Optical Power Meter Kits

Overview
Specs
PM100A Display
PM100D Display
PM400 Display
Pin Diagrams
Software
Pulse Calculations
Console Selection
Feedback
Sensor Selection

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 mW^a	400 - 1100 nm	Slim Si (S130C)	Digital (PM100D)
PM400K3	500 pW - 500 mW^a	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.

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 combined sensor and console, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor. To order this service for only your console, please contact Tech Support.

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 Sensor^a
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 Range^b	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 Measurements	Relative 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 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

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)
	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.		A display with the same option as on the left for optical energy read outs.
Trend Graph (Power Mode)		Needle Tuning (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.		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)
	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.		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

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

Subpanel Display Options
Photodiode Sensors	Thermal Sensors	Pyroelectric Sensors
Current (I_DET)	Voltage (V_DET)	Voltage (V_DET)
Power (Φ_e)	Power (Φ_e)	Energy (W_DET)
Power in dBm (Φ_e)	Power in dBm (Φ_e)	N/A
Max	Max	Max
Min	Min	Min
Ratio (Max/Min)	Ratio (Max/Min)	Ratio (Max/Min)
Sensor Temperature^a	Sensor Temperature^a	N/A
Frequency	Frequency	Frequency
External NTC Temperature	External NTC Temperature	External NTC Temperature
Irradiance (E_e)	Irradiance (E_e)	Fluence (H_e)

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

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

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

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

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

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

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

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

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

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

Laser Calculator and Unit Converter

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 USE^a
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 USE^a
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)
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, which can be downloaded here.

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

The PM101 Series Power Meters are only compatible with version 2.0 or later.

Click to Enlarge
Measurement Mode: Set up and configure up to eight power meters.

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

Click to Enlarge
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.

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.

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
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 or Bluetooth^® wireless technology^a. 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.

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, Visual C++, and Visual C# 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.

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.

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
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	P_avg	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	P_peak	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	f_rep	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)
Description	Analog Power Measurements	Digital Power and Energy Measurements	Digital Power and Energy Measurements, Touchscreen Control	Dual Channel
Compatible Sensors	Photodiode and Thermal	Photodiode, Thermal, and 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	-	-		-
Attenuation Correction	-	-		-
External Trigger Input	-	-	-
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 Views^a
Numerical
Mechanical Analog Needle		-	-	-
Simulated Analog Needle	-
Bar Graph	-
Trend Graph	-
Histogram	-		-
Statistics
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	PM101A	PM101R	PM101U	PM100USB
(Click Photo to Enlarge)
Key Features	USB, RS232, UART, and Analog Operation	USB and Analog SMA Operation	USB and RS232 Operation	USB Operation	USB Operation
Compatible Sensors	Photodiode and Thermal				Photodiode, Thermal, and Pyroelectric
Housing Dimensions (H x W x D)	3.80" x 2.25" x 1.00" (96.5 x 57.2 x 25.4 mm)	3.94" x 2.25" x 1.00" (100.0 x 57.2 x 25.4 mm)	3.78" x 2.25" x 1.00" (95.9 x 57.2 x 25.4 mm)	3.68" x 2.25" x 1.00" (93.6 x 57.2 x 25.4 mm)	3.67" x 2.38 " x 1.13" (93.1 x 60.4 x 28.7 mm)
Channels	1
External Temperature Sensor Input (Sensor Not Included)	NTC Thermistor	-
External Humidity Sensor Input (Sensor not Included)	-
GPIO Ports	-
Source Spectral Correction	-
Attenuation Correction	-
External Trigger Input	-
Display
Type	No Built-In Display; Controlled via GUI for PC
Refresh Rate	Up to 1000 Hz^a				Up to 300 Hz^a
Measurement Views^b
Numerical	Requires PC^b
Mechanical Analog Needle	-
Simulated Analog Needle	Requires PC^b
Bar Graph	Requires PC^b
Trend Graph	Requires PC^b
Histogram	Requires PC^b
Statistics	Requires PC^b
Memory
Type	Internal Non-Volatile Memory for All Settings				-
Size	-
Power
Battery	-
External	5 VDC via USB or 5 to 36 VDC via DA-15	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 Meter 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??????

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. Our photodiode and thermal sensors are compatible with all of Thorlabs' current line of power meter consoles and interfaces, while our pyroelectric sensors are compatible with all except for the PM100A console and the PM101 series interfaces. 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 three 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.
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.

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

Pyroelectric Energy Sensors (Not Compatible with PM100A or PM101x)

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)

Sensor Options
(Arranged by Power Range)

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

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 power and energy meter kits, which can be ordered below (see Item # CAL1). Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

If you wish to recalibrate only your console, please contact Tech Support for details.

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

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.

If you wish to recalibrate only your console, please contact Tech Support for details.

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

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.

If you wish to recalibrate only your console, please contact Tech Support for details.

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

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 power and energy meter kits, which can be ordered below (see Item # CAL-S130). Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

If you wish to recalibrate only your console, please contact Tech Support for details.

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

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 power and energy meter kits, which can be ordered below (see Item # CAL2). Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

If you wish to recalibrate only your console, please contact Tech Support for details.

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

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 power and energy meter kits, which can be ordered below (see Item # CAL-S200). Enter only the Part # and Serial # of the sensor that requires recalibration and include the corresponding console for recalibration during shipment.

If you wish to recalibrate only your console, please contact Tech Support for details.

Recalibration Service for Photodiode Power Sensors

Calibration Service Item #	Compatible Sensors
CAL1	S120VC, S120C, S121C, S170C, S140C, S142C, S150C, S151C
CAL2	S122C, S144C, S145C, S146C, S154C, S155C
CAL-S130	S130VC, S130C
CAL-S132	S132C
CAL4	S148C, S180C

Thorlabs offers calibration services for our photodiode optical power sensors and consoles. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of the console is included with the recalibration of a sensor at no additional cost. If you wish to recalibrate only your power meter console, please contact Tech Support for details.

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

Recalibration Service for Thermal Power and Pyroelectric Energy Sensors

Sensor Type	Sensor Item #s
Thermal Power	S175C, S302C^a, S305C^a, S310C^a, S314C^a, S322C, S350C, S370C, S401C, S405C, S415C, S425C, S425C-L, S470C
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 the console is included with the recalibration of a sensor at no additional cost. If you wish to recalibrate only your power meter console, please contact Tech Support for details.

The table to the right lists the sensors for which this calibration 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 D89 adapter, which contains the sensor EEPROM.

View All »Matching Part Numbers

Optical Power Meter Kits

Features

Common Display Elements

Touchscreen Power Meter Console Front Panel

The Touchscreen Display

Numerical Display

Simulated Analog Needle

Graph View

Statistics Display

Spectral Correction

Attenuation Correction

Main Menu

Capture Settings

Sensor Measurement Settings

Temperature Sensor Settings

Laser Calculator and Unit Converter

PM100A and PM100D Power Meter Consoles

Optical Sensor Head Input

Analog Output

Computer ConnectionUSB Type Mini-B

PM400 Power Meter Console

Optical Sensor Head Input

Auxiliary Connector

Computer ConnectionUSB Type Mini-B

Analog Output

Temperature Sensor Input

Compatible Power Meters

Optical Power Monitor

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

Features

Pulsed Laser Emission: Power and Energy Calculations

Consoles

Interfaces

Power and Energy Sensor Selection Guide

Sensor Options(Arranged by Wavelength Range)

Sensor Options(Arranged by Power Range)

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

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

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

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

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

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

Recalibration Service for Photodiode Power Sensors

Recalibration Service for Thermal Power and Pyroelectric Energy Sensors

Computer Connection
USB Type Mini-B

Computer Connection
USB Type Mini-B

Sensor Options
(Arranged by Wavelength Range)

Sensor Options
(Arranged by Power Range)