Optical Power Meter Kits


  • Kits Include Console, Sensor, and Post Assembly
  • Digital or Analog Console
  • Wavelengths from 190 nm to 20 µm
  • Powers from 500 pW to 10 W

PM400K5

Digital Console with Thermal Sensor

PM130D

Digital Console with Slim Photodiode Sensor

PM120VA

Analog Console with Photodiode Sensor

Related Items


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Power Meter Kit Specifications
Item # Power Range Wavelength Range Sensor Type Console Type
PM120VA 50 nW - 50 mW 200 - 1100 nm Si (S120VC) Analog (PM100A)
PM120D 50 nW - 50 mW 400 - 1100 nm Si (S120C) Digital (PM100D)
PM400K1 50 nW - 50 mW 400 - 1100 nm Si (S120C) Touchscreen Digital (PM400)
PM121D 500 nW - 500 mW 400 - 1100 nm Si (S121C) Digital (PM100D)
PM400K2 500 nW - 500 mW 400 - 1100 nm Si (S121C) Touchscreen Digital (PM400)
PM130D 500 pW - 500 mWa 400 - 1100 nm Slim Si (S130C) Digital (PM100D)
PM400K3 500 pW - 500 mWa 400 - 1100 nm Slim Si (S130C) Touchscreen Digital (PM400)
PM122D 50 nW - 40 mW 700 - 1800 nm Ge (S122C) Digital (PM100D)
PM400K4 50 nW - 40 mW 700 - 1800 nm Ge (S122C) Touchscreen Digital (PM400)
PM125D 2 mW - 10 W 0.19 - 20 µm Thermal (S425C) Digital (PM100D)
PM400K5 2 mW - 10 W 0.19 - 20 µm Thermal (S425C) Touchscreen Digital (PM400)
  • The S130C sensor features a sliding neutral density filter. Without the filter, the power measurement range is 500 pW to 5 mW, while with the filter, the range is 5 mW to 500 mW. The position of the ND filter is automatically detected by the power meter console.
Power Meter Selection Guide
Sensors
Photodiode Power Sensors
Thermal Power Sensors
Thermal Position & Power Sensors
Pyroelectric Energy Sensors
Power Meter Consoles
Digital Handheld Console
Analog Handheld Console
Touchscreen Handheld Console
Dual-Channel Benchtop Console
Complete Power Meters
Power Meter Bundles
Wireless Power Meters with Sensors
Compact USB Power Meters
Field Power Meters for Terminated Fibers
USB Interfaces, External Readout

Features

  • Includes Console, Sensor, and Mounting Components
  • Consoles Compatible with C-Series Sensors
  • Large, Easy-to-Read Digital or Analog Display
  • USB 2.0 Port for Control via PC with Optical Power Monitor Software (See Software Tab)
  • Rechargeable Battery
  • 3.5 mm Jack or SMA Output (0 to 2 V) on Consoles for Monitoring Signal
  • Recalibration Services Available

Our optical power meter kits consist of a console, a C-series photodiode or thermal power sensor, and a post mounting assembly. Except for the PM120VA, which includes the PM100A analog power meter console, the sensor in each kit is paired with either a PM100D digital or PM400 touchscreen digital power meter console. For a full list of available kits, see the table to the right.

All three consoles have a USB 2.0 connection that allows them to be controlled remotely using a PC with the Optical Power Meter software package installed (see the Software tab for details).

PM100A Analog Console
Suitable for both absolute and relative power measurements, the PM100A analog power meter console features an analog needle display and a supplemental LCD screen. The analog needle is ideal for relative power measurements and for watching small power fluctuations. The PM100A is compatible with all C-Series photodiode sensors and thermal sensors; it is not compatible with our pyroelectric energy sensors. The PM120VA power meter kit includes the PM100A console and power cables, an S120VC sensor, and a USB flash drive with the software package preloaded. For more information on the PM100A analog console features, see the Specs and Display tabs above or visit the full web presentation.

PM100D Digital Console
The PM100D digital power and energy meter console features a menu-driven control panel, 4" backlit display, and SD card slot for storing data. Measurements screens include a numeric readout useful for standard power and energy readings, a simulated analog needle, graphs of power measurements over time, and a statistics view. Additionally, the PM100D console has a tuning mode that provides audio feedback for use when the detector is not within visual range. See the PM100D Display tab for more information. The console is compatible with all our C-Series sensors for power or energy measurements, including our pyroelectric energy sensors, and includes a USB flash drive with the software package preloaded. For more information on the PM100D digital console features, see the Specs and Display tabs above or visit the full web presentation.

PM400 Touchscreen Digital Console
The PM400 touchscreen digital power and energy meter console features a 4.3" display with multi-touch technology. Capacitive buttons on the front of the unit enable fast access to set the source wavelength or spectrum, a delta mode that shows the change in power from a user-selected set point, the zeroing function, and device main menu. In addition to pre-programming source wavelengths or spectra for calibrating measurements, users can enter and save up to twelve attenuation values or data files to correct for effects that external devices (such as filters or beamsplitters) may have on the power measurement.

A 14-pin auxiliary input allows users to connect their own humidity and temperature sensors as well as access four programmable I/O ports for controlling shutters, interlock devices, laser warning lights, and other common lab devices (see the Pin Diagrams tab for pin descriptions). Alternatively, a 2.5 mm stereo (3P) jack accepts the TSP-TH thermistor temperature probe. Like the PM100D, this console is compatible with all our C-Series sensors. For more information on the PM400 touchscreen digital console features, see the Specs and Display tabs above or visit the full web presentation.

Additional Power Meter and Sensor Options
The power meter consoles and sensors in these kits can also be purchased individually. Additionally, Thorlabs offers self-contained wireless power meters, designed for both handheld operation and remote control via Bluetooth or USB, and compact USB power meters, designed to be operated via software control on a PC.

Recalibration Service
Recalibration services are available for our photodiode and thermal power meter sensors and consoles. We recommend recalibrating your Thorlabs sensor and console 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.

Click here for the complete PM100A product presentation.

PM100A Specifications
Photodiode Sensor Input (Current)
Measurement Ranges 6 Decades; 50 nA - 5 mA
Units W
Accuracy ±0.2% of Full Scale (5 µA - 5 mA)
±0.5% of Full Scale (50 nA)
±3% Full Scale Analog Meter
Bandwidth DC to 100 kHz, Dependent on Sensor and Settings
Analog Output
Connector SMA
Voltage Range 0 - 2 V
Bandwidth Up to 100 kHz, Dependent on Sensor and Settings
Accuracy ±3%
General
Sensor Input Female DB9 for C-Series Connectors
Display Analog Needle with 132 x 32 pixel LCD Readout
Display Update Rate 20 Hz
Display Screens Numerical, Relative Measurements, Tuning, Statistics, Mechanical Analog Needle
Memory Card N/A
A/D Converter 16 bit
Computer Connectivity USB 2.0, Mini USB
Battery Li-Polymer 3.7 V, 1300 mAh; up to 8 hrs of Operation
Dimensions 7.2" x 4.3" x 1.6" (183 mm x 109 mm x 40 mm)
Operating / Storage Temp 0 to 40 °C / -40 to 70 °C
Mounting Kickstand, 1/4"-20 Mounting Hole

Click here for the complete PM100D product presentation.

PM100D Specifications
Photodiode Sensor Input (Current)
Measurement Ranges 6 Decades; 50 nA - 5 mA
Units W, dBm, W/cm2, A
Accuracy ±0.2% of Full Scale (5 µA - 5 mA)
±0.5% of Full Scale (50 nA)
Bandwidth DC to 100 kHz, Dependent on Sensor and Settings
Thermopile Sensor Input (Voltage)
Measurement Ranges 4 Decades; 1 mV - 1 V
Units W, dBm, W/cm2, V
Accuracy ±0.5% of Full Scale (10 mV - 1 V)
±1% of Full Scale (1 mV)
Bandwidth DC to 10 Hz, Dependent on Sensor and Settings
Time Constant Correction 1 - 30 s
Analog Output
Connector SMA
Voltage Range 0 - 2 V
Bandwidth Up to 100 kHz, Dependent on Sensor and Settings
Accuracy ±3%
General
Sensor Input Female DB9 for C-Series Connectors
Display 3.2" x 2.4" (81.4 mm x 61 mm), 320 x 240 pixels
Display Update Rate 20 Hz
Display Screens Numerical, Bar Graph, Trend Graph, Statistics, Simulated Analog Needle
Memory Card SD, 1 GB
A/D Converter 16 bit
Computer Connectivity USB 2.0, Mini USB
Battery Li-Polymer 3.7 V, 1300 mAh; up to 8 hrs of Operation
Dimensions 7.2" x 4.3" x 1.6" (183 mm x 109 mm x 40 mm)
Operating / Storage Temp 0 to 40 °C / -40 to 70 °C
Mounting Kickstand, 1/4"-20 Mounting Hole

Click here for the complete PM400 product presentation.

Specifications
Compatible Detectors Thorlabs' C-Series Photodiode, Thermal, and Pyroelectric Sensors
Photodiodes up to 5 mA, Thermopiles up to 1 V, and Pyroelectric Detectors up to 100 V
Display
Type 4.3" TFT, WQVGA, 400 x 272 Pixels, 16 Bit Color
Viewing Area 95 mm x 54 mm
Update Rate (Max) 10 Hz Numerical, 25 Hz Analog Simulation
Format Numerical, Bar Graph, Trend Graph, Statistics, and Simulated Analog Needle
Backlight LED, Adjustable
Features Projected Capacitive Touchscreen and Buttons, Support Stand, Rubberized Outside,
2 x M3 Threaded Inserts for Mounting on Back Side
Analog Output
Connector 3.5 mm Mono Audio (2P) Jack, Adapter to BNC Included
Signal Amplified Input Signal - Not Corrected
Voltage Range 0 to 2 V
Accuracy ±3%
Bandwidth Up to 100 kHz, Dependent on Sensor and Settings
Auxiliary Input/Output
Connector 2 x 7 Pins, 0.1" Socket, Top Side
Function 4 x GPIO
2 x 10 bit ADC for External Temperature, Relative Humidity Sensor
+3.3 V, +/- 2.5 V (100 mA Max)
Temperature Sensor Internal to C-Series Optical Sensora
Temperature Sensor Type Thermistor
Temperature Measurement Range -10 °C to 80 °C
External Temperature Sensor
Supported Temperature Sensor Thermistor NTC 0.1 - 100 kΩ, B-Value 1000 - 9999 K
Temperature Measurement Range -10 °C to 80 °C (with TSP-TH)
Connector 2.5 mm Stereo Audio (3P) Jack
Sound
Type Internal Speaker
Function Laser Tuning Support, Console Function Support
Memory
Type NAND Flash
Size 4 GB
Interfaces
Type USB 2.0
Connector Mini-B USB
Power Management
Battery LiPo 3.7 V 2600 mAh
Charger Built In; Charging Current: 0.5 / 1 A
Power Connector Mini USB
General
Operating Temperature Rangeb 0 to 40 °C
Storage Temperature Range -40 to 70 °C
Dimensions 136 mm x 96 mm x 29 mm
Weight 0.35 kg
  • Many of Thorlabs' compatible C-Series optical power and energy sensors have a built-in temperature sensor.
  • Non-Condensing
PM100A Display
Standard Absolute MeasurementsRelative Measurements
Standard Absolute MeasurementsRelative Measurements
This display shows the current absolute power values on both the mechanical needle and the LCD display.Shows positive or negative power deviation from an initially zeroed position (needle in middle position). The offset and the absolute power value will be displayed in two sub displays in negative presentation.
Power Tuning with Sound SupportStatistics Screen
Power Tuning with Sound Support Statistics Screen
This display shows the maximum reached power level.
The level can be reset to the actual power level.		A display showing the current, min, max, and average power.
All items can be reset to restart data sampling.
Wavelength Setting 
Wavelength Setting 
Configuration screen to set the wavelength of the incident beam. Easy switching between 9 user preconfigurable wavelengths. 
PM100D Display
Numeric Screen (Power Mode) Numeric Screen (Energy Mode)
Numeric Screen (Power Mode) 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. Numeric Screen (Energy Mode) A display with the same option as on the left for optical energy read outs.
Trend Graph (Power Mode) Needle Tuning (Power Mode)
Trend Graph (Power Mode) For laser tuning and beam alignment to visualize changes and trends together with an additional 4-digit numerical value of the absolute power. Needle Tuning (Power Mode) 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.
Pulse Chart (Energy Mode) Statistics Screen (Power Mode)
Pulse Chart (Energy Mode) Like the Trend Graph (Power Mode), this shows changes and trends together with an additional 4-digit numerical value of the absolute energy of incident beam pulses. Statistics Screen (Power Mode) The statistics display shows the actual, minimum, maximum and mean value in linear and logarithmic representation; further the standard deviation, the max/min ratio, the number of samples and the elapsed time.

Common Display Elements

  • 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 via buttons
Touchscreen Power Meter Control Panel
Click to Enlarge
The Front Panel of the Touchscreen Power Meter Console

Touchscreen Power Meter Console Front Panel

Thorlabs' PM400 Power Meter Console features a front panel with several key elements, as shown in the photo to the right. The projected capacitive touchscreen and buttons are sensitive enough to allow smooth operation even when the user wears cotton, latex, or nitrile gloves, but durable enough to be cleaned with standard screen cleaning solvents.

  • Capacitive Touchscreen: The capacitive touchscreen allows the user to control the console functions with finger taps and swipes. Features include numerical displays of power and energy measurements, logging of long-term measurements, settings for a calibration wavelength or a preset attenuation value, and temperature monitoring. The user can switch measurement views by swiping one finger over the screen to the left or right, or by tapping the window icon in the lower right corner of the screen. More details on the measurement options are provided below.
  • Spectral Correction Button: This button opens a screen where the user can quickly select or save up to 12 measurement wavelengths. The PM400 will use this wavelength setting in conjunction with the calibration data recorded in the connector of Thorlabs' power and energy sensors in order to provide a calibrated optical power or energy reading. The selected wavelength is displayed above the button.
  • Delta Mode: In delta mode, the console will display the power or energy relative to a user selected setpoint. Pressing this button saves the current power or energy reading as the reference value, and subsequent measurements will be displayed as the difference between the actual value and the reference. The reference value is displayed above this button when Delta Mode is active. 
  • Zeroing: Quickly set the current power or energy value as the zero point for subsequent measurements. The measured power or energy when the console is zeroed will be displayed above the Zero button.
  • Main Menu: This button provides quick access to the main menu. From here, the user can access a submenu to set the parameters for long-term power measurements, device settings, the file manager, sensor info, and the laser calculator. Details are provided below.

Additional Features
 In addition to allowing users to select different measurement modes and settings, the PM400 incorporates other features to allow users to customize the interface.

  • Language Settings: English, French, German, and Chinese can be selected.
  • Display Brightness and Contrast: In addition to adjusting these settings, the user can choose whether to have the display show white text on a black background, or black text on a white background.
  • Laser Tuning Sound: The console plays an audible tone to aid in identifying when peak power is achieved while tuning a laser. The console will beep repeatedly, with the frequency of the beep increasing as the measured power increases.
  • Programmable I/O Ports: The PM400 features four programmable I/O ports for controlling shutters, interlocks, laser warning lights, etc.

The Touchscreen Display

The screenshots below provide an overview of some of the measurement views, measurement settings, functions, and calculators accessible through the touchscreen display.

Numerical Display

Power Meter Numeric Readout

 

Subpanel Display Options
Photodiode Sensors Thermal Sensors Pyroelectric Sensors
Current (IDET) Voltage (VDET) Voltage (VDET)
Power (Φe) Power (Φe) Energy (WDET)
Power in dBm (Φe) Power in dBm (Φe) N/A
Max Max Max
Min Min Min
Ratio (Max/Min) Ratio (Max/Min) Ratio (Max/Min)
Sensor Temperaturea Sensor Temperaturea N/A
Frequency Frequency Frequency
External NTC Temperature External NTC Temperature External NTC Temperature
Irradiance (Ee) Irradiance (Ee) Fluence (He)
  • Many, but not all, of Thorlabs' compatible optical power sensors have an internal temperature sensor. This subpanel display option is only available if this internal temperature sensor is detected by the PM400.

The numerical display shows a digital measurement of the power or energy with a bar graph along the bottom. The orange and blue triangles on the bar graph show the min and max values detected during the measurement. To reset the min and max values, press the reset button on the front panel. The six rectangular subpanels immediately above the power or energy measurement are configurable displays, allowing the user to select which parameters to view. The Subpanel Display Options table provides a summary of available settings for each style of detector.

Simulated Analog Needle

Power Meter Analog Needle

Measurements can be viewed with a simulated analog needle. The orange and blue marks are indicators for the max and min measured power, and the scale can be zoomed by a factor of 10. Icons down the side of the screen allow the user to set the bandwidth, adjust the resolution of the digital value at the bottom of the display, change units, adjust the display update rate or change screens.

Graph View

Power Meter Data Logging

In the graph view, the user can monitor the optical power or energy of a source as it changes over time. A second, optional display can be added that shows the readout from a connected temperature sensor (the upper graph in the screenshot above). Icons on the side of the window allow the user to start and stop the measurement, scroll through the data, and open the folder where the measurement is saved.

Statistics Display

Power Meter Data Statistics

In the statistics display, the user can start a sequential measurement. The sample rate and duration can be adjusted from the Capture Settings screen, accessible from the main menu. The bottom bar of the display shows the number of measurements taken, total elapsed time since the measurements were started, and the measurement interval. The main part of the display shows statistics for the accumulated measurements, including the minimum, maximum, mean, and standard deviation.

Spectral Correction

Spectral Correction

This mode can be entered by pressing the λ symbol on the front panel. The unit can store up to 12 preset spectral correction entries, editable by the user. In their simplest form, these entries can consist of a single user-entered wavelength that will be used in conjunction with the NIST-traceable calibration data from a Thorlabs' sensor to produce a calibrated power measurement. Alternatively, each entry can be a .csv file with the source spectrum that has been uploaded and saved. When a spectral correction entry is selected, the entry name will be displayed in the field above the spectral correction button.

Attenuation Correction

Attenuation Correction

External devices within a setup, such as a filter or beamsplitter, may be needed to attenuate the signal being measured. The attenuation correction function allows the PM400 to display a power reading that accounts for these sources of attenuation. Attenuation values can be assigned as a multiplier (e.g. x2), in percent, in dB, or in OD (optical density). Alternatively, complete filter transmission curves can be uploaded and saved. Up to 12 different attenuation settings can be programmed and stored.

Main Menu

Main Menu

The PM400 main menu allows access to device features including the screen brightness, the menus to set the parameters for power, energy, and temperature measurements, a screen for calculating laser pulse characteristics, and a unit converter.

Capture Settings

Capture Settings

This screen allows the user to set the parameters for taking data. User-selectable settings include manual or automatic data acquisition, the exposure time, the number of samples, and the capture interval. It also allows the temperature logging parameters to be set. Once all of the settings are selected, this screen will return an estimated file size so that the user can ensure there is enough free memory on the device. In the case of manual operation (the user manually starts and stops the measurement), the estimated output file size will be the rate at which memory is used up as the data is collected.

Sensor Measurement Settings

Measurement Settings

This screen allows the user to view sensor-dependent content, adjust common settings such as wavelength, attenuation, mode, etc., and enter beam parameters.

Temperature Sensor Settings

Temperature Measurement Settings

If an external temperature sensor is hooked up to the PM400, the user can adjust the parameters here.

Laser Calculator and Unit Converter

Laser Calculator

The PM400 has several calculators. The laser calculator screen allows the user to calculate laser beam parameters based on available inputs. A unit converter provides quick conversions between Watts and dBm or between wavelength, frequency, wavenumbers, and photon energy.

 

PM100A and PM100D Power Meter Consoles

Optical Sensor Head Input


9-Pin Female D-Sub
Connection
Pin PM100A PM100D
1 +5 V (100 mA Max Current from This Pin)
2 DO NOT USEa
3 AGND (Analog Ground): Photodiode Ground (Anode),
Thermal and Pyroelectric Sensor Ground
4 Photodiode Cathode
5 Not Connected Pyro-Electric Sensor +
6 DGND (Digital Ground)
7 Present: Connect this Pin via a 1 kΩ to 10 kΩ Resistor
to Pin 3 (AGND) to Enable a Custom Sensor
8 Thermal Sensor +
9 Not Connected
  • Pin 2 is reserved for the EEPROM Digital I/O (memory in Thorlabs' sensor heads) and MUST NOT be used to connect anything other than a C-Series sensor. Connecting this pin may cause the console to malfunction.

Analog Output

 

SMA Female

0 ... 2 V,
SMA Female

Computer Connection
USB Type Mini-B


USB Type Mini-B for Remote Control and Charging,
Cable Included

PM400 Power Meter Console

Optical Sensor Head Input


9-Pin Female D-Sub
Pin Connection
1 +5 V (100 mA Max Current from This Pin)
2 DO NOT USEa
3 AGND (Analog Ground): Photodiode Ground (Anode),
Thermal and Pyroelectric Sensor Ground
4 Photodiode Cathode
5 Pyroelectric Sensor +
6 DGND (Digital Ground)
7 Present: Connect this Pin via a 1 kΩ to 10 kΩ Resistor
to Pin 3 (AGND) to Enable a Custom Sensor
8 Thermal Sensor +
9 Not Connected
  • Pin 2 is reserved for the EEPROM Digital I/O (memory in Thorlabs' sensor heads) and MUST NOT be used to connect anything other than a C-Series sensor. Connecting this pin may cause the console to malfunction.

Auxiliary Connector


14-Pin Dual-In-Line Socket, 0.1" (2.54 mm) Pitch
Pin Connection
1 Ground
2 +3.3 VDC, 0.1 A
3 Do Not Use (No Function)
4 ADC Current In (Humidity Sensor)
5 Temp / Humidity Detection Module
6 ADC Current In (Temperature Sensor)
7 GPIO 02
8 GPIO 01
9 GPIO 03
10 GPIO 04
11 Ground
12 + 2.5 VDC, 0.05 A
13 Ground
14 -2.5 VDC, 0.05 A

Computer Connection
USB Type Mini-B


USB Type Mini-B for Remote Control and Charging,
Cable Included

Analog Output


0 to 2 V,
3.5 mm Mono Audio (2P) Jack

Temperature Sensor Input


2.5 mm Stereo Audio (2P) Jack for NTC

Compatible Power Meters

  • PM100A Analog Power and Energy Meter Console
  • PM100D Digital Power and Energy Meter Console
  • 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
  • PM400 Capacitive Touchscreen Power and Energy Meter Console
  • PM160, PM160T, and PM160T-HP Wireless Handheld Power Meters with Bluetooth® Technology
  • PM16 Series Compact USB Power Meters

The Optical Power Monitor software is not compatible with the PM320E Benchtop Power 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.

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.

Pulsed Laser Emission: Power and Energy Calculations



Click above to download the full report.

Determining whether emission from a pulsed laser is compatible with a device or application can require referencing parameters that are not supplied by the laser's manufacturer. When this is the case, the necessary parameters can typically be calculated from the available information. Calculating peak pulse power, average power, pulse energy, and related parameters can be necessary to achieve desired outcomes including:

  • Protecting biological samples from harm.
  • Measuring the pulsed laser emission without damaging photodetectors and other sensors.
  • Exciting fluorescence and non-linear effects in materials.

Pulsed laser radiation parameters are illustrated in Figure 1 and described in the table. For quick reference, a list of equations are provided below. The document available for download provides this information, as well as an introduction to pulsed laser emission, an overview of relationships among the different parameters, and guidance for applying the calculations. 

 

Equations:
Period and repetition rate are reciprocal:    and 
Pulse energy calculated from average power:       
Average power calculated from pulse energy:        
Peak pulse power estimated from pulse energy:            

Peak power and average power calculated from each other:
  and
Peak power calculated from average power and duty cycle*:
*Duty cycle () is the fraction of time during which there is laser pulse emission.
Pulsed Laser Emission Parameters
Click to Enlarge

Figure 1: Parameters used to describe pulsed laser emission are indicated in the plot (above) and described in the table (below). Pulse energy (E) is the shaded area under the pulse curve. Pulse energy is, equivalently, the area of the diagonally hashed region. 

Parameter Symbol Units Description
Pulse Energy E Joules [J] A measure of one pulse's total emission, which is the only light emitted by the laser over the entire period. The pulse energy equals the shaded area, which is equivalent to the area covered by diagonal hash marks.
Period Δt  Seconds [s]  The amount of time between the start of one pulse and the start of the next.
Average Power Pavg Watts [W] The height on the optical power axis, if the energy emitted by the pulse were uniformly spread over the entire period.
Instantaneous Power P Watts [W] The optical power at a single, specific point in time.
Peak Power Ppeak Watts [W] The maximum instantaneous optical power output by the laser.
Pulse Width Seconds [s] A measure of the time between the beginning and end of the pulse, typically based on the full width half maximum (FWHM) of the pulse shape. Also called pulse duration.
Repetition Rate frep Hertz [Hz] The frequency with which pulses are emitted. Equal to the reciprocal of the period.

Example Calculation:

Is it safe to use a detector with a specified maximum peak optical input power of 75 mW to measure the following pulsed laser emission?

  • Average Power: 1 mW
  • Repetition Rate: 85 MHz
  • Pulse Width: 10 fs

The energy per pulse:

seems low, but the peak pulse power is:

It is not safe to use the detector to measure this pulsed laser emission, since the peak power of the pulses is >5 orders of magnitude higher than the detector's maximum peak optical input power.

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 PM320E
(Click Photo to Enlarge) PM100A PM100D PM400 PM320E
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 and Thermal Power; Pyroelectric
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)		 4.8" x 8.7" x 12.8"
(122 mm x 220 mm x 325 mm)
Channels 1 2
External Temperature Sensor Input (Sensor not Included) - - Instantaneous Readout and Record Temperature Over Time -
External Humidity Sensor Input (Sensor not Included) - - Instantaneous Readout and Record Humidity Over Time -
GPIO Ports - 4, Programmable -
Source Spectral Correction - - Yes! -
Attenuation Correction - - 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 240 x 128 Pixels
Graphical LCD 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)		 3.7" x 2.4"
(94.0 mm x 61.0 mm)
Refresh Rate 20 Hz 10 Hz (Numerical)
25 Hz (Analog Simulation)		 20 Hz
Measurement Viewsa
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 - Yes!
Statistics Yes! yes Yes! yes
Memory
Type - SD Card NAND Flash -
Size - 2 GB 4 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 Selectable Line Voltage: 100 V, 115 V, 230 V (±10%)
  • These are the measurement views built into the unit. All of our power meter consoles except the PM320E can be controlled using the Optical Power Monitor software package. The PM320E has its own software package.

Interfaces

Item # PM101 PM102 PM103 PM101A PM102A PM103A PM101R PM101U PM102U PM103U PM100USB
(Click Photo to Enlarge) PM101 PM102 PM103 PM101A PM102A PM103A PM101R PM101U PM102U PM103U PM100USB
Operation Protocol USB, RS232, UART,
and Analog		 USB and Analog SMA USB and
RS232		 USB Operation USB
Sensor Compatibility
Photodiode - - -
Thermal Power - - -
Thermal Position & Power - - - - - - - -
Pyroelectric - - - - - - -
Key Features
C-Series Sensor
DE-9 Connector
USB Connector Lockable Lockable Lockable Lockable Not Lockable
Serial DE-9 Connector - - - -
SMA Connector(s) - 1 Analog Power Output 3 Ports: Power, X-Position, and Y-Position 3 Ports: AO1, AO2, and
Digital I/O (Configurable as External Trigger Input)		 - - -
DA-15 Universal Connector with
2 Auxiliary I/O Ports		 GPIO Ports Also Configurable as Trigger Input (Pin 2) or for Pass/Fail Analysis (Pin 3) - - - -
External Temperature
Sensor Input
(Sensor Not Included)		 NTC Thermistor - - - -
Display
Type No Built-In Display; Controlled via GUI for PC
Refresh Ratea Up to 1000 Hz Up to 1000 Hz Up to 1000 Hz Up to 1000 Hz Up to 300 Hz
Measurement Viewsb
Numerical Requires PC
Simulated Analog Needle Requires PC
Bar Graph Requires PC
Trend Graph Requires PC
Histogram Requires PC
Statistics Requires PC
Memory
Type Internal Non-Volatile Memory
for All Settings		 Internal Non-Volatile Memory
for All Settings		 Internal Non-Volatile Memory for All Settings Internal Non-Volatile Memory
for All Settings		 -
Power
External 5 VDC via USB or
5 to 36 VDC via DA-15 Pins 1 and 9		 5 VDC via USB 5 VDC via USB 5 VDC via USB 5 VDC via USB
  • 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.

Posted Comments:
80kmh  (posted 2017-09-11 18:35:39.067)
Dear sir/madam, I want to use this powermeter module. Regarding the software, is it providing the software developing file for example SDK or library and etc... I need it to develop my software using this item.
swick  (posted 2017-09-12 03:56:58.0)
This is a response from Sebastian at Thorlabs. Thank you for the inquiry. Our Power Meter Consoles can be controlled with SCPI commands. After installing the software package you can find examples e.g. in C# at path: C:\Program Files (x86)\IVI Foundation\VISA\WinNT\PM100D\Example I will contact you directly to provide further information about the driver.
anatole.heliot  (posted 2016-04-26 04:45:15.563)
Hello, I'm using the PM120D pack (with S120C photodiode) for measuring an light intensity in function of time. I'm wondering if I can have a response time on the order of microsecond with the analog output. Thank you, Anatole HELIOT
shallwig  (posted 2016-04-27 10:41:24.0)
This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. The analog output Bandwidth is DC-100 kHz dependent on the sensor. For the photodiodes sensors you can find the output bandwidth dependent on the current range in the manual on page 68 https://www.thorlabs.com/thorcat/17600/PM100D-Manual.pdf . I will contact you directly to check your application in more detail.
jvigroux  (posted 2012-05-16 07:51:00.0)
A resposne from Julien at Thorlabs: Dear Ken, thank you for your feedback! We indeed do not write explicitly that a post holder and a base are included in those bundles. We will modify the text on the webpage to make the exact component list clearer.
ken  (posted 2012-05-16 08:23:07.0)
They come with a post/holder/base? We do not see the information in the page here though. Ken
jvigroux  (posted 2011-11-17 13:52:00.0)
A response from Julien at Thorlabs: Dear Martin, I am really sorry about this inconvenience. We will ship you a replacement immediately. Concerning your question about the quality control, we do check each power meter individually before shipment. I unfortunately do not know what the exact problem with your console is but I assume something must have happened during the shipment. We will inspect the unit as soon as we have it back and take the appropriate measures to prevent such issue from happening again. I will contact you directly to sort out the shipping details for the replacement.
m.j.slaman  (posted 2011-11-17 12:24:11.0)
I have unpacked my PM204 (consists of a PM200 and a S120VC) but it is not reading anything. The measured value remains inf as well as the minimum and maximum value. Also in the applied software I don`t see any reading (value remains 0 or ---). I have auto ranging on an tried with several light conditions. In the software an indicator shows A (waiting for new measurement value)(in the left top corner) while I expect sometimes a T of "trigger". The detector itself is ok since it is functioning on a PM100D console. I have attached also a second detector (S155C)on the PM200 without success. I have checked for firmwareupdates but there are non available on the website. I can not find any reset functions or trigger-arm functions in the manual nor in the software. Did anybody check the console before chipping? That must be since a callibration sheet was shipped with it?!?! How do I fix it? Martin
bdada  (posted 2011-10-10 17:12:00.0)
Response from Buki at Thorlabs: Thank you for using our Feedback tool. Our sensors measure light from 200nm upwards. We will contact you regarding the possibility of a custom sensor that can measure 193nm.
matt.hansen  (posted 2011-10-10 13:43:09.0)
To Whom: What would bea good detector to use with our PM310D meter to measure 193 nm light in the nW range ? Matt Hansen
bdada  (posted 2011-10-06 20:36:00.0)
Response from Buki at Thorlabs: Thank you for your feedback. The PM120A has been replaced with the PM120D, which is designed for 400 - 1100nm and power levels of 50nW to 50mW. We will contact you to discuss your application.
ryanlee  (posted 2011-10-06 17:58:46.0)
Hi Can you advise if the PM120A is suitable to check the below mentioned items? 1) 3M Curing Light 2500 http://dentista.pinoydental.com/component/page,shop.product_details/flypage,shop.flypage/product_id,20/category_id,9/manufacturer_id,0/option,com_virtuemart/Itemid,70/vmcchk,1/ 2) Dymax Bluewave 75 http://www.dymax.com/products/curing_equipment/uv_spot_lamps/bluewave_75.php Thanks! Regards Ryan
jjurado  (posted 2011-05-04 13:27:00.0)
Response from Javier at Thorlabs to dBolles: Thank you very much for contacting us. Yes, all of our C series sensors have NIST-traceable calibration data, as well as sensor information, saved in the DB9 connector. This information is automatically retrieved by our power meters as soon as the sensor is connected.
dBolles  (posted 2011-05-04 08:41:42.0)
Do all of your C detectors have the calibration data for the detector stored in the DB connector?
fcao  (posted 2011-01-26 17:59:05.0)
Hi Simon. Our China office will contact you shortly.
simonhedwin  (posted 2011-01-26 15:05:21.0)
??PM121D??????
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 PM320E PM101
Series		 PM102
Series		 PM103
Series		 PM100USB
Photodiode Power -
Thermal Power -
Thermal Position - - - - - -
Pyroelectric Energy - - -

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 20 ms 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.

Sensor Options
(Arranged by Wavelength Range)

Sensors by Wavelength

Sensor Options
(Arranged by Power Range)

Sensors by Power

Sensor Key

Analog Console with Photodiode Sensor (50 nW - 50 mW, 200 nm - 1100 nm)

Kit Item # PM120VA
Click Image to Enlarge
Included Console Item #
 PM100A
Display Analog Needle with 132 x 32 Pixel LCD
Connectivity USB 2.0 Connectivity
Console Sensor Compatibility All C-Series Photodiode and Thermal Power Sensors
Included Sensor S120VC
Wavelength Range 200 - 1100 nm
Power Range 50 nW - 50 mW
Resolution 1 nW
Detector Type Si Photodiode
Aperture Ø9.5 mm
Spec Sheet PDF

This kit includes our PM100A console, an S120VC photodiode power sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. This is a general-purpose kit for low-power lasers (50 nW - 50 mW) within the visible and NIR regions. Surrounding the sensor's active area is a fluorescing alignment disk, which absorbs light from 200 - 525 nm. Many of our laser diodes and HeNe lasers are suitable for use with this power meter kit.

Thorlabs offers a recalibration service for this power and energy meter kit, which can be ordered using Item # CAL-UVPD below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM120VA Support Documentation
PM120VAAnalog Power Console, Si Sensor, 200 nm - 1100 nm, 50 nW - 50 mW
$1,450.03
Today

Digital Console with Photodiode Sensor (50 nW - 50 mW, 400 nm - 1100 nm)

Kit Item # PM120D PM400K1
Click Image to Enlarge
Included Console Item # PM100D PM400
Display 4" Backlit Digital Display,
320 x 240 Pixel Resolution		 4.3" Capacitive Color Touchscreen, WQVGA Resolution
Connectivity USB 2.0 Connectivity
Console Sensor
Compatibility		 All C-Series Photodiode and Thermal Power Sensors
as Well as All Pyroelectric Energy Sensors
Included Sensor S120C
Wavelength Range 400 - 1100 nm
Power Range 50 nW - 50 mW
Resolution 1 nW
Detector Type Si Photodiode
Aperture Ø9.5 mm
Spec Sheet PDF

Each kit includes our PM100D or PM400 power meter console, a S120C photodiode sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. This is a general purpose kit for low power lasers (50 nW - 50 mW) within the visible and NIR. Surrounding the sensor's active area is a fluorescing alignment disk, which absorbs light from 400 - 640 nm and 800 - 1700 nm. Many of our laser diodes and HeNe lasers are suitable for use with this power meter kit.

Thorlabs offers a recalibration service for these power and energy meter kits, which can be ordered using Item # CAL-PD below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM120D Support Documentation
PM120DDigital Power & Energy Console, Si Sensor, 400 nm - 1100 nm, 50 nW - 50 mW
$1,460.86
Today
PM400K1 Support Documentation
PM400K1Touchscreen Digital Power & Energy Console, Si Sensor, 400 - 1100 nm, 50 nW - 50 mW
$1,752.61
Today

Digital Console with Photodiode Sensor (500 nW - 500 mW, 400 nm - 1100 nm)

Kit Item # PM121D PM400K2
Click Image to Enlarge
Included Console Item # PM100D PM400
Display 4" Backlit Digital Display,
320 x 240 Pixel Resolution		 4.3" Capacitive Color Touchscreen, WQVGA Resolution
Connectivity USB 2.0 Connectivity
Console Sensor
Compatibility		 All C-Series Photodiode and Thermal Power Sensors
as Well as All Pyroelectric Energy Sensors
Included Sensor S121C
Wavelength Range 400 - 1100 nm
Power Range 500 nW - 500 mW
Resolution 10 nW
Detector Type Si Photodiode
Aperture Ø9.5 mm
Spec Sheet PDF

Each kit includes our PM100D or PM400 console, a S121C photodiode sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. This is a general purpose kit for low to medium power lasers (500 nW - 500 mW) within the visible and NIR spectrums (<1100 nm). It is similar to the S120C, which is included in the kit above, but an ND filter attenuates the light before the sensor. Surrounding the sensor's active area is a fluorescing alignment disk, which absorbs light from 400 - 640 nm and 800 - 1700 nm.

Thorlabs offers a recalibration service for these power and energy meter kits, which can be ordered using Item # CAL-PD below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM121D Support Documentation
PM121DDigital Power & Energy Console, Si Sensor, 400 nm -1100 nm, 500 nW - 500 mW
$1,494.41
Today
PM400K2 Support Documentation
PM400K2Touchscreen Digital Power & Energy Console, Si Sensor, 400 nm - 1100 nm, 500 nW - 500 mW
$1,780.19
Today

Digital Console with Photodiode Sensor (500 pW - 500 mW, 400 nm - 1100 nm)

Kit Item # PM130D PM400K3
Click Image to Enlarge
Included Console Item # PM100D PM400
Display 4" Backlit Digital Display,
320 x 240 Pixel Resolution		 4.3" Capacitive Color Touchscreen, WQVGA Resolution
Connectivity USB 2.0 Connectivity
Console Sensor
Compatibility		 All C-Series Photodiode and Thermal Power Sensors
as Well as All Pyroelectric Energy Sensors
Included Sensor S130C
Wavelength Range 400 - 1100 nm
Power Range 500 pW - 5 mW
(Up to 500 mW with Filter)a
Resolution 100 pW
Detector Type Si Photodiode
Aperture Ø9.5 mm
Spec Sheet PDF
  • The S130C sensor features a sliding neutral density filter.

Each kit includes our PM100D or PM400 console, a S130C photodiode power sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. The kit's slim sensor head is ideal for use in tight spaces as it is only 0.2"
(5 mm) thick at its sensor. A sliding neutral density filter extends the power range that the sensor can be used to measure. With the filter out of the beam path, the power detection range is
500 pW to 5 mW. With the filter in the beam path, power detection from 50 nW to 500 mW is possible; however, power levels below 5 mW should be detected without the filter in the beam path for optimal results. The filter's position is automatically detected and accounted for by the power meter console.

Thorlabs offers a recalibration service for these power and energy meter kits, which can be ordered using Item # CAL-PD2 below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM130D Support Documentation
PM130DDigital Power & Energy Console, Slim Si Sensor, 400 nm - 1100 nm, 500 pW - 500 mW
$1,682.69
Today
PM400K3 Support Documentation
PM400K3Touchscreen Digital Power & Energy Console, Slim Si Sensor, 400 nm - 1100 nm, 500 pW - 500 mW
$1,967.97
Today

Digital Console with Photodiode Sensor (50 nW - 40 mW, 700 nm - 1800 nm)

Kit Item # PM122D PM400K4
Click Image to Enlarge
Included Console Item # PM100D PM400
Display 4" Backlit Digital Display,
320 x 240 Pixel Resolution		 4.3" Capacitive Color Touchscreen, WQVGA Resolution
Connectivity USB 2.0 Connectivity
Console Sensor
Compatibility		 All C-Series Photodiode and Thermal Power Sensors
as Well as All Pyroelectric Energy Sensors
Included Sensor S122C
Wavelength Range 700 - 1800 nm
Power Range 50 nW - 40 mW
Resolution 2 nW
Detector Type Ge Photodiode
Aperture Ø9.5 mm
Spec Sheet PDF

Each kit includes our PM100D or PM400 console, a S122C photodiode sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. This combination is ideal for customers working with wavelengths in the far red to NIR (700 - 1800 nm). Surrounding the sensor's active area is a fluorescing alignment disk, which absorbs light from 400 - 640 nm and 800 - 1700 nm.

Thorlabs offers a recalibration service for these power and energy meter kits, which can be ordered using Item # CAL-IRPD below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM122D Support Documentation
PM122DDigital Power & Energy Console, Ge Sensor, 700 nm - 1800 nm, 50 nW - 40 mW
$1,793.07
Today
PM400K4 Support Documentation
PM400K4Touchscreen Digital Power & Energy Console, Ge Sensor, 700 nm - 1800 nm, 50 nW - 40 mW
$2,076.18
Today

Digital Console with Thermal Sensor (2 mW - 10 W, 0.19 µm - 20 µm)

Kit Item # PM125D PM400K5
Click Image to Enlarge
Included Console Item # PM100D PM400
Display 4" Backlit Digital Display,
320 x 240 Pixel Resolution		 4.3" Capacitive Color Touchscreen, WQVGA Resolution
Connectivity USB 2.0 Connectivity
Console Sensor
Compatibility		 All C-Series Photodiode and Thermal Power Sensors
as Well as All Pyroelectric Energy Sensors
Included Sensor S425C
Wavelength Range 0.19 - 20 µm
Power Range 2 mW - 10 W
Resolution 100 µW
Detector Type Thermal
Aperture Ø25.4 mm
Spec Sheet PDF

Each kit includes our PM100D or PM400 power meter console, an S425C photodiode sensor, and a post assembly, consisting of a BA2 base, PH2 post holder, and TR2 Ø1/2" post. This is a general-purpose kit for customers working with higher powered lasers (up to 10 W) or longer wavelengths (up to 20 µm). The S425C thermal sensor has an exceptionally fast response time of 0.6 s.

Thorlabs offers a recalibration service for these power and energy meter kits, which can be ordered using Item # CAL-THPY below. Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

We recommend recalibrating your sensor and console as a pair; however, if you would like to recalibrate only your console, use Item # CAL-PM1 below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
PM125D Support Documentation
PM125DDigital Power & Energy Console, Thermal Sensor, 0.19 µm - 20 µm, 2 mW - 10 W
$1,980.70
Today
PM400K5 Support Documentation
PM400K5Touchscreen Digital Power & Energy Console, Thermal Sensor, 0.19 µm - 20 µm, 2 mW - 10 W
$2,268.20
Today

Recalibration Service for Photodiode Power Sensors

Calibration Service Item # Compatible Sensors
CAL-UVPD S120VC
CAL-PD S120C, S121C, S170C, S140C, S142C, S150C, S151C,
PM16-120, PM16-121, PM16-140
CAL-UVPD2 S130VC
CAL-PD2 S130C, PM16-130, PM160
CAL-IRPD S122C, S144C, S145C, 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 would like to have the PM320E Dual-Channel Power and Energy Meter Console calibrated with a sensor or sensors, please contact Tech Support for ordering information.

Refer to the table to the right for the appropriate calibration service Item # that corresponds to your power sensor. Once the appropriate Item # is selected, enter the Part # and Serial # of the sensor that requires recalibration prior to selecting Add to Cart.

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:
$176.00
Lead Time
CAL-PD Support Documentation
CAL-PD Recalibration Service for Single-Power-Range Silicon Photodiode Power Sensors
Part Number:  Serial Number:
$152.57
Lead Time
CAL-UVPD2 Support Documentation
CAL-UVPD2Recalibration Service for S130VC Extended-UV Silicon Photodiode Power Sensor
Part Number:  Serial Number:
$209.00
Lead Time
CAL-PD2 Support Documentation
CAL-PD2Recalibration Service for Dual-Power-Range Silicon Photodiode Power Sensors
Part Number:  Serial Number:
$177.47
Lead Time
CAL-IRPD Support Documentation
CAL-IRPD Recalibration Service for Single-Power-Range Germanium or InGaAs Photodiode Power Sensors
Part Number:  Serial Number:
$172.06
Lead Time
CAL-IRPD2 Support Documentation
CAL-IRPD2Recalibration Service for Dual-Power-Range Germanium or InGaAs Photodiode Power Sensors
Part Number:  Serial Number:
$188.28
Lead Time
CAL-MIRPD Support Documentation
CAL-MIRPDRecalibration Service for Extended InGaAs or MCT Photodiode Power Sensors
Part Number:  Serial Number:
$307.32
Lead Time

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
  • 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 would like to have the PM320E Dual-Channel Power and Energy Meter Console calibrated with a sensor or sensors, please contact Tech Support for ordering information.

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. Please enter the Part # and Serial # of the sensor that requires recalibration prior to selecting Add to Cart.

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:
$193.68
Lead Time

Recalibration of Single-Channel Power & Energy Meter Electronics

Calibration Service Item # Compatible Consoles & Interfaces
CAL-PM1 PM100D, PM100A, PM400, PM100USB,
PM101 Series, PM102 Series, PM103 Series

This recalibration service is for the power and/or energy meter electronics of our single-channel consoles and interfaces. To ensure accurate measurements, we recommend recalibrating annually. If you would like to recalibrate a sensor with your console or interface, please see the sensor recalibration Item #s above; recalibration of a single-channel console or interface is included with these sensor recalibration services at no additional cost.

The table to the upper right lists the power and/or energy meter consoles and interfaces that can be calibrated using the CAL-PM1 recalibration service. To order the service, enter the Part # and Serial # of the console or interface that requires recalibration prior to selecting Add to Cart.

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:
$71.78
Lead Time
Additional Optical Power and Energy Meters
  • Photodiode Power Sensors

  • Thermal Power Sensors

  • Thermal Position & Power Sensors

  • Pyroelectric Energy Sensors

  • Digital Handheld Power & Energy Meter Console

  • Analog Handheld Power Meter Console

  • Power and Energy Meters, USB Interface

  • Touchscreen Power Meter Console with Multi-Touch

  • Power Meter Bundles

  • Dual-Channel Benchtop Power/Energy Meter Console

  • Wireless Power Meter with Sensor

  • Compact USB Power Meters

  • Field Power Meter for Terminated Fibers

  • Power Meter Tutorial