM1
Removable Heatsink Yes Yes
Accessories Externally SM1-Threaded Adapter Externally SM1-Threaded Adapter
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM102, PM102A, PM102U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Two Minute Maximum Exposure Time
  • Measurement taken with the PM400 with the acceleration circuit switched off. Resolution performance will be similar with our other power meter consoles.
  • Defined as the measurement uncertainty during calibration at the specified wavelengths for a beam diameter > 1 mm. The ±3% specification was determined by laser calibration, and the ±5% specification was determined through spectral calibration, in which values were interpolated using the laser calibration data and the absorption curve for the absorber. Calibration can be performed at 10.6 µm upon request.
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s). As the natural response times of the S415C and S425C are fast, these do not benefit from accelerated measurements and this function cannot be enabled. See the Operation tab for additional information.
  • 100 µW Optical Power Resolution
  • Thermistors Used to Monitor Temperature of Sensor Head
  • Removable Heat Sinks Included
  • See the Full Web Presentation for More Information

These thermal power sensors are designed for general broadband power measurements of low and medium power light sources. All include an externally SM1-threaded (1.035"-40) adapter, with threading concentric with the input aperture. The adapters are useful for mounting Ø1" Lens Tubes and Fiber Adapters (available below). The apertures of the S415C and S425C have internal SM1 threading.

These sensors operate with fast (<0.6 s) natural response times, and their removable heat sinks provide a high degree of flexibility to those interested in integrating them into custom setups or replacing the included heat sink with one that is water or fan cooled. If replacing the heat sink, please note that the replacement must provide heat dissipation adequate for the application.

Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-THPY).

Thermal Sensor Absorption Mid-Power Thermal
Click to Enlarge

The absorption curves of each of the thermal power sensors designed for use with low and medium power optical sources.
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S415C Support Documentation
S415CThermal Power Sensor Head, Surface Absorber, 0.19 - 20 µm, 2 mW - 10 W, Ø15 mm
$845.52
Today
S425C Support Documentation
S425CThermal Power Sensor Head, Surface Absorber, 0.19 - 20 µm, 2 mW - 10 W, Ø25.4 mm
$922.39
Today
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Thermal Sensors for Max Powers from 40 W to 200 W

Thermal Sensor Absorption Mid-Power Thermal
Click to Enlarge

The absorption curves of each of the thermal power sensors designed for use with low and medium power optical sources.
  • Thermistors Used to Monitor Temperature of Sensor Head
  • S322C Has 4-40 Taps for Use with Our 30 mm Cage Systems
  • S350C Has Ø40 mm Aperture Well Suited to Excimer and Other Lasers with Large Spot Sizes
  • S425C-L Features Removable Heat Sink
  • S322C is Fan Cooled with an Optical Power Range up to 200 W
  • See the Full Web Presentation for More Information

These thermal power sensors are designed for general broadband power measurements of low and medium power light sources. With the exception of the S350C, all include an adapter with external SM1 (1.035"-40) threading concentric with the input aperture. This allows the sensors to be integrated into existing Ø1" lens tube systems in addition to being compatible with fiber adapters (available below). The aperture of the S425C-L has internal SM1 threading.

The S425C-L operates with a fast (<0.6 s) natural response time and has a removable heat sink, which provides a high degree of flexibility to those interested in integrating them into custom setups or replacing the included heat sink with one that is water or fan cooled. If replacing the heat sink, please note that the replacement must provide heat dissipation adequate for the application.

Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-THPY).


Item #a S350C S425C-L S322C
Sensor Image
(Click Image to Enlarge)
S350C S425C-L S322C
Wavelength Range 190 nm- 1.1 µm, 10.6 µm 190 nm - 20 µm 250 nm - 11 µm
Optical Power Range 10 mW - 40 W (60 Wb) 2 mW - 50 W (75 Wb) 100 mW - 200 W (250 Wb)
Input Aperture Size Ø40 mm Ø25.4 mm Ø25 mm
Active Detector Area
Ø40 mm Ø27 mm Ø25 mm
Max Optical Power Density 2 kW/cm² (Avg.) 1.5 kW/cm² (Avg.) 4 kW/cm² (Avg., CO2
Detector Type Thermal Surface Absorber (Thermopile)
Linearity ±1% ±0.5% ±1%
Resolutionc 1 mW 100 µW 5 mW
Measurement Uncertaintyd ±3% @ 1064 nm
±5% @ 190 nm - 1100 nm, 10.6 µm
±3% @ 1064 nm 
±5% @ 250 nm - 17 µm
±3% @ 1064 nm
±5% @ 266 nm - 1064 nm
Response Timee 9 s
(1 s from 0 to 90%)
0.6 s 5 s
(1 s from 0 to 90%)
Cooling Convection (Passive) Forced Air with Fanf
Housing Dimensions
(Without Adapter, if Applicable)
100 mm x 100 mm x 54.2 mm
(3.94" x 3.94" x 2.13")
100.0 mm x 100.0 mm x 58.0 mm
(3.94" x 3.94" x 2.28")
100 mm x 100 mm x 86.7 mm
(3.94" x 3.94" x 3.41")
Temperature Sensor
(In Sensor Head)
NTC Thermistor
Cable Length 1.5 m
Post Mounting M6 Threaded Taps, Includes
Ø1/2" Post, 75 mm Long
Universal 8-32 / M4 Taps
(Post Not Included)
M6 Threaded Taps, Includes
Ø1/2" Post, 75 mm Long
30 mm Cage Mounting - - Four 4-40 Tapped Holes
Aperture Threads - Internal SM1 -
Removable Heatsink - Yes -
Accessories - Externally SM1-Threaded Adapter Externally SM1-Threaded Adapter
Compatible Consoles PM400, PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM102, PM102A, PM102U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Two Minute Maximum Exposure Time
  • Measurement taken with the PM100D console, except for the S425C-L in which the PM400 was used. In all cases, the acceleration circuit was switched off. Resolution performance will be similar with our other power meter consoles.
  • Defined as the measurement uncertainty during calibration at the specified wavelengths for a beam diameter > 1 mm. The ±3% specification was determined by laser calibration, and the ±5% specification was determined through spectral calibration, in which values were interpolated using the laser calibration data and the absorption curve for the absorber. Calibration can be performed at 10.6 µm upon request.
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s) for the S350C and S322C. As the natural response time of the S425C-L is fast, the S425C-L does not benefit from acceleration and this function cannot be enabled. See the Operation tab for additional information.
  • 12 VDC power supply is included.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
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S350C Support Documentation
S350CThermal Power Sensor Head, Surface Absorber, 0.19 - 1.1 µm and 10.6 µm, 10 mW - 40 W, Ø40 mm
$1,275.82
Today
S425C-L Support Documentation
S425C-LThermal Power Sensor Head, Surface Absorber, 0.19 - 20 µm, 2 mW - 50 W, Ø25.4 mm
$999.25
Today
S322C Support Documentation
S322CThermal Power Sensor Head, Surface Absorber, 0.25 - 11 µm, 100 mW - 200 W, Ø25 mm, Fan Cooled
$1,579.94
Today
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Thermal Sensors for High Max Power Density Laser Pulses

Item #a S370C S470C
Sensor Image
(Click the Image to Enlarge)
S370C S470C
Wavelength Range 400 nm - 5.2 µm 250 nm - 10.6 µm
Optical Power Range 10 mW - 10 W (15 Wb) 100 µW - 5 W (Pulsed and CW)
Input Aperture Size Ø25 mm Ø15 mm
Active Detector Area
Ø25 mm Ø16 mm
Max Optical Power Density 35 W/cm² (Avg.); 100 GW/cm² (Peak)
Detector Type Thermal Volume Absorber (Thermopile)
Linearity ±1% ±0.5%
Resolutionc 250 µW 10 µW
Measurement Uncertaintyd ±3% @ 1064 nm 
±5% @ 400 nm - 1064 nm
±3% @ 1064 nm 
±5% @ 250 nm - 10.6 µm
Response Timee 45 s
(3 s from 0 to 90%)
6.5 s
(<2 s from 0 to 90%)
Cooling Convection (Passive)
Housing Dimensions
(Without Adapter, if Applicable)
75 mm x 75 mm x 51.2 mm
(2.95" x 2.95" x 2.02")
45.0 mm x 45.0 mm x 18.0 mm
(1.77" x 1.77" x 0.71")
Temperature Sensor
(In Sensor Head)
N/A N/A
Cable Length 1.5 m
Post Mounting M6 Threaded Taps, Includes
Ø1/2" Post, 75 mm Long
Universal 8-32 / M4 Tap
(Post Not Included)
30 mm Cage Mounting Four 4-40 Tapped Holes -
Aperture Threads - External SM1
Accessories Externally SM1-Threaded Adapter -
Compatible Consoles PM400PM100D, PM100A, and PM5020
Compatible Interfaces PM101, PM101A, PM101RPM101U, PM102, PM102A, PM102U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • Two Minute Maximum Exposure Time
  • Measurement taken with the PM100D console for the S370C and with the legacy PM200 for the S470C. In all cases, the acceleration circuit was switched off. Resolution performance will be similar with our other power meter consoles.
  • Defined as the measurement uncertainty during calibration at the specified wavelengths for a beam diameter > 1 mm. The ±3% specification was determined by laser calibration, and the ±5% specification was determined through spectral calibration, in which values were interpolated using the laser calibration data and the absorption curve for the absorber. Calibration can be performed at 10.6 µm upon request.
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <2 s). See the Operation tab for additional information.
  • Designed for Optical Power Measurements of Nd:YAG Lasers
  • Ideal for Applications with High Peak Pulse Powers
  • S370C: Ø25 mm Aperture for Large-Spot-Size Beams
  • S470C: High-Sensitivity for High-Peak-Power Pulses with Low Average Power
  • See the Full Web Presentation for More Information

The S370C and S470C Thermal Sensors are designed to measure short and highly energetic laser pulses. All of these units are post-mountable for free-space applications and feature NIST-traceable data stored in the sensor connector.

These thermal power sensors are unique in that they have thermal volume absorbers, where our other thermal power sensors have thermal surface absorbers. The volume absorber consists of a Schott glass filter. Incident pulses are absorbed and the heat is distributed throughout the volume. In this way, pulses that would have damaged the absorption coating of a thermal surface absorber are safely measured by these thermal volume absorbers. 

The S370C features a large Ø25 mm aperture ideal for large-spot-size beams, and it is compatible with average powers from 10 mW to 10 W (CW).

In comparison, the S470C is faster, as the glass absorber volume is reduced and other design parameters have been optimized for speed. This results in a different optical power range, with the ability to measure powers down to 100 µW. The Ø15 mm aperture is of the S470C is smaller, and it has a lower max average power of 5 W. Its 10 µW resolution is better than the 250 µW resolution of the S370C.

Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-THPY).

Thermal Sensor Absorption Pulsed Lasers
Click to Enlarge

This absorption curve is shown over a broader wavelength range than the sensors' operating ranges. See the table for the operating wavelength range of each sensor.
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S370C Support Documentation
S370CThermal Power Sensor Head, Volume Absorber, 0.4 - 5.2 µm, 10 mW - 10 W, Ø25 mm
$1,324.53
7-10 Days
S470C Support Documentation
S470CThermal Power Sensor Head, Volume Absorber, 0.25 - 10.6 µm, 100 µW - 5 W, Ø15 mm
$1,348.30
Today
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Standard Pyroelectric Energy Sensors

Item #a ES111C ES120C ES145C
Sensor Image
(Click the Image to Enlarge)
ES111C ES120C ES145C
Input Aperture Size Ø11 mm Ø20 mm Ø45 mm
Wavelength Range 0.185 - 25 µm
Energy Range 10 µJ - 150 mJ 100 µJ - 500 mJ 500 µJ - 2 J
Max Repetition Rateb 40 Hz 30 Hz 30 Hz
Max Power Density
(Pulse Width)
8 MW/cm2
(10 ns Pulse)
Max Pulse Energy Density
(Pulse Width)
0.15 J/cm2
(1 µs Pulse)
Coating (Click for Plot) Black Broadband
Resolution 100 nJ 1 µJ 1 µJ
Linearity ±1%
Measurement Uncertainty ±5% @ 190 nm - 25 µm ±5% @ 185 nm - 25 µm ±5% @ 185 nm - 25 µm
Housing Dimensions Ø36 mm x 16 mm Ø50 mm x 18 mm Ø75 mm x 21 mm
Active Detector Area 95.0 mm2 314.2 mm2 1590.4 mm2
Cable Length 1.5 m (60")
Post Mounting 8-32 Mounting Thread, 8-32 and M4 Insulating Adapters Included
Cage Mounting N/A Four 4-40 Threaded Holes
for 30 mm Cage Systems
N/A
Compatible Consoles PM400, PM100D, and PM5020
Compatible Interfaces PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • @ 1 MΩ Load Resistor
  • For General Purpose Optical Pulse Measurements
  • Black Broadband Coating with Flat Response Over a Wide Wavelength Range
  • Ø11 mm, Ø20 mm, or Ø45 mm Sensor Area
  • BNC Connector for Oscilloscope Use
  • Each Sensor Includes:
    • C-Series Connector Adapter for Use with Compatible Thorlabs' Consoles (See Table to the Right or the Console Selection Tab)
    • Two Electrically Isolating Post Adapters (One Imperial and One Metric)
  • See the Full Web Presentation for More Information

The ES1xxC Standard Pyroelectric Sensors are designed to measure pulsed coherent and incoherent sources. Pyroelectric sensors are not suited for CW measurements, as they convert energy from light pulses into voltage pulses. The black broadband coating on these sensors is ideal for low power, wavelength-independent energy measurements due to its flat absorption profile (see the table to the right). Large sensor areas of Ø11 mm, Ø20 mm, or Ø45 mm aid with easy alignment. The sensors can be connected directly to an oscilloscope with a 1 MΩ input resistance via the BNC connector. To accommodate higher repetition rates when connected to an oscilloscope, the load resistance can be reduced. Each energy sensor includes a BNC to C-Series adapter that contains NIST- and PTB-traceable calibration data.

Thorlabs offers a recalibration service for these energy sensors, which can be ordered below (see Item # CAL-THPY).

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
ES111C Support Documentation
ES111CPyroelectric Energy Sensor, Black Coating, 0.185 - 25 µm, 150 mJ, Ø11 mm, 40 Hz
$1,506.27
Today
ES120C Support Documentation
ES120CPyroelectric Energy Sensor, Black Coating, 0.185 - 25 µm, 500 mJ, Ø20 mm, 30 Hz
$1,568.06
Today
ES145C Support Documentation
ES145CPyroelectric Energy Sensor, Black Coating, 0.185 - 25 µm, 2 J, Ø45 mm, 30 Hz
$1,810.39
Today
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High-Energy Pyroelectric Energy Sensors

ES220C with a 30 mm Cage System
Click to Enlarge

ES220C Sensor Mounted in a 30 mm Cage System
  • For High-Energy Optical Pulse Measurements Up to 15 J
  • Ceramic Coating with High Damage Threshold for High-Energy-Density (Up to 0.45 J/cm2) Lasers
  • Ø20 mm or Ø45 mm Sensor Area
  • BNC Connector for Oscilloscope Use
  • Each Sensor Includes:
    • C-Series Connector Adapter for Use with Compatible Thorlabs' Consoles (See Table Below or the Console Selection Tab)
    • Two Electrically Isolating Post Adapters (One Imperial and One Metric)
  • See the Full Web Presentation for More Information

The ES2xxC High-Energy Pyroelectric Sensors are designed to measure pulsed coherent and incoherent sources. Pyroelectric sensors are not suited for CW measurements, as they convert energy from light pulses into voltage pulses. A ceramic coating is used for high energy measurements as high as 3 J for the ES220C sensor or 15 J for the ES245C sensor. Large Ø20 mm or Ø45 mm sensor areas aid with easy alignment. The sensors can be connected directly to an oscilloscope with a 1 MΩ input resistance via the BNC connector. To accommodate higher repetition rates when connected to an oscilloscope, the load resistance can be reduced. Each energy sensor also includes a BNC to C-Series adapter that contains NIST- and PTB-traceable calibration data.

Thorlabs offers a recalibration service for these energy sensors, which can be ordered below (see Item # CAL-THPY).

Item #a ES220C ES245C
Sensor Image
(Click the Image to Enlarge)
ES220C ES245C
Input Aperture Size Ø20 mm Ø45 mm
Wavelength Range 0.185 - 25 µm
Energy Range 500 µJ - 3 J 1 mJ - 15 J
Max Repetition Rateb 30 Hz 30 Hz
Max Power Density
(Pulse Width)
65 MW/cm2
(7 ns Pulse @ 355 nm)
Max Pulse Energy Density
(Pulse Width)
0.45 J/cm2
(7 ns Pulse @ 355 nm)
Coating (Click for Plot) Ceramic
Resolution 25 µJ 50 µJ
Linearity ±1%
Measurement Uncertainty ±5% @ 0.185 - 25 µm
Housing Dimensions Ø50 mm x 18 mm Ø75 mm x 21 mm
Active Detector Area 314.2 mm2 1590.4 mm2
Cable Length 1.5 m (60")
Post Mounting 8-32 Mounting Thread, 8-32 and M4 Insulating Adapters Included
Cage Mounting Four 4-40 Threaded Holes for 30 mm Cage Systems N/A
Compatible Consoles PM400, PM100D, and PM5020
Compatible Interfaces PM103, PM103APM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • @ 1 MΩ Load Resistor
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
ES220C Support Documentation
ES220CPyroelectric Energy Sensor, Ceramic Coating, 0.185 - 25 µm, 3 J, Ø20 mm, 30 Hz
$1,882.86
Today
ES245C Support Documentation
ES245CPyroelectric Energy Sensor, Ceramic Coating, 0.185 - 25 µm, 15 J, Ø45 mm, 30 Hz
$2,186.95
Today
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Fast Pyroelectric Energy Sensors

Item #a ES308C ES312C ES412C
Sensor Image
(Click the Image to Enlarge)
ES308C ES312C ES412C
Input Aperture Size Ø8 mm Ø12 mm Ø12 mm
Wavelength Range 0.185 - 25 µm 0.185 - 25 µm 0.185 - 2.5 µm
Energy Range 500 µJ - 1 J 100 µJ - 1 J 50 µJ - 500 mJ
Max. Repetition Rateb 1 kHz 250 Hz 2 kHz
Max Power Density
(Pulse Width)
8 MW/cm2
(10 ns Pulse)
5 MW/cm2
(10 ns Pulse)
Max Pulse Energy Density
(Pulse Width)
80 mJ/cm2
(10 ns Pulse)
50 mJ/cm2
(10 ns Pulse)
Coating
(Click for Plot)
Black Broadband Metal
Resolution 5 µJ 1 µJ 1 µJ
Linearity ±1%
Measurement Uncertainty ±5% @ 0.185 - 25 µm ±5% @ 0.185 - 2.5 µm
Housing Dimensionsc Ø38 mm x 15 mm Ø38 mm x 15 mm Ø38 mm x 15 mm
Active Detector Area 50.3 mm2 113.1 mm2 113.1 mm2
Cable Length 1.5 m (60")
Post Mounting 8-32 and M4 Combi Mounting Thread
Aperture Thread External SM1 (1.035"-40) Thread
Thread Depth: 3.0 mm (0.12")
Compatible Consoles PM400, PM100D, and PM5020
Compatible Interfaces PM103, PM103A, PM103EPM103U, and PM100USB
  • For complete specifications, please see the Specs tab here.
  • @ 1 MΩ Load Resistor
  • Including SM1 Thread Depth
  • For Measurements of Repetition Rates up to 10 kHz
  • Two Coating Options:
    • Black Broadband Coating with Flat Response from 185 nm to 25 µm
    • Metal Coating for 185 nm to 2.5 µm to Support Detecting Repetition Rates up to 2 kHz*
  • Ø8 mm or Ø12 mm Sensor Areas
  • BNC Connector for Oscilloscope Use
  • Includes C-Series Connector Adapter for Use with Compatible Thorlabs' Consoles (See Table to the Right or the Console Selection Tab)
  • See the Full Web Presentation for More Information

The ES3xxC and ES412C Fast Pyroelectric Sensors are designed to measure pulsed coherent and incoherent sources with high repetition rates up to 2 kHz. Pyroelectric sensors are not suited for CW measurements, as they convert energy from light pulses into voltage pulses. The ES3xxC sensors have a black broadband that provides a flat response from 185 nm to 25 µm, and, depending on the sensor size, can support measurements of repetition rates up to 1 kHz. The metal-coated ES412C sensor can detect repetition rates up to 2 kHz over a more limited wavelength range of 185 nm to 2.5 µm. Ø8 mm or Ø12 mm sensor areas are available, and each input aperture has external SM1 (1.035"-40) threads for compatibility with our SM1-threaded lens tubes. These energy sensors have BNC connectors for connection to an oscilloscope with a 1 MΩ load input resistance; using these sensors with a different load resistance may lead to reduced speed. A BNC to C-Series adapter containing NIST- and PTB-traceable calibration data is also included with each sensor.

Thorlabs offers a recalibration service for these energy sensors, which can be ordered below (see Item # CAL-THPY).

*To detect repetition rates up to 10 kHz, Thorlabs also offers the ES408C Pyroelectric Sensor, which can be controlled using the PM103 Series Power and Energy Meter Interfaces; as the PM400 console, PM100D console, and PM100USB interface can only support sensors with repetition rates up to 3 kHz, they should not be used with the ES408C sensor.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
ES308C Support Documentation
ES308CPyroelectric Energy Sensor, Black Coating, 0.185 - 25 µm, 1 J, Ø8 mm, 1 kHz
$1,392.30
7-10 Days
ES312C Support Documentation
ES312CPyroelectric Energy Sensor, Black Coating, 0.185 - 25 µm, 1 J, Ø12 mm, 250 Hz
$1,445.85
7-10 Days
ES412C Support Documentation
ES412CPyroelectric Energy Sensor, Metal Coating, 0.185 - 2.5 µm, 500 mJ, Ø12 mm, 2 kHz
$1,499.40
7-10 Days
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Recalibration Service for Photodiode Power Sensors

Calibration Service Item # Compatible Sensors
CAL-UVPD S120VC
CAL-PD S116C, S120C, S121C, S170C, S171C, S140C, S142C, S142CL, S150C, S151C, PM16-120, PM16-121, PM16-140
CAL-UVPD2 S130VC
CAL-PD2 S130C, PM16-130, PM160
CAL-IRPD S122C, S144C, S145C, S145CL, S146C, S154C, S155C, PM16-122, PM16-144
CAL-IRPD2 S132C
CAL-MIRPD S148C, S180C

Thorlabs offers recalibration services for our photodiode optical power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of a single-channel power and/or energy meter console or interface is included with the recalibration of a sensor at no additional cost. If you wish to calibrate one or more sensors with a dual-channel console, each sensor and console calibration service will need to be purchased individually. For more details on these recalibration services, please click the Documents () icons below.

Refer to the table to the right for the appropriate calibration service Item # that corresponds to your power sensor.

Requesting a Calibration
Thorlabs provides two options for requesting a calibration:

  1. Complete the Returns Material Authorization (RMA) form. When completing the RMA form, please enter your name, contact information, the Part #, and the Serial # of each item being returned for calibration; in the Reason for Return field, select "I would like an item to be calibrated." All other fields are optional. Once the form has been submitted, a member of our RMA team will reach out to provide an RMA Number, return instructions, and to verify billing and payment information.
  2. Select the appropriate sensor calibration Item # below, enter the Part # and Serial # of the sensor that requires recalibration, and then Add to Cart. If you would like a console calibrated with your sensor, repeat this process for Item # CAL-PM1 or CAL-PM2 below, entering the console Item # and Serial #. A member of our RMA team will reach out to coordinate the return of the item(s) for calibration. Note that each console calibration Item # represents the cost of calibrating a console alone; if requesting a single-channel console calibration with a sensor calibration, the appropriate discount will be applied when your request is processed. Should you have other items in your cart, note that the calibration request will be split off from your order for RMA processing.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CAL-UVPD Support Documentation
CAL-UVPDRecalibration Service for S120VC UV-Extended Silicon Photodiode Power Sensor
Part Number:  Serial Number:
$193.21
Lead Time
CAL-PD Support Documentation
CAL-PD Recalibration Service for Single-Power-Range Silicon Photodiode Power Sensors
Part Number:  Serial Number:
$167.48
Lead Time
CAL-UVPD2 Support Documentation
CAL-UVPD2Recalibration Service for S130VC Extended-UV Silicon Photodiode Power Sensor
Part Number:  Serial Number:
$229.44
Lead Time
CAL-PD2 Support Documentation
CAL-PD2Recalibration Service for Dual-Power-Range Silicon Photodiode Power Sensors
Part Number:  Serial Number:
$194.83
Lead Time
CAL-IRPD Support Documentation
CAL-IRPD Recalibration Service for Single-Power-Range Germanium or InGaAs Photodiode Power Sensors
Part Number:  Serial Number:
$188.88
Lead Time
CAL-IRPD2 Support Documentation
CAL-IRPD2Recalibration Service for Dual-Power-Range Germanium or InGaAs Photodiode Power Sensors
Part Number:  Serial Number:
$206.69
Lead Time
CAL-MIRPD Support Documentation
CAL-MIRPDRecalibration Service for Extended InGaAs or MCT Photodiode Power Sensors
Part Number:  Serial Number:
$337.37
Lead Time
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Recalibration Service for Thermal Power and Pyroelectric Energy Sensors

Sensor Type Sensor Item #s
Thermal Power S175C, S302Ca, S305Ca, S310Ca, S314Ca,S322C, S350C, S370C, S401C, S405C, S415C, S425C, S425C-L, S470C, PM160T, PM160T-HP, PM16-401, PM16-405
Pyroelectric Energy ES111C, ES120C, ES145C, ES220C, ES245C, ES308C, ES312C, ES408C, ES412C
  • This former catalog item is now offered as a special.

Thorlabs offers recalibration services for our Thermal Power and Pyroelectric Energy Sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of a single-channel power and/or energy meter console or interface is included with the recalibration of a sensor at no additional cost. If you wish to calibrate one or more sensors with a dual-channel console, each sensor and console calibration service will need to be purchased individually.

Please note that the CAL-THPY recalibration service cannot be used for our Thermal Position & Power Sensors; recalibration for these sensors can be requested by contacting Tech Support. The table to the upper right lists the sensors for which the CAL-THPY recalibration service is available.

Requesting a Calibration
Thorlabs provides two options for requesting a calibration:

  1. Complete the Returns Material Authorization (RMA) form. When completing the RMA form, please enter your name, contact information, the Part #s, and the Serial #s of all sensors or consoles being returned for calibration; in the Reason for Return field, select "I would like an item to be calibrated." All other fields are optional. Once the form has been submitted, a member of our RMA team will reach out to provide an RMA Number, return instructions, and to verify billing and payment information.
  2. Enter the Part # and Serial # of the item that requires recalibration below and then Add to Cart. If you would like a console calibrated with your sensor, repeat this process for Item # CAL-PM1 or CAL-PM2 below, entering the console Item # and Serial #. A member of our RMA team will reach out to coordinate the return of the item(s) for calibration. Note that each console calibration Item # represents the cost of calibrating a console alone; if requesting a single-channel console calibration with a sensor calibration, the appropriate discount will be applied when your request is processed. Should you have other items in your cart, note that the calibration request will be split off from your order for RMA processing.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team. Pyroelectric energy sensors returned for recalibration or servicing must include the separate BNC to DB9 adapter, which contains the sensor EEPROM.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CAL-THPY Support Documentation
CAL-THPYRecalibration Service for Thermal Power and Pyroelectric Energy Sensors at 1064 nm
Part Number:  Serial Number:
$212.62
Lead Time
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Recalibration of Power & Energy Meter Electronics

Calibration Service Item # Compatible Consoles & Interfaces
Single-Channel
CAL-PM1 PM100D, PM100A, PM400, PM100USB,
PM101 Series, PM102 Series, PM103 Series
Dual-Channel
CAL-PM2 PM5020, Previous-Generation PM320E

These recalibration services are for the power and/or energy meter electronics of our consoles and interfaces. To ensure accurate measurements, we recommend recalibrating annually. Recalibration of a single-channel console or interface is included with these sensor recalibration services at no additional cost. If you wish to calibrate one or more sensors with a dual-channel console, each sensor and console calibration service will need to be purchased individually. For more details on these recalibration services, please click the Documents () icons below. 

The table to the upper right lists the power and/or energy meter consoles and interfaces that can be calibrated using the CAL-PM1 and CAL-PM2 recalibration services.

Requesting a Calibration
Thorlabs provides two options for requesting a calibration:

  1. Complete the Returns Material Authorization (RMA) form. When completing the RMA form, please enter your name, contact information, the Part #, and the Serial # of each item being returned for calibration; in the Reason for Return field, select "I would like an item to be calibrated." All other fields are optional. Once the form has been submitted, a member of our RMA team will reach out to provide an RMA Number, return instructions, and to verify billing and payment information.
  2. Select the appropriate Item # below, enter the Part # and Serial # of the item that requires recalibration, and then Add to Cart. If you would like to calibrate one or more sensors with your console, repeat this process for the appropriate sensor recalibration service above, entering the console Item # and Serial #. A member of our RMA team will reach out to coordinate return of the item(s) for calibration. Note that each console calibration Item # represents the cost of calibrating a console alone; if requesting a single-channel console calibration with a sensor calibration, the appropriate discount will be applied when your request is processed. Should you have other items in your cart, note that the calibration request will be split off from your order for RMA processing.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CAL-PM1 Support Documentation
CAL-PM1Recalibration of Single-Channel Power and/or Energy Meter Electronics
Part Number:  Serial Number:
$78.80
Lead Time
CAL-PM2 Support Documentation
CAL-PM2Recalibration of Dual-Channel Power and Energy Meter Electronics
Part Number:  Serial Number:
$210.12
Lead Time