Optical Power MonitorThe Optical Power Monitor (OPM) software provides remote control and monitoring of up to eight power and energy meters. This software is compatible with our Power Meter Consoles and Interfaces (PM100A and PM101 Series), Power and Energy Meter Consoles and Interfaces (PM100D, PM400, PM5020, PM100USB, PM103 Series, and legacy PM200), Position & Power Meter Interfaces (PM102 Series), Wireless Power Meters (PM160, PM160T, and PM160T-HP), USB-Interface Power Meters (PM16 Series) and Photon Counter (SPCNT), and Fiber Optic Power Meters (PM60 and PM61 Series). This software is not compatible with the previous-generation PM320E Benchtop Power and Energy Meter, which uses a separate software package available here.
Key features include:- Control and Monitor up to Eight Power and Energy Meters Simultaneously via USB, RS232, or Bluetooth® Connections
- Adjustable Digital Measurement Display
- Analog Needle Display with Delta Mode
- Acquire Measurement Statistics Over a Set Duration or Data Sample Size
- Display and Log Sequential Measurements Over Time
- Export Data Logs in .csv Format
- Set Display Language to English, German, or Chinese
- Manual Download Available Here
For users with custom software based on the PM100D.dll driver or who prefer the legacy Power Meter Software; it is also available by clicking here.
This page contains a download for the following package: - Software: Software with graphical user interfaces for operating Thorlabs' power and energy meters (except PM320E), device drivers, and run-time engines.
- Firmware: Internal programs that control these instruments.
- GitHub Resources: Link to Thorlabs' optical power monitor content on GitHub®.
- Archive: Previous software versions.
| Firmware for the PM100USB | | |
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| Description | The latest firmware version for PM100USB optical power meters. For installation instructions, consult the users manual. | | | Version | 1.7.0 | | Filesize | 120 KB | | Download | 
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log |  | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM100A | | |
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| Description | The latest firmware version for PM100A optical power meters. For installation instructions, consult the users manual. | | | Version | 2.5.0 | | Filesize | 178 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM100D | | |
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| Description | The latest firmware version for PM100D optical power meters. For installation instructions, consult the users manual. | | | Version | 2.8.1 | | Filesize | 294 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM101x | | |
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| Description | The latest firmware version for PM101, PM101U, PM101A, and PM101R optical power meters. For installation instructions, consult the users manual. | | | Version | 1.4.0 | | Filesize | 608 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM102x | | |
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| Description | The latest firmware version for PM102, PM102A, and PM102U optical power meters. For installation instructions, consult the users manual. | | | Version | 1.1.0 | | Filesize | 702 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM103x | | |
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| Description | The latest firmware version for PM103, PM103U, and PM103A optical power meters. For installation instructions, consult the users manual. | | | Version | 1.3.0 | | Filesize | 1.32 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM400 | | |
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| Description | The latest firmware version for PM400 optical power meter. | | | Version | 1.5.1 | | Filesize | 614 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for the PM5020 | | |
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| Description | The latest firmware version for the PM5020 optical power meter. For installation instructions, consult the Change Log. | | | Version | 1.4.0 / 1.1.3 | | Filesize | 8.35 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional | This firmware updates the Powermeter and Backpanel device internal programs to versions 1.4.0 and 1.1.3, respectively, for the PM5020 optical power meter. For more information, please consult the Change Log. Please update the firmware whenever a new version for either firmware is available. | | Additional Software | Thorlabs' Optical Power Monitor is needed to update the firmware. The software is available for download on the Software tab. |
| Firmware for PM160 Power Meters | | |
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| Description | The latest firmware version for the PM160 optical power meters. For installation instructions, consult the Change Log. | | | Version | 1.3 | | Filesize | 96 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for PM16-1xx Power Meters | | |
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| Description | The latest firmware version for the PM16-1xx (photodiode) optical power meters. For installation instructions, consult the Change Log. | | | Version | 1.6.0 | | Filesize | 89 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| Firmware for PM160T(-HP) and PM16-401 Power Meters | | |
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| Description | The latest firmware version for PM160T, PM160T-HP and PM16-401 (thermal) optical power meters. For installation instructions, consult the Change Log. | | | Version | 1.6.1 | | Filesize | 94.9 KB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log | | | Additional Software | Thorlabs' Device Firmware Upgrade Wizard is needed to update the firmware and included in the download on the Software tab. |
| GitHub® Resources | | |
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| Description | Thorlabs has been expanding our offering of example code for the Optical Power Monitor products on our GitHub account. These include examples for the C++, C#, MATLAB, and Python programming languages, and are a useful starting point for implementing Thorlabs' devices in common applications. | | | Additional | Please click the icon below to visit our GitHub page. | |
