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Power Meter Interfaces with External Readout![]()
PM101 Power Meter Interface with USB, RS232, and Analog Operation Compatible with C-Type Sensors (Not Included with Console) PM100USB Power and Energy Meter Interface with USB Operation PM102A Power Meter Interface for Thermal Sensors with USB and Analog SMA Operation PM101R Power Meter Interface with USB and RS232 Operation ![]() Please Wait
![]() Click to Enlarge All power meter interfaces have a DE-9 input connector. The PM101 and PM102 series interfaces also feature status indicator LEDs and a reset button to reboot the interface. Features
These interfaces provide communication between an attached sensor and a PC or other external control unit. They are designed to be controlled via an external device or operated autonomously using the analog output; there are no controls or display screens. The PM101 series power interfaces are compatible with Thorlabs' C-Series photodiode and thermal power sensors, while the PM102 series is suitable for use with our C-Series thermal power and thermal position & power sensors. These interfaces support several options for control and digital readout, including USB 2.0, RS232, UART, and analog output, depending on the model. Our PM100USB interface is controlled and provides digital readout via USB 2.0 only and is compatible with Thorlabs' C-Series photodiode, thermal power, and pyroelectric energy sensors. See the table to the right and the Model Comparison tab for a summary of features unique to each item #. The compact housings used for these interfaces can be post-mounted using ECM100 or ECM225 aluminum clamps; alternatively, multiple units can be stacked using the EPS225 plastic clamp. Sensor Compatibility
![]() Click to Enlarge Optical Power Monitor Software GUI: Position Trace Using with a Thermal Position & Power Sensor Computer Control System Design Fiber Photodiode Power Meter Option Recalibration Services Sensor Upgrade Service
Compatible Sensor Overview
For a full list of the sensor head specifications please visit the Photodiode Power Sensors, Thermal Power Sensors, Thermal Position & Power Sensors, or Pyroelectric Energy Sensors pages. For other information, please contact Tech Support. Analog OutputThe PM101 has two analog output ports assigned to pins in the DA-15 connector: AO1 and AO2. The signal from AO1 is a voltage value proportional to the selected measurement range, but is not wavelength or zero corrected; it is not sent through a DAC. AO2 delivers a measurement-range-independent voltage which is DAC controlled; the signal is proportional to a value set by the user through the OPM software or the SCPI/driver commands. The PM101A analog output functions in the same way as the AO2 output from the PM101, but access is provided via an SMA connector. See the manual for details. The PM102 has three analog output ports assigned to pins in the DA-15 connector: POWER, X POS, and Y POS. The signal from POWER is a measurement-range-independent voltage which is DAC controlled; the signal is proportional to a value set by the user through the OPM software or the SCPI/driver commands. The signals from X POS and Y POS are voltage values proportional to the relative position of the beam on the sensor surface and a value set by the user. The PM102A analog outputs function in the same way as the analog outputs from the PM102, but access is provided via SMA connectors. See the manual for details. The PM101, PM102, PM101A, and PM102A can be operated autonomously if only an analog output is required; only power needs to be supplied to the unit. Computer Connection (All Models)USB Type Mini-BUSB Type Mini-B to Type A Cable Included Sensor Connector (All Models)D-Type Female
Analog Output (PM101A & PM102A Only)SMARemote Interface Output (PM101 & PM102 Only)DA-15 Female
Remote Interface Output (PM101R Only)DE-9 Female
Standard Photodiode Sensor Mounting OptionsThorlabs Standard Photodiode Sensors compact design allows easy integration into existing setups. Typical mounting configurations including post, cage, and lens tube options are available. Shown on this page are several different choices for mounting these sensors. The Standard Photodiode Sensors are compatible with all S120-xx Series fiber adapters. FC/PC and SMA adapters are shown on the right. Adapters for FC/APC, SC, LC, and ST connections are also available. Flip up mounts are convenient for quick power measurements from a static location. The sensor can be placed in the path of the laser beam for the power measurement and flipped down during normal operation of the system. FM90 Right Angle Flip-Mounts are shown to the right. Thorlabs also offers the TRB1 Articulating Post Mount. The lockable articulating mount offers almost unlimited positioning of the sensor head. The articulating mount is shown on an S13xC Slim Photodiode Sensor below. The Standard Photodiode Sensors also feature SM1 threaded connections on the front face. The SM1 theading provides easy mounting to 1" lens tube systems and quick release mounts. Shown to the right are the KB1P Quick-Release Post Mount and QRC1A Quick-Release 30 mm Cage Mount. Both mounts feature SM1 threaded connections to the sensor heads. Note: Due to the thickness of the S12xC sensor, the QRC1A and CP44F (shown below) quick release mounts can only be fully removed from the cage system by backing them off an open end. The two mounts are easily removed from the cage system if only three cage mounts are used. See the picture on the right. Thorlabs also offers the CP44F 30 mm Cage Plates with Quick-Release Mounts. These mounts feature magnetically coupled mounting for easy and repeatable mounting. Note: Like the QRC1A, the CP44F can not be removed from a closed cage system. Slim Photodiode Sensor Mounting OptionsThorlabs' Slim Photodiode Sensors are designed to fit into tight optic arrangements such as cages, lens tubs, and optic dense free space arrangements. Shown to the right is a S130C Sensor inserted into a 30 mm cage system. The application shown highlights the ease for which the sensor can be inserted into the cage, and the minimal space needed to take a power measurement. The Slim Photodiode Sensors may also be mounted on a TRB1 Articulating Mount. This mount allows repeatable insertion of the sensor into tight optic arrangements. After the measurement is made, the sensor may be rotated out of the beam path for normal operation. Microscope Slide Photodiode Sensor Mounting Options![]() S170C Mounted on a Post The S170C may be post mounted via the 8-32 (M4) tap in the side of the housing. The S170C microscope slide power Sensor is designed so that it can be mounted directly in a microscope slide holder. The 76.0 mm x 25.2 x 5.0 mm sensor head has the same footprint as a standard microscope slide and is compatible with most standard upright and inverted microscopes. The photo to the right shows the power sensor flipped over so that the engraved back of the housing can be used for alignment. This power sensor also has an 8-32 (M4) tap for post mounting. In the photo to the far right, an RA90 is used with two Ø1/2" posts to mount the sensor head in a horizontal orientation. Integrating Sphere Photodiode Sensor Mounting OptionsThorlabs' Integrating Sphere Photodiode Sensor provides a low loss cavity for diverging, non-uniform, or off-axis beam measurements. These integrating spheres are ideal for all fiber based applications due to the beam divergence at the end of the fiber. Shown to the right is an S140C Integrating Sphere with S120-FC Fiber Adapter. Also shown is an S140C with a S140-BFA Bare Fiber Adapter. The Bare Fiber adapter features a mounting clamp and light shield to decrease interference from ambient light. Compact Fiber Photodiode Sensor Mounting OptionsThorlabs' Compact Fiber Photodiodes are the ideal choice for a portable, fiber coupled power meter. The S15xC sensors are compatible with a wide variety of fiber connections. PM20-xx adapters are available to couple FC, APC, SMA, ST, SC, and LC connectors with the sensors. Shown to the right is a S150C Sensor with FC and SMA connector adapters. Shown to the far right is a PM100D console with S150C sensor connected to a FC connectorized optical fiber. This setup is ideal for portable in the lab and in the field use. Pyroelectric Energy Sensor Mounting OptionsThorlabs' Pyroelectric Energy Sensors are ideal for measuring pulsed sources. These pyroelectric sensors provide direct energy readings for those sources. The sensors are designed to handle medium to high energy pulses from Excimer, YAG, and other high power lasers. Mounting options include post (with insulating adapter) and cage configurations, shown to the right. Compatible Power Meters
The Optical Power Monitor software is not compatible with the PM320E Benchtop Power Meter. Optical Power MonitorThe 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. The PM102 Series Power Meters are only compatible with version 2.1 or later. Optical Power Monitor GUI Software for Touchscreen, Handheld, and USB-Interface Power MetersFeatures
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. ![]() Click to Enlarge Power Measurement Mode: Set up and configure up to eight power meters. ![]() 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. ![]() 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. ![]() Click to Enlarge Position Tuning Mode: Tuning mode can be used with a thermal position & power sensor to aid in beam alignment. ![]() Click to Enlarge Position Statistics Mode: Statistics mode also provides aggregate information for thermal position & power sensors. ![]() 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. ![]() 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:
Power and Energy Sensor Selection GuideThere 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.
Sensor Options
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Posted Comments: | |
user
 (posted 2020-10-09 03:16:34.947) Hello, can you please provide the information how to use this power meter with Raspberry pi? wskopalik
 (posted 2020-10-13 05:37:28.0) Thank you very much for your inquiry.
A Raspberry Pi usually works with a Linux-based operating system. We can provide drivers for Ubuntu for the optical power meters which might be compatible with the Raspberry Pi operating system as well. Alternatively, you can e.g. use PM101 or PM101R which have an RS232 interface which is available on the Raspberry Pi as well. So you could communicate with the power meter directly on this interface and would not need any additional drivers.
I have contacted you directly to discuss these options in more detail. X Sun
 (posted 2020-07-08 12:33:29.57) I have downloaded the the power meter utility 2.2.
run the software my PM100USB doesn't appear in the device list window, rescan or unplug/plug didn't work. Though the PM100USB showed in windows Device manger with no error. MKiess
 (posted 2020-07-09 05:27:04.0) This is an response from Michael of Thorlabs. Thank you very much for your inquiry. The Thorlabs Optical Power Monitor (OPM) uses the newer power meter driver TLPM.dll instead of the formerly used NI-VISA™-based driver PM100D.dll.
Although both drivers are included in the download, the new TLPM.dll driver is automatically installed with the OPM software. The driver can be changed with the tool, Driver Switcher. So if you are using the OPM software, make sure that the TLPM.dll drivers used. I have contacted you directly to discuss further details. Ekin Kocabas
 (posted 2020-06-18 10:55:17.2) This is in response to the question by "Moritz Jung (posted 2020-05-28 09:26:52.493)"
I found the following functions in TLPM drivers useful for sending SCPI commands to the power meter (though I ended up not using this feature much). As MKiess mentioned, a call to TLPM_init is needed to initialize the connection first.
TLPM_writeRaw
TLPM_readRaw MKiess
 (posted 2020-06-19 09:23:48.0) This is a response from Michael at Thorlabs. Thank you very much for this feedback and for completing this information. Moritz Jung
 (posted 2020-05-28 09:26:52.493) Hello, I have a similar question as asked before in these comments: According to the manual, the new TLPM.dll driver can be used togehter with SCPI commands, "as long as the user establishes an USBTMC protocol". Can you give any details on how this is supposed to be done? Is it possible to use the OPM software without changing the driver?
When I switch to the old PM100D driver, the device can be accessed via NI-VISA. But I would prefer sticking to the up to date drivers.
Thanks for your answer! MKiess
 (posted 2020-06-05 05:21:47.0) This is a response from Michael at Thorlabs. Thank you very much for your inquiry. You can use the OPM software with the TLPM drivers as well as communicate with the TLPM drivers via SCPI commands.
When installing the OPM software, the TLPM drivers are installed by default and are used when the software is started.
When communicating via SCPI commands and using the TLPM driver, the device must be initialized with the TLPM functions, i.e. with the function "TLPM_init".
Afterwards the driver functions can be used together with the SCPI commands for communication. Ekin Kocabas
 (posted 2019-10-18 18:37:25.303) I use a S154C detector connected to PM101 and I observe the AO1 fast analog output of the power meter via an oscilloscope as I apply a square current pulse to a laser diode. With another detector/power meter combination I can see ~1 microsecond rise-time (detector limited), however, S154C + PM101 combination results in 28 ms (bandwidth high) or 38 ms (bandwith low setting) rise times. This is very different than the 100 KHz bandwidth in the PM101 specs. What is a typical rise-time that I should expect from S154C? Are there other detectors compatible with PM101 which would lead to faster rise times? If there is a special setting that I need to apply to observe KHz level signals could you let me know? Thank you. dpossin
 (posted 2019-10-25 06:22:33.0) Dear Ekin,
Thank you for your feedback. As the bandwith of our powermeter are limited to a maximum value of 100kHz, we can not provide a rise time of 1µs. The behaviour you are observing is due to a firmware bug which always kept the bandwith on low status. We corrected this issue with the last firmware update which we will provide on our website ASAP. I reached out to you in order to provide further assistance. Sajjad Haidar
 (posted 2019-10-03 11:02:33.577) Hello
I have been using PM101 interface with a thermal sensor.
I was wondering, do you have any Python support files for PM101?
Thanks MKiess
 (posted 2019-10-10 06:02:20.0) This is a response from Michael at Thorlabs. Thank you very much for your inquiry. I contacted you directly to send you the necessary information to control the PM101 in Phython. Ekin Kocabas
 (posted 2019-08-26 18:20:09.663) I had two questions on PM100USB power meters. [Q1] The latest version of the manual (ver 1.4, date 9 Aug 2019) states in Sec 7.1 that "the user can use the SCPI commands with the new TLPM.dll driver, as long as the user establishes an USBTMC protocol." Can you provide details on establishing a USBTMC connection to PM100USB, what additional piece of software do I need? [Q2] The new PM101x Write Your Own Application manual (Version: 1.0 Date: 12-Aug-2019) provides three tables that summarize status registers in Sec 3.4 for PM101 series power meters. Can you provide a similar set of tables for PM100USB? Thank you. MKiess
 (posted 2019-08-29 08:34:23.0) This is a response from Michael at Thorlabs. Thank you very much for your inquiry. For USBTMC a VISA installation is necessary. NI-VISA is the most widely used, but other implementations like TekVISA are also possible.
I contacted you directly to provide further support and to send you the desired status register for the PM100USB. hartwig s
 (posted 2019-07-09 08:09:16.16) Be advised when measuring DLP projectors with the PM100-USB: The auto-adjust function for the measurement range in the software specifically cannot handle DLP projectors (running ramp protocols). In general, it is better to manually set the measurement range beforehand. MKiess
 (posted 2019-07-12 09:08:08.0) This is a response from Michael at Thorlabs. Thank you very much for the feedback. Depending on the wavelength of the measured light and the sensor used, it is essential to set the wavelength in the Optical Power Monitor software to compensate the measurement result for the wavelength-dependent sensitivity of the sensor.
Therefore, when measuring DLP projectors, it is a good solution to adjust the settings manually. In general, it is recommended to use the default Auto Range ON setting.
Auto Range OFF allows you to set the measurement range manually, which is recommended for measuring pulsed light sources, for example. anish.goel
 (posted 2019-03-04 13:19:21.693) Hi, I am interfacing the TLPM in C# but unable to find any documentation regarding the functions (specifically "return values from functions" for example int setwavelength: What will it return. What will it mean)
Where do I find proper documentation for the SDK ? swick
 (posted 2019-03-08 03:23:38.0) This is a response from Sebastian at Thorlabs. Thank you for the inquiry.
After installing the software package you can find documentation about the functions at path:
C:\Program Files (x86)\IVI Foundation\VISA\WinNT\TLPM\Manual kocabass
 (posted 2019-02-19 16:45:38.96) Hello,
When I use the TLPM library drivers wrapped in python via ctypes, I see that I get different measurement results if I issue a 1 sec wait time between TLPM_setWavelength and TLPM_measPower vs the case when there is no wait time. It seems like the TLPM_setWavelength function call takes some time to finalize but it returns back to the enclosing program before then. I tried to look into various device registers to determine when setWavelength operation ends but could not find the right register location for that. I'd appreciate any comments on how I can make sure that the TLPM_setWavelength calls have done what they are supposed to do, without having to issue wait commands in between wavelength change and measure commands. nreusch
 (posted 2019-02-26 06:42:59.0) This is a response from Nicola at Thorlabs. Thank you very much for the inquiry. You could probably add a loop to your program using the TLPM_getWavelength command to check whether set and get wavelength match before the program actually performs a measurement. I will contact you directly for further assistance. ericshaner8d
 (posted 2018-12-26 09:24:11.07) The description under 'software' for the PM100USB says 'visual basic' examples are included with the driver. They are not, just C and C# are included. nreusch
 (posted 2019-01-03 07:26:25.0) This is a response from Nicola at Thorlabs. Thank you for the note. You are right about the fact that Visual Basic examples are not installed with software and drivers. We will correct the statement on our website. segreto
 (posted 2018-11-05 10:01:26.68) I have developed my own driver to read data at high speed from the PM100USB and found that the performance of this device is severely limited by the lack of the SCPI command "DATA:FORMAT {FLOAT, ASCII}" that would allow the user to choose to transfer data directly in binary format, thus saving the time required for the (in most of the cases totally useless) binary to ASCII conversion.
Do you plan to implement this command in the near future? swick
 (posted 2018-11-21 03:27:17.0) This is a response from Sebastian at Thorlabs. Thank you for sharing your findings with us. We will look into this.
At the time we do not plan to change the SCPI command set. juozas
 (posted 2018-10-24 13:02:44.853) Hello,
We're writing custom software that we need to work on multiple operating systems, including Linux and macOS. Are there still no drivers or other tools that would enable development for those operating systems? If writing our own drivers is the only option, where could we get complete documentation?
Thank you! swick
 (posted 2018-11-21 04:20:12.0) This is a response from Sebastian at Thorlabs. Thank you for the inquiry.
For Linux we can provide shared objects but for macOS we do not provide drivers at the moment.
I contacted you directly to get further information about the operating systems you work with. ebull
 (posted 2018-08-20 11:08:37.53) We use PM100USB and PM100D frequently for measurements with Thorlabs sensors and for measurements with our own photodiodes - the ability to use a custom sensor is very useful to us. We often do not need the screen of the PM100D, but we generally want the analog output that the PM100USB lacks.
A PM100USB with analog output would be the perfect device for many of our uses.
Elias nreusch
 (posted 2018-08-23 05:45:12.0) This is a response from Nicola at Thorlabs. Thank you for your suggestion. We are already working on the realization of such a device. I will contact you directly with further information. stefano.valle
 (posted 2018-07-31 15:51:34.8) It would be really useful to have a library for Matlab, or at least a set of command line to be able to control to set the power meter and retrieve the data required, without passing through Labview or C++ swick
 (posted 2018-08-08 04:36:30.0) This is a response from Sebastian at Thorlabs. Thank you for the feedback.
After establishing the USB connection SCPI commands could be used for remote control. I contacted you directly to provide a list of these commands. jim.mcginnis
 (posted 2018-06-06 07:57:31.237) Sent email to tech support regarding the issues below. jim.mcginnis
 (posted 2018-06-05 15:44:28.107) Followup:
Windows version is Windows 10, 1803 Creators Spring Update. Reinstalled all drivers from Thorlabs.
Thanks jim.mcginnis
 (posted 2018-06-05 15:37:13.973) We have constructed both 32bit and 64bit applications for reading an optical sensor connected to the PM100USB. The applications work correctly on Windows 7.
Building 64 bit C# application that combines the Kinesis 64 bit motion control libraries with the TLPM 64 bit libraries in a single application. Works as expected on Windows 7
Problem arises when building and running on Windows 10. The TLPM calls to get resources returns more than just the PM100USB devices. Selecting the correct device returned by the get resource call and trying to configure the device results in exception thrown by the TLPM call.
This does not happen on the Windows 7 platform. Only Windows 10.
Is this a known problem for the 64 bit TLPM libraries??
We have no issues with the Kinesis 64 bit libraries on Windows 10 or 7.
Suggestions??? jacyjacythomson
 (posted 2017-04-24 16:15:16.97) Hi I am trying to develop a small program in LabVIEW like the PM100D Simple Example.
I need the Commands to send to the instrument.
These are similar to :
SENS:AVER
There should be a Programming Command Manual or a link on your website.
Thank you, Jeff swick
 (posted 2017-04-26 04:52:50.0) This is a response from Sebastian at Thorlabs. Thank you for the inquiry.
An overview of SCPI commands for our Power Meter Consoles can be found in the manual at chapter "SCPI Commands".
I will contact you directly for further assistance. asmirnov
 (posted 2017-02-02 01:10:38.227) We use a number PM100USB interfaces. If two PM100USB connected simultaneously, some of them (about 15% of all) can hang up. It doesn`t depend on NI-VISA RTE/driver/firmware version, MotherBoard model etc. Is it a fabric or software defect? swick
 (posted 2017-02-03 05:41:03.0) This is a response from Sebastian at Thorlabs. Thank you for the feedback.
Using more than one PM100USB simultaneously at one operating system should work without problems.
The Power Meter Consoles are based on SCPI commands, which avoids driver conflicts in the operating system.
A known issue which avoids using multiple devices at the same time could be USB-Hubs, bad quality USB cables and/or a slow PC.
I will contact you directly for assistance and troubleshooting. ddeng
 (posted 2017-01-31 19:34:13.383) Could you support this PM100USB under Windows 10? I have one unit. wskopalik
 (posted 2017-02-01 03:22:18.0) This is a response from Wolfgang at Thorlabs. Thank you very much for your inquiry.
You can use the software provided on the website to operate the PM100USB. Supported operating systems are Windows® XP (32 bit) SP3 or Windows® Vista, 7, 8.1, or 10 (32 bit, 64 bit).
I will contact you directly to provide further assistance. ester0904bond
 (posted 2016-03-28 09:22:41.837) Can this modal do data sampling up to 100kHz?
if can, can we do that in labview?
thank you besembeson
 (posted 2016-03-28 09:49:18.0) Response from Bweh at Thorlabs USA: This may not be possible, even with a photodiode sensor though we have a 16 bit AD converter in the PM100USB. Speed loss could come from the queries of commands which always checks the availability/status of the sensor. You could write your own routines which allows for faster sampling rates but the USB 2.0 port will limit this and the PM100USB has no analog output to bypass this. You may consider instead the PM100D, PM100A or the PM200. roger_york
 (posted 2016-03-11 19:01:25.26) Is there anyway to interface the PM100USB with a MacBook Air? shallwig
 (posted 2016-03-14 11:53:36.0) This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. At the moment we have unfortunately no drivers available to run our power meter software with Apple OS. nherrick
 (posted 2015-10-22 16:40:57.477) What do you think are the chances of being able to use the PM100USB with a raspberry pi? tschalk
 (posted 2015-10-23 07:11:50.0) This is a response from Wolfgang at Thorlabs. Thank you for your inquiry. A Raspberry Pi usually works with a Linux-based operating system for which we unfortunately can't offer full support. There is however some information about the use of our powermeters in Linux and I will contact you directly about it. johnhobbs
 (posted 2015-09-30 13:34:26.513) Please fix your labview drivers for the PM100USB! I just upgraded to Labview 2015 and your labview drivers now hang up. I can send my labview driver if you want for the PM100USB. bottom line you cannot ini the PM100USB read the power and then close the device multiple times without it hanging up. I think your drives are not properly closing the resources for the device.
best,
John Hobbs shallwig
 (posted 2015-10-01 09:55:41.0) This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. We checked the drivers with Labview 2015 and could not reproduce this problem. I will contact you directly to troubleshoot this in more detail. bo.jing
 (posted 2015-05-26 17:42:20.707) The inner plastic (grey) USB connector on the PCB board inside the device detached itself at the soldering points. Can I send this unit back for repairs? We are quite disappointed at this obvious point of failure. shallwig
 (posted 2015-05-27 06:33:02.0) This is a response from Stefan at Thorlabs. Thank you very much for contacting us in this matter. We are really sorry for the inconveniences you had through this. I will contact you directly to handle the repair/exchange as soon as possible. a.andreski
 (posted 2015-05-12 17:41:44.017) Is there a way to read out a time-series of datapoints (lets say 1M samples) using your C-series photodioide sensors with a PM100USB but with a specific sampling rate? tschalk
 (posted 2015-05-13 07:02:08.0) This is a response from Thomas at Thorlabs. Thank you very much for your feedback. The maximum achievable sampling rate is about 300Hz. The GUI provides a function called fast logging which enables the maximum logging frequency of the unit. If you want to sample a signal in the MHz range you could use one of our amplified photodetectors in combination with a scope. I will contact you directly to discuss your application. catox
 (posted 2014-07-23 15:14:35.38) It would be great if you could offer a similar product with Serial via USB interface to remove the requirement for NI-VISA installation. shallwig
 (posted 2014-07-23 09:52:01.0) This is a response from Stefan at Thorlabs. Thank you very much for your feedback. At the moment it is not planned to offer the PM100USB in such a configuration. But the PM160 http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=7233&pn=PM160#7267 allows you to communicate with your PC without using VISA as it can additionally to USB also transmit data by Bluetooth. I will contact you directly to discuss your application in detail. bagresci
 (posted 2014-04-17 17:10:32.223) I found a method to communicate with pm100usb. I and using Agilient USBTMC kernel driver with Scientific linux 6.4. (http://www.home.agilent.com/upload/cmc_upload/All/usbtmc.html?&cc=KR&lc=kor). Below is my shell script :
./usbtmc_ioctl 1 reset
./usbtmc_ioctl 1 clear
echo INIT > /dev/usbtmc1
while((i<100))
do
./usbtmc_ioctl 1 reset
./usbtmc_ioctl 1 clear
echo READ? > /dev/usbtmc1
cat /dev/usbtmc1
((i=i+1))
done
./usbtmc_ioctl 1 reset
./usbtmc_ioctl 1 clear
echo ABOR > /dev/usbtmc1
./usbtmc_ioctl 1 reset
./usbtmc_ioctl 1 clear shallwig
 (posted 2014-04-17 08:49:33.0) This is a response from Stefan at Thorlabs. Thank you very much for your feedback and sharing this helpful information with us. I will contact you directly to discuss any open questions you have in this matter. hadmack
 (posted 2013-07-08 17:48:23.577) Could you please provide an update on the compatibility of PM100USB with the Linux USBTMC driver? tschalk
 (posted 2013-07-10 08:40:00.0) This is a Response from Thomas at Thorlabs. Thank you very much for your inquiry. To control the device with Linux you would need a USBTMC-driver for Linux and the instrument-driver-code for the corresponding SCPI commands to communicate via the USBTMC driver. The low level specifications are the followings: - Universal Serial Bus Test and Measurement Class Specification (USBTMC) Revision 1.0. USB Implementers Forum. April 14, 2003 - and - Universal Serial Bus Test and Measurement Class, Subclass USB488 Specification (USBTMC-USB488) Revision 1.0. April 14, 2003 - and the command structures are - IEEE Std 488.2-1992; IEEE Standard Codes, Formats, Protocols, and Common Commands For Use With IEEE Std 488.1-1987, IEE Standard Digital Interface for Programmable Instrumentation - and the used command format is - Standard Commands For Programmable Instruments (SCPI) -. You can use the source code of our instrument driver which is an open source code under LGPL. This one can be changed so that it is possible to use the Linux - USBTMC communication instead of the NI functions. I will contact you directly for more detailed information. jvigroux
 (posted 2012-06-20 09:54:00.0) A response from Julien at Thorlabs: Thank you for your feedback! The communication of the PM100USB is based on the USBTMC protocol. We rely on the VISA engine to create a stable overlayer on the USBTMC but if one does not want to use the VISA engine, it is of course possible to address the USB port directly at a USBTMC level. I will contact you to discuss further the possible approaches for the driver implementation you plan. gnishi
 (posted 2012-06-19 20:45:33.0) It would be great to provide the Linux driver or low level USB specification to write the driver. We don't need NI plat form, which consumes huge resources (incl. cost.), to drive this powermeter. jjurado
 (posted 2011-04-06 16:35:00.0) Response from Javier at Thorlabs to last poster: Thank you very much for your feedback. I will share your comments with our design engineers for the PM100USB. Please check back with us at techsupport@thorlabs.com if you would like to check on the status of this project. user
 (posted 2011-04-06 18:40:07.0) It would be great to have a product like this compatible with Android, and be able to use on a tablet or smartphone. jjurado
 (posted 2011-02-14 18:14:00.0) Response from Javier at Thorlabs to huw.major: Thank you for submitting your inquiry. The crashing is most likely due to an older firmware version of the PM100USB power meter. You can upgrade to version 1.3 by installing the Device Firmware Upgrade wizard and following the instructions. You can download the firmware application via the following link:
http://www.thorlabs.com/software_pages/ViewSoftwarePage.cfm?Code=PM100x
I will follow up with you directly. huw.major
 (posted 2011-02-14 11:37:25.0) Hi, I have 3 of these products and am trying to use them for prolonged testing purposes, > 1000Hrs constant use. I find them very easy to set up and use, but I have found that they constantly crash. I am using a Labview 2009 program, based on your supplied Labview example code, which seems to work fine most of the time. However, I am getting sporadic crashed of 1 or more power meters which require a power down to fix. The code is running under Windows 7, do you know of any issues with this combination? huw.major
 (posted 2011-02-14 11:32:47.0) Hi I have 3 of these products and am trying to use them for prolonged testing purposes, >1000Hrs constant use. I find them very easy to set up and use, but, I have found that they constantly crash. I am using a Labview 2009 program based on your supplied Labview code which seems to work fine most of the time. However, I am getting sporadic crashes of 1 or more power meters which require a power down to fix. The code is running under Windows 7, do you know of any problems with this combination? julien
 (posted 2011-01-28 11:41:52.0) a response from Julien at Thorlabs: Thank you for your feedback. Several PM100USBs can be connected to the same hub. We actually provide a small utility software that allows to readout up to 8 PM100USB simultaneously. This utility can be downloaded from the software page of the PM100USB. Concerning the Iphone compatibility, the PM100USB software is entirely NI VISA based, which is as of now unfortunately not compatible with Iphones yet. mobrien
 (posted 2011-01-27 12:46:16.0) I was wondering if you have given any thought to making a PM100USB App for the iPhone etc. Our company currently does not provide smartphones or tablets to its employees but you can kind of see where things are heading...
On a related topic, we have one of these, could I connect multiple PM100USBs to a single USB port via a USB hub?
Mike |
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.
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.
Item # | PM100A | PM100D | PM400 | PM320E |
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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 | - | - | ![]() |
- |
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 Viewsa | ||||
Numerical | ![]() |
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Mechanical Analog Needle | ![]() |
- | - | - |
Simulated Analog Needle | - | ![]() |
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Bar Graph | - | ![]() |
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Trend Graph | - | ![]() |
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Histogram | - | ![]() |
- | ![]() |
Statistics | ![]() |
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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%) |
Item # | PM101 | PM102 | PM101A | PM102A | PM101R | PM101U | PM102U | PM100USB |
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Key Features | USB, RS232, UART, and Analog Operation |
USB and Analog SMA Operation | USB and RS232 Operation | USB Operation | USB Operation | |||
Compatible Sensors | PM101 Series: Photodiode and Thermal Power PM102 Series: Thermal Power and Thermal Position & Power |
Photodiode and Thermal Power; Pyroelectric |
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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) |
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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 Hza | Up to 300 Hza | ||||||
Measurement Viewsb | ||||||||
Numerical | Requires PCb | |||||||
Mechanical Analog Needle | - | |||||||
Simulated Analog Needle | Requires PCb | |||||||
Bar Graph | Requires PCb | |||||||
Trend Graph | Requires PCb | |||||||
Histogram | Requires PCb | |||||||
Statistics | Requires PCb | |||||||
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 |
The PM101 Series Interfaces are compatible with all our C-Series photodiode and thermal power sensors. While all of the interfaces can be operated and powered with a PC via the mini-USB port, select interfaces have additional features such as UART or RS232 operation and analog output (see the table to the right). Models with analog output can be operated autonomously when connected to a power supply, without the need for an additional control device. All of the interfaces include reset buttons, allowing the systems to be easily rebooted.
The non-volatile memory in each interface retains the user's wavelength setting, sensitivity range, and output configuration upon shutting down or rebooting the unit, suitable for repeat measurements over a long period of time. A fast readout rate of 1000 samples per second allows active signal monitoring while the interface is in use. For precise measurements with thermal power sensors, these interfaces use nine voltage measurement ranges from 2 mV to 1 V, compared to only four ranges used by the PM100USB (see the Specs tab).
Please note that sensors are not included with these power meter interfaces. For information about our compatible sensors, please see the sensor descriptions below. Thorlabs offers a recalibration service for the power meter interfaces; contact Tech Support for details. Alternatively, if you have a corresponding sensor that requires recalibration, you can include the power meter interface with the sensor for recalibration at no additional cost. To order this service, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor. Also, we offer the USB-ABL-60 cable as a replacement for the USB cable included with each sensor; this cable includes a locking screw to prevent accidental disconnects.
The PM102 Series Interfaces are compatible with all our C-Series thermal power and thermal position & power sensors. While all of the interfaces can be operated and powered with a PC via the mini-USB port, select interfaces have additional features such as UART or RS232 operation and analog output (see the table to the right). Models with analog output can be operated autonomously when connected to a power supply, without the need for an additional control device. All of the interfaces include reset buttons, allowing the systems to be easily rebooted.
The non-volatile memory in each interface retains the user's wavelength setting, sensitivity range, and output configuration upon shutting down or rebooting the unit, suitable for repeat measurements over a long period of time. A fast readout rate of 1000 samples per second allows active signal monitoring while the interface is in use. For precise measurements with thermal power sensors, these interfaces use nine voltage measurement ranges from 2 mV to 1 V, compared to only four ranges used by the PM100USB (see the Specs tab).
Please note that sensors are not included with these power meter interfaces. For information about our compatible sensors, please see the sensor descriptions below. Thorlabs offers a recalibration service for the power meter interfaces; contact Tech Support for details. Alternatively, if you have a corresponding sensor that requires recalibration, you can include the power meter interface with the sensor for recalibration at no additional cost. To order this service, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor. Also, we offer the USB-ABL-60 cable as a replacement for the USB cable included with each sensor; this cable includes a locking screw to prevent accidental disconnects.
The PM100USB Power and Energy Meter Interface is compatible with all our C-Series photodiode, thermal, and pyroelectric sensors. This interface can be operated and powered by a PC via the mini-USB port. A readout rate of 300 samples per second allows active signal monitoring while the interface is in use.
Please note that sensors are not included with the PM100USB. For information about our compatible sensors, please see the sensor descriptions below. Thorlabs offers a recalibration service for the PM100USB; contact Tech Support for details. Alternatively, if you have a corresponding sensor that requires recalibration, you can include the PM100USB with the sensor for recalibration at no additional cost. To order this service, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor.
These Standard Photodiode Power Sensors are ideal for metering low power coherent and incoherent sources from the UV to the NIR. Each NIST-Traceable, calibrated sensor features an integrated viewing target for easy alignment, enhanced shielding against electromagnetic interference, an over-temperature-alert device, and a large Ø9.5 mm sensor aperture. The sensors are compatible with 30 mm cage systems, Ø1/2" posts, and SM1 (1.035"-40) lens tubes, and are ideal for free-space and fiber-coupled sources.
Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL1 for Si sensors and Item # CAL2 for Ge sensors).
Item #a | S120VC | S120C | S121C | S122C |
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Sensor Image (Click the Image to Enlarge) |
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Aperture Size | Ø9.5 mm | |||
Wavelength Range | 200 - 1100 nm | 400 - 1100 nm | 400 - 1100 nm | 700 - 1800 nm |
Power Range | 50 nW - 50 mW | 500 nW - 500 mW | 50 nW - 40 mW | |
Detector Type | Si Photodiode (UV Extended) | Si Photodiode | Ge Photodiode | |
Linearity | ±0.5% | |||
Resolutionb | 1 nW | 10 nW | 2 nW | |
Measurement Uncertaintyc | ±3% (440 - 980 nm) ±5% (280 - 439 nm) ±7% (200 - 279 nm, 981 - 1100 nm) |
±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm) |
±5% | |
Responsivityd (Click for Plot) | ![]() Raw Data |
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Coating/Diffuser | Reflective ND (OD1.5)e | Reflective ND (OD1)f | Reflective ND (OD2)g | Absorptive ND (Schott NG9) |
Head Temperature Measurement | NTC Thermistor 4.7 kΩ | |||
Housing Dimensions | Ø30.5 mm x 12.7 mm | |||
Cable Length | 1.5 m | |||
Post Mountinge,f,g | Universal 8-32 / M4 Tap, Post Not Included | |||
Aperture Thread | External SM1 (1.035"-40) | |||
Compatible Fiber Adapters | S120-FC, S120-APC, S120-SMA, S120-ST, S120-LC, and S120-SC (Not Included) | |||
Compatible Consoles | PM400, PM100D, PM100A, and PM320E | |||
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, and PM100USB |
These Slim Photodiode Power Sensors are designed to take optical source power measurements in locations where space and accessibility are at a premium. The 5 mm thin sensor end can fit between closely spaced optics, cage systems, and other arrangements where standard power meters may not fit. The NIST-Traceable, calibrated sensors also feature a large Ø9.5 mm sensor aperture and slideable neutral density filter for dual power ranges in one compact device.
A separately available SM1A29 adapter can be attached by 2 setscrews to any S130 series power sensor to mount fiber adapters, light shields, filters or any other SM1-threaded (1.035"-40) mechanics or optics. The FBSM Mount allows our S130 series power sensors to be mounted vertically into FiberBench systems for stable mounting with a minimal footprint.
Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-S130 for Si sensors and Item # CAL-S132 for Ge sensors).
Item #a | S130VC | S130C | S132C | |
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Sensor Image (Click the Image to Enlarge) |
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Aperture Size | Ø9.5 mm | |||
Wavelength Range | 200 - 1100 nm | 400 - 1100 nm | 700 - 1800 nmb | |
Power Range (with Filter) |
500 pW - 0.5 mWc (Up to 50 mW)c |
500 pW - 5 mW (Up to 500 mW) |
5 nW - 5 mW (Up to 500 mW) |
|
Detector Type | Si Photodiode (UV Extended) | Si Photodiode | Ge Photodiode | |
Linearity | ±0.5% | |||
Resolution | 100 pWd | 1 nWe | ||
Measurement Uncertaintyf | ±3% (440 - 980 nm) ±5% (280 - 439 nm) ±7% (200 - 279 nm, 981 - 1100 nm) |
±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm) |
±5% | |
Responsivityg (Click for Plot) | ![]() Raw Data |
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Coating/Diffuser | Reflective ND (OD1.5)c | Reflective ND (OD2)h | Absorptive ND (Schott NG9/KG3)b | |
Housing Dimensions | 150 mm x 19 mm x 10 mm; 5 mm Thickness on Sensor Side | |||
Cable Length | 1.5 m | |||
Post Mounting | 8-32 and M4 Taps | |||
Adapters (Not Included) | SM1A29: Add SM1 Thread and Viewing Target to Aperture Fiber Adapters Compatible with SM1A29 Adapter: S120-FC, S120-APC, S120-SMA, S120-ST, S120-LC, and S120-SC FBSM: Integrate Sensor into FiberBench Setups |
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Compatible Consoles | PM400, PM100D, PM100USB, PM100A, and PM320E | |||
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, and PM100USB |
Item #a | S170C |
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Sensor Image (Click Image to Enlarge) |
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Overall Dimensions | 76.0 mm x 25.2 mm x 5.0 mm (2.99" x 0.99" x 0.20") |
Active Detector Area | 18 mm x 18 mm |
Input Aperture | 20 mm x 20 mm |
Wavelength Range | 350 - 1100 nm |
Optical Power Working Range | 10 nW - 150 mW |
Detector Type | Silicon Photodiode |
Linearity | ±0.5% |
Resolutionb | 1 nW |
Calibration Uncertaintyc | ±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm) |
Responsivityd (Click for Plot) | ![]() Raw Data |
Neutral Density Filter | Reflective (OD 1.5) |
Cable Length | 1.5 m |
Post Mounting | Universal 8-32 / M4 Tap, Post Not Included |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E |
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, and PM100USB |
The S170C Microscope Slide Power Sensor Head is a silicon photodiode sensor designed to measure the power at the sample in microscopy setups. The silicon photodiode can detect wavelengths between 350 nm and 1100 nm at optical powers between 10 nW and 150 mW. The sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.
The photodiode has an 18 mm x 18 mm active area and is contained in a sealed housing behind a neutral density (ND) filter with OD 1.5. A 20 mm x 20 mm indentation around the surface of the ND filter is sized to accept standard microscope cover slips. An immersion medium (water, glycerol, oil) may be placed in this well directly over the ND filter, or a cover slip may be inserted first to simplify clean up. The gap between the photodiode and the neutral density filter has been filled with an index matching gel in order to prevent internal reflections from causing significant measurement errors when using high NA objectives with oil or water.
The bottom of the sensor housing features a laser-engraved grid to aid in aligning and focusing the beam. In standard microscopes, this grid can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the transmitted illuminator to align the grid on the detector housing with the beam, thereby centering the sensor in front of the objective. Alternatively, the diffusive surface of the ND filter can be used as a focusing plane.
Sensor specifications and the NIST- and PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. We recommend yearly recalibration to ensure accuracy and performance. Calibration may be ordered using the CAL1 recalibration service available below. Please contact technical support for more information.
Thorlabs also offers a Microscope Slide Sensor Head with a thermal sensor; for complete specifications, the full presentation can be found here.
Item #a | S175C |
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Sensor Image (Click Image to Enlarge) |
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Active Detector Area | 18 mm x 18 mm |
Wavelength Range | 0.3 - 10.6 µm |
Power Range | 100 µW - 2 W |
Detector Type | Thermal Surface Absorber (Thermopile) |
Linearity | ±0.5% |
Resolutionb | 10 µW |
Measurement Uncertaintyc | ±3% @ 1064 nm; ±5% @ 300 nm - 10.6 µm |
Response Time | 3 s (<2 s from 0 to 90%) |
Housing Dimensions | 76 mm x 25.2 mm x 4.8 mm (2.99" x 0.99" x 0.19") |
Cable Length | 1.5 m |
Housing Features | Integrated Glass Cover Engraved Laser Target on Back |
Post Mounting | N/A |
Cage Mounting | N/A |
Aperture Thread | N/A |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E |
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, PM102, PM102A, PM102U, and PM100USB |
The S175C Microscope Slide Thermal Power Sensor Head is designed to measure the power at the sample in microscopy setups. The thermal sensor can detect wavelengths between 300 nm and 10.6 µm at optical powers between 100 µW and 2 W. The sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.
The thermal sensor has an 18 mm x 18 mm active area and is contained in a sealed housing behind a glass cover. An immersion medium (water, glycerol, oil) may be placed over the glass cover plate.
As seen in the image to the right, the bottom of the sensor housing features a laser-engraved target to aid in aligning and focusing the beam. In standard microscopes, the target can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the trans-illumination lamp and align the target on the detector housing with the beam; this will center the sensor in front of the objective.
Sensor specifications and the NIST- and PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. We recommend yearly recalibration to ensure accuracy and performance. Calibration may be ordered using the CAL-S200 recalibration service available below. Please contact technical support for more information.
Thorlabs also offers a Microscope Slide Sensor Head with a photodiode sensor for low-power, high-resolution measurements; the full presentation may be found here.
These Integrating Sphere Photodiode Power Sensors are the ideal choice for power measurements independent of beam uniformity, divergence angle, beam shape, or entrance angle, making them excellent for use with fiber sources and off-axis free space sources.
Our integrating spheres are designed for wavelength ranges from the visible through the NIR. Sensor heads for use between 350 and 2500 nm use a single Ø1" or Ø2" sphere made from Zenith® PTFE and feature a black housing to minimize reflected light around the entrance aperture. These sensors use either a silicon photodiode for detection in the 350 - 1100 nm range or an InGaAs photodiode for detection in the 800 - 1700 nm, 900 - 1650 nm, or 1200 - 2500 nm wavelength range.
The S180C integrating sphere for 2.9 - 5.5 µm uses two connected, gold-plated Ø20 mm spheres, with an entrance port in the first sphere and a port for the MCT (HgCdTe) detector located in the second sphere. Compared to single-sphere designs, the two-sphere configuration improves device sensitivity by minimizing the internal sphere surface area while still effectively shielding the detector from direct illumination. This design reduces the effect of input angle, divergence, and beam shape on the measurement result by effectively shielding the photodiode without the use of a baffle or other shielding mechanism.
The integrating spheres below feature large Ø5 mm, Ø7 mm, or Ø12 mm apertures, externally SM1-threaded (1.035"-40) front connections, enhanced shielding against electromagnetic interference, and an over-temperature alert sensor. Because of the large active detector areas of these sensors, the included S120-FC fiber adapter can be used with FC/PC- or FC/APC-terminated fiber. The externally SM1-threaded adapter can be removed using a size 1 screwdriver to place components closer to the window. NIST-traceable data is stored in the sensor connector.
Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below. See Item # CAL1 for the S140C and S142C Si sensors; Item # CAL2 for the S144C, S145C, and S146C InGaAs sensors; and Item # CAL4 for the S148C InGaAs sensor or S180C MCT sensor.
Item #a | S140C | S142C | S144C | S145C | S146C | S148C | S180C |
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Sensor Image (Click the Image to Enlarge) |
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Aperture | Ø5 mm | Ø12 mm | Ø5 mm | Ø12 mm | Ø5 mm | Ø7 mm | |
Wavelength Range | 350 - 1100 nm | 800 - 1700 nm | 900 - 1650 nm | 1200 - 2500 nm | 2.9 µm - 5.5 µm | ||
Power Range | 1 µW - 500 mW | 1 µW - 5 W | 1 µW - 500 mW | 1 µW - 3 W | 10 µW - 20 W | 1 µW - 1 W | 1 µW - 3 W |
Detector Type | Si Photodiode | InGaAs Photodiode | MCT (HgCdTe) Photodiode |
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Linearity | ±0.5% | ||||||
Resolutionb | 1 nW | 10 nW | 1 nW | 10 nW | |||
Measurement Uncertaintyc |
±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm) |
±5% | |||||
Responsivityd (Click for Plot) |
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Integrating Sphere Material (Size) |
Zenith® PTFE (Ø1") |
Zenith® PTFE (Ø2") |
Zenith® PTFE (Ø1") |
Zenith® PTFE (Ø2") |
Zenith® PTFE (Ø1") |
Gold Plating (Two Ø20 mm Spheres) |
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Head Temperature Measurement |
NTC Thermistor 4.7 kΩ | ||||||
Housing Dimensions |
Ø45 mm x 30.5 mm | 70 mm x 74 mm x 70 mm | Ø45 mm x 30.5 mm | 70 mm x 74 mm x 70 mm | Ø45 mm x 30.5 mm | 59.0 mm x 50.0 mm x 28.5 mm |
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Cable Length | 1.5 m | ||||||
Post Mounting | 8-32 and M4 Taps | ||||||
Aperture Thread | Included Adapter with SM1 (1.035"-40) External Thread | ||||||
Compatible Fiber Adapters |
S120-FC (Included) S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, and S140-BFA Bare Fiber Adapter (Not Included) |
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Compatible Consoles | PM400, PM100D, PM100A, and PM320E | ||||||
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, and PM100USB |
The S15xC Compact Fiber Photodiode Power Sensor is designed to take power measurements from a wide variety of fiber coupled sources. The compact sensor, integrated into the power meter connector, features a unique integrated design housing the photodiode sensor, fiber coupling, and NIST-traceable data. Standard FC (and SMA - S150C and S151C) connectors are easily interchanged with a variety of standard fiber connectors.
Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL1 for Si sensors and Item # CAL2 for InGaAs sensors).
Item #a | S150C | S151C | S154C | S155C |
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Sensor Image (Click the Image to Enlarge) |
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Included Connectors | FCb & SMA | FCb | ||
Wavelength Range | 350 - 1100 nm | 400 - 1100 nm | 800 - 1700 nm | |
Power Range | 100 pW to 5 mW (-70 dBm to +7 dBm) |
1 nW to 20 mW (-60 dBm to +13 dBm) |
100 pW to 3 mW (-70 dBm to +5 dBm) |
1 nW to 20 mW (-60 dBm to +13 dBm) |
Detector Type | Si Photodiode | InGaAs Photodiode | ||
Linearity | ±0.5% | |||
Resolutionc | 10 pW (-80 dBm) | 100 pW (-70 dBm) | 10 pW (-80 dBm) | 100 pW (-70 dBm) |
Measurement Uncertaintyd | ±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm) |
±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm) |
±5% | |
Responsivityf (Click for Details) | ![]() Raw Data |
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Coating/Diffuser | N/A | Absorptive ND (Schott NG3) | N/A | |
Head Temperature Measuremente | NTC Thermistor 3 kΩ | |||
Aperture Thread | External SM05 (0.535"-40) | |||
Fiber Adapters | Included: PM20-FC and PM20-SMA Optional: PM20-APC, PM20-LC, PM20-SC, and PM20-ST |
Included: PM20-FC Optional: PM20-APC, PM20-LC, PM20-SC, PM20-ST, and PM20-SMA |
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Compatible Consoles | PM400, PM100D, PM100A, and PM320E | |||
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, and PM100USB |
Item #a | S401C | S405C |
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Sensor Image (Click the Image to Enlarge) |
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Wavelength Range | 190 nm - 20 µm | 190 nm - 20 µm |
Optical Power Range | 10 µW - 1 W (3 Wb) | 100 µW - 5 W |
Input Aperture Size | Ø10 mm | Ø10 mm |
Active Detector Area |
10 mm x 10 mm | 10 mm x 10 mm |
Max Optical Power Density | 500 W/cm² (Avg.) | 1.5 kW/cm² (Avg.) |
Detector Type | Thermal Surface Absorber (Thermopile) with Background Compensation |
Thermal Surface Absorber (Thermopile) |
Linearity | ±0.5% | ±0.5% |
Resolutionc | 1 µW | 5 µW |
Measurement Uncertaintyd | ±3% @ 1064 nm ±5% @ 190 nm - 10.6 µm |
±3% @ 1064 nm ±5% @ 250 nm - 17 µm |
Response Timee | 1.1 s | 1.1 s |
Cooling | Convection (Passive) | |
Housing Dimensions (Without Adapter) |
(1.30" x 1.69" x 0.59") |
40.6 mm x 40.6 mm x 16.0 mm (1.60" x 1.60" x 0.63") |
Temperature Sensor (In Sensor Head) |
NTC Thermistor | NTC Thermistor |
Cable Length | 1.5 m | |
Post Mounting | Universal 8-32 / M4 Taps (Post Not Included) |
Universal 8-32 / M4 Taps (Post Not Included) |
30 mm Cage Mounting | - | Two 4-40 Tapped Holes & Two Ø6 mm Through Holes |
Aperture Threads | - | Internal SM05 |
Accessories | Externally SM1-Threaded Adapter Light Shield with Internal SM05 Threading |
Externally SM1-Threaded Adapter |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E | |
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, PM102, PM102A, PM102U and PM100USB |
Thorlabs offers two broadband thermal power sensors designed to measure low optical power sources with high resolution. Each thermal sensor's broadband coating has a flat spectral response over a wide wavelength range, as shown in the plot below.
An aperture size of Ø10 mm allows for easy alignment and measurement of large-spot-size laser sources. For easy integration with Thorlabs' lens tube systems and SM1-threaded (1.035"-40) fiber adapters, each sensor has either external SM1 threading or includes an externally SM1-threaded adapter.
The S401C uses active thermal background compensation to provide low-drift power measurements. This is implemented through the use of two similar sensor circuits. One sensor circuit is the type all thermal power sensors share: it measures heat flow from light absorber to heat sink. The other sensor circuit monitors the ambient temperature. It is located within the housing and measures heat flow from heat sink towards the absorber. The measurements of the two sensor circuits are subtracted, which minimizes the effect of thermal drift on the laser power measurement. (For information about how the external thermal disturbances can affect thermal power sensor readings, see the Operation tab.) The broadband coating used on this thermal sensor offers high absorption at wavelengths between 0.19 and 20 µm (shown in the graph), which makes the sensor ideal for use with aligning and measuring Mid-IR Quantum Cascade Lasers (QCLs). The included, internally SM05-threaded (0.535"-40) light shield is shown in the photo to the right.
The S405C has internal SM05 (0.535"-40) threading that is directly compatible with SM05 lens tubes, and it can also connect directly to Thorlabs' 30 mm Cage Systems.
Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-S200).
Item #a | S415C | S425C |
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Sensor Image (Click Image to Enlarge) |
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Wavelength Range | 190 nm - 20 µm | 190 nm - 20 µm |
Optical Power Range | 2 mW - 10 W (20 Wb) | 2 mW - 10 W (20 Wb) |
Input Aperture Size | Ø15 mm | Ø25.4 mm |
Active Detector Area |
Ø15 mm | Ø27 mm |
Max Optical Power Density |
1.5 kW/cm² (Avg.) | 1.5 kW/cm² (Avg.) |
Detector Type | Thermal Surface Absorber (Thermopile) | |
Linearity | ±0.5% | ±0.5% |
Resolutionc | 100 µW | 100 µW |
Measurement Uncertaintyd |
±3% @ 1064 nm ±5% @ 250 nm - 17 µm |
±3% @ 1064 nm ±5% @ 250 nm - 17 µm |
Response Timee | 0.6 s | 0.6 s |
Cooling | Convection (Passive) | |
Housing Dimensions (Without Adapter) |
(2.00" x 2.00" x 1.38") |
(2.00" x 2.00" x 1.38") |
Temperature Sensor (In Sensor Head) |
NTC Thermistor | |
Cable Length | 1.5 m | |
Post Mounting | Universal 8-32 / M4 Taps (Post Not Included) |
Universal 8-32 / M4 Taps (Post Not Included) |
30 mm Cage Mounting | - | - |
Aperture Threads | Internal SM1 | Internal SM1 |
Removable Heatsink | Yes | Yes |
Accessories | Externally SM1-Threaded Adapter | Externally SM1-Threaded Adapter |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E | |
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, PM102, PM102A, PM102U and PM100USB |
These thermal power sensors are designed for general broadband power measurements of low and medium power light sources. All include an externally SM1-threaded (1.035"-40) adapter, with threading concentric with the input aperture. The adapters are useful for mounting Ø1" Lens Tubes and Fiber Adapters (available below). The apertures of the S415C and S425C have internal SM1 threading.
These sensors operate with fast (<0.6 s) natural response times, and their removable heat sinks provide a high degree of flexibility to those interested in integrating them into custom setups or replacing the included heat sink with one that is water or fan cooled. If replacing the heat sink, please note that the replacement must provide heat dissipation adequate for the application.
Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-S200).
These thermal power sensors are designed for general broadband power measurements of low and medium power light sources. With the exception of the S350C, all include an adapter with external SM1 (1.035"-40) threading concentric with the input aperture. This allows the sensors to be integrated into existing Ø1" lens tube systems in addition to being compatible with fiber adapters (available below). The aperture of the S425C-L has internal SM1 threading.
The S425C-L operates with a fast (<0.6 s) natural response time and has a removable heat sink, which provides a high degree of flexibility to those interested in integrating them into custom setups or replacing the included heat sink with one that is water or fan cooled. If replacing the heat sink, please note that the replacement must provide heat dissipation adequate for the application.
Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-S200).
Item #a | S350C | S425C-L | S322C |
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Sensor Image (Click Image to Enlarge) |
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Wavelength Range | 190 nm- 1.1 µm, 10.6 µm | 190 nm - 20 µm | 250 nm - 11 µm |
Optical Power Range | 10 mW - 40 W (60 Wb) | 2 mW - 50 W (75 Wb) | 100 mW - 200 W (250 Wb) |
Input Aperture Size | Ø40 mm | Ø25.4 mm | Ø25 mm |
Active Detector Area |
Ø40 mm | Ø27 mm | Ø25 mm |
Max Optical Power Density | 2 kW/cm² (Avg.) | 1.5 kW/cm² (Avg.) | 4 kW/cm² (Avg., CO2) |
Detector Type | Thermal Surface Absorber (Thermopile) | ||
Linearity | ±1% | ±0.5% | ±1% |
Resolutionc | 1 mW | 100 µW | 5 mW |
Measurement Uncertaintyd | ±3% @ 351 nm ±5% @ 190 nm - 1100 nm |
±3% @ 1064 nm ±5% @ 250 nm - 17 µm |
±3% @ 1064 nm ±5% @ 266 nm - 1064 nm |
Response Timee | 9 s (1 s from 0 to 90%) |
0.6 s | 5 s (1 s from 0 to 90%) |
Cooling | Convection (Passive) | Forced Air with Fanf | |
Housing Dimensions (Without Adapter, if Applicable) |
100 mm x 100 mm x 54.2 mm (3.94" x 3.94" x 2.13") |
100.0 mm x 100.0 mm x 58.0 mm (3.94" x 3.94" x 2.28") |
100 mm x 100 mm x 86.7 mm (3.94" x 3.94" x 3.41") |
Temperature Sensor (In Sensor Head) |
NTC Thermistor | ||
Cable Length | 1.5 m | ||
Post Mounting | M6 Threaded Taps, Includes Ø1/2" Post, 75 mm Long |
Universal 8-32 / M4 Taps (Post Not Included) |
M6 Threaded Taps, Includes Ø1/2" Post, 75 mm Long |
30 mm Cage Mounting | - | - | Four 4-40 Tapped Holes |
Aperture Threads | - | Internal SM1 | - |
Removable Heatsink | - | Yes | - |
Accessories | - | Externally SM1-Threaded Adapter | Externally SM1-Threaded Adapter |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E | ||
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, PM102, PM102A, PM102U and PM100USB |
Item #a | S370C | S470C |
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Sensor Image (Click the Image to Enlarge) |
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Wavelength Range | 400 nm - 5.2 µm | 250 nm - 10.6 µm |
Optical Power Range | 10 mW - 10 W (15 Wb) | 100 µW - 5 W (Pulsed and CW) |
Input Aperture Size | Ø25 mm | Ø15 mm |
Active Detector Area |
Ø25 mm | Ø16 mm |
Max Optical Power Density | 35 W/cm² (Avg.); 100 GW/cm² (Peak) | |
Detector Type | Thermal Volume Absorber (Thermopile) | |
Linearity | ±1% | ±0.5% |
Resolutionc | 250 µW | 10 µW |
Measurement Uncertaintyd | ±3% @ 1064 nm ±5% @ 400 nm - 1064 nm |
±3% @ 1064 nm ±5% @ 250 nm - 10.6 µm |
Response Timee | 45 s (3 s from 0 to 90%) |
6.5 s (<2 s from 0 to 90%) |
Cooling | Convection (Passive) | |
Housing Dimensions (Without Adapter, if Applicable) |
(2.95" x 2.95" x 2.02") |
(1.77" x 1.77" x 0.71") |
Temperature Sensor (In Sensor Head) |
N/A | N/A |
Cable Length | 1.5 m | |
Post Mounting | M6 Threaded Taps, Includes Ø1/2" Post, 75 mm Long |
Universal 8-32 / M4 Tap (Post Not Included) |
30 mm Cage Mounting | Four 4-40 Tapped Holes | - |
Aperture Threads | - | External SM1 |
Accessories | - | |
Compatible Consoles | PM400, PM100D, PM100A, and PM320E | |
Compatible Interfaces | PM101, PM101A, PM101R, PM101U, PM102, PM102A, PM102U and PM100USB |
The S370C and S470C Thermal Sensors are designed to measure short and highly energetic laser pulses. All of these units are post-mountable for free-space applications and feature NIST-traceable data stored in the sensor connector.
These thermal power sensors are unique in that they have thermal volume absorbers, where our other thermal power sensors have thermal surface absorbers. The volume absorber consists of a Schott glass filter. Incident pulses are absorbed and the heat is distributed throughout the volume. In this way, pulses that would have damaged the absorption coating of a thermal surface absorber are safely measured by these thermal volume absorbers.
The S370C features a large Ø25 mm aperture ideal for large-spot-size beams, and it is compatible with average powers from 10 mW to 10 W (CW).
In comparison, the S470C is faster, as the glass absorber volume is reduced and other design parameters have been optimized for speed. This results in a different optical power range, with the ability to measure powers down to 100 µW. The Ø15 mm aperture is of the S470C is smaller, and it has a lower max average power of 5 W. Its 10 µW resolution is better than the 250 µW resolution of the S370C.
Thorlabs offers a recalibration service for these sensors, which can be ordered below (see Item # CAL-S200).
Item #a | S440C | S442C |
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Sensor Image (Click the Image to Enlarge) |
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Wavelength Range | 190 nm - 20 µm | |
Optical Power Range | 0.5 mW - 5 W | 10 mW - 50 W |
Input Aperture Size | 17 mm x 17 mm | Ø17.5 mm |
Max Optical Power Density | 1.5 kW/cm2 | |
Detector Type | Four Thermopiles in Quadrant Configuration | |
Linearity | ±1% | |
Resolutionb | 50 µW | 1 mW |
Measurement Uncertaintyc | ±5% at 1064 nm; ±7% for 250 nm - 17 µm |
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Position Resolution | 5 µm | 10 µm |
Position Accuracyd | 50 µm (Ø1 mm Circle) 200 µm (Ø6 mm Circle) |
100 µm (Ø1 mm Circle) 300 µm (Ø6 mm Circle) |
Position Repeatabilityd | 15 µm (Ø1 mm Circle) 100 µm (Ø6 mm Circle) |
25 µm (Ø1 mm Circle) 150 µm (Ø6 mm Circle) |
Response Timee | <1.1 s | <0.6 s |
Cooling | Convection (Passive) | |
Housing Dimensions (Without Adapter) |
40.6 mm x 40.6 mm x 8.9 mm (1.60" x 1.60" x 0.35") |
100.0 m x 100.0 mm x 57.8 mm (3.94" x 3.94" x 2.28") |
Temperature Sensor (In Sensor Head) |
NTC Thermistor | |
Cable Length | 1.5 m | |
Post Mounting | One 8-32 / M4 Universal Tap | Two 8-32 / M4 Universal Taps |
30 mm Cage Mounting | Four Ø6 mm Through Holes | - |
Aperture Threads | - | Internal SM1 (1.035"-40) |
Accessories | - | Externally SM1-Threaded Adapter |
Compatible Consoles | PM400, PM102, PM102A, and PM102U |
The S440C and S442C position sensors use thermopiles to obtain high-resolution measurements of a beam's position and power. The detector area consists of four thermopile-based sensors arranged as quadrants of a square. The quadrants are mechanically coupled but electrically isolated; thus, heat is free to flow across the entire active area, but the signal from each quadrant measures the response in only that quadrant's thermopile. The XY position of the beam is determined by comparing the signal intensity measured for each quadrant.
The S440C detector is optimized for high sensitivity from 0.5 mW to 5 W. The housing features four Ø6 mm through holes for compatibility with 30 mm cage systems, as well as an 8-32 / M4 universal tap for post mounting. The S442C detector is compatible with higher power levels from 10 mW up to 50 W. The housing includes a heat sink for superior heat dissipation, as well as two 8-32 / M4 universal taps for post mounting.
Both detectors feature C-Series connectors which contain NIST- and PTB-traceable calibraion data. The sensors can be controlled using the PM400 power meter console or PM102 series power meter interfaces. The system can be configured to display a visual trace of the position over time, a graph of the X and Y positions over time, a table of measurement statistics, or a simple numerical readout of the incident power. See the full web presentation and the PM400 manual for details.
These Pyroelectric Sensors are designed to measure pulsed coherent and incoherent sources. Pyroelectric sensors are not suited for CW measurements, as they convert energy from light pulses into voltage pulses. A black broadband or ceramic coating is used for low or high power measurements, respectively. Large sensor areas from
Ø11 mm - Ø45 mm allow easy alignment. The energy sensors features BNC connectors for use with an oscilloscope, as well as standard power meter connectors which contain NIST and PTB-traceable calibration data.
These sensors are not compatible with the PM100A Analog Power Meter Console or the PM101 Series Power Meter Interfaces.
Thorlabs offers a recalibration service for these energy sensors, which can be ordered below (see Item # CAL-S200).
Item #a | ES111C | ES120C | ES145C | ES220C | ES245C |
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Sensor Image (Click the Image to Enlarge) |
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Aperture Size | Ø11 mm | Ø20 mm | Ø45 mm | Ø20 mm | Ø45 mm |
Wavelength Range | 0.185 - 25 µm | ||||
Energy Range | 10 µJ - 150 mJ | 100 µJ - 500 mJ | 500 µJ - 2 J | 500 µJ - 3 J | 1 mJ - 15 J |
Detector Type | Pyroelectric Energy Sensor with Black Broadband Coating | Pyroelectric Energy Sensor with Ceramic Coating | |||
Resolution | 100 nJ | 1 µJ | 1 µJ | 25 µJ | 50 µJ |
Linearity | ±1% | ||||
Measurement Uncertainty | ±5% @ 0.185 - 25 µm | ||||
Housing Dimensions | Ø36 mm x 16 mm | Ø50 mm x 18 mm | Ø75 mm x 21 mm | Ø50 mm x 18 mm | Ø75 mm x 21 mm |
Cable Length | 1.5 m | ||||
Post Mounting | 8-32 Mounting Thread, 8-32 and M4 Insulating Adapters Included | ||||
Cage Mounting | N/A | Four 4-40 Taps for 30 mm Cage Systems |
N/A | Four 4-40 Taps for 30 mm Cage Systems |
N/A |
Compatible Consoles | PM400, PM100D, and PM320E | ||||
Compatible Interfaces | PM100USB |
Calibration Service Item # | Compatible Sensors |
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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.
Sensor Type | Sensor Item #s |
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Thermal Power | S175C, S302Ca, S305Ca, S310Ca, S314Ca, S322C, S350C, S370C, S401C, S405C, S415C, S425C, S425C-L, S470C |
Pyroelectric Energy | ES111C, ES120C, ES145C, ES220C, ES245C |
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.
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