Optical Spectrum AnalyzersThe software package for Thorlabs' Optical Spectrum Analyzers (OSA) includes a GUI and instrument drivers. Support for Compact CCD Spectrometers is available via the CCS installer. The following downloads are available: - Software: Software, Drivers, and Utility files for the OSA20xC and Redstone OSA30x instruments. Choose this tab if you are installing new software or upgrading from earlier versions of Thorlabs' OSA software.
- Libraries: A package that installs the necessary drivers for controlling the OSA20xC and Redstone OSA30x instruments through LabVIEW®. Please unzip and read the ReadMe.pdf file first.
- GitHub Resources: Link to Thorlabs' OSA content on GitHub®.
- Archive: Previous versions of the OSA software and LabVIEW® drivers, including versions compatible with Windows® XP, Windows® Vista, and Windows® 7.
| OSA LabVIEW Drivers | | |
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| Description | The installer below contains the necessary drivers for controlling the OSA20xC and Redstone OSA30x instruments through LabVIEW®. | | | Version | 1.0.1.16 | | Filesize | 9.43 MB | | Download | 
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | System Requirements | LabVIEW 2010 or Higher |
| GitHub® Resources | | |
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| Description | Thorlabs has been expanding our offering of example code for OSA instruments on our GitHub account. This includes examples for the Python programming language, which is a useful starting point for implementing Thorlabs' OSAs in common applications. | | | Additional | Please click the icon below to visit our GitHub page. |
| Version 3.35 | | |
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| Description | This will install control software for our OSA20xC and Redstone OSA30x instruments. It includes a "virtual device" mode for evaluating the software and drivers for C, C++, and C#. To include support for CCD spectrometers, please download the CCS installer. | | | Version | 3.35 | | Filesize | 221 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Change Log |  | | Additional | Please note: The 'Minimum System Requirements' listed below are sufficient for operating the software with a virtual device for evaluation purposes. The 'Recommended System Requirements' are strongly suggested for actual measurements. | | System Requirements | Minimum:
Windows® 7 SP1, 8, 10, or 11 (64 Bit)
USB 3.0 Port
Monitor Resolution: 800 x 600
Intel Core i5 or AMD Athlon II
8 GB RAM
Recommended:
Windows 11 (64 Bit)
Intel Core i9 or AMD Ryzen
16 GB RAM | | Additional Software | .NET framework 4.7.2 or higher is required. An installer for .NET framework 4.7.2 is included in the full installer. |
| Redstone Version 3.10 | | |
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| Description | This is a full installer for our control software for our Redstone OSA. It includes a "virtual device" mode ideal for evaluating the software. | | | Version | 3.10 | | Filesize | 310 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Additional | Please note: The 'Minimum System Requirements' listed below are sufficient for operating the software with a virtual device for evaluation purposes. The 'Recommended System Requirements' are strongly suggested for actual measurements. | | System Requirements | Minimum:
Windows® Vista, 7, 8, or 10 (64 Bit)
USB 3.0 Port
Monitor Resolution: 800 x 600
Intel Core i5 or AMD Athlon II
8 GB RAM
Recommended:
Windows 10 (64 Bit)
Intel Core i9 or AMD Athlon Ryzen
16 GB RAM | | Additional Software | .NET framework 4.7.2 or higher is required. An installer for .NET framework 4.7.2 is included. |
| Redstone Version 3.05 | | |
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| Description | This is a full installer for our control software for our Redstone OSA. It includes a "virtual device" mode ideal for evaluating the software. | | | Version | 3.05 | | Filesize | 312 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Additional | Please note: The 'Minimum System Requirements' listed below are sufficient for operating the software with a virtual device for evaluation purposes. The 'Recommended System Requirements' are strongly suggested for actual measurements. | | System Requirements | Minimum:
Windows® Vista, 7, 8, or 10 (64 Bit)
USB 3.0 Port
Monitor Resolution: 800 x 600
Intel Core i5 or AMD Athlon II
8 GB RAM
Recommended:
Windows 10 (64 Bit)
Intel Core i9 or AMD Athlon Ryzen
16 GB RAM | | Additional Software | .NET framework 4.7.2 or higher is required. An installer for .NET framework 4.7.2 is included. |
| OSA Version 2.90 | | |
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| Description | This is a full installer for our control software for our OSA and CCD spectrometers. It includes a "virtual device" mode ideal for evaluating the software. | | | Version | 2.90 | | Filesize | 438 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Contents |  | | Additional | Please note: The 'Minimum System Requirements' listed below are sufficient for operating the software with a virtual device for evaluation purposes. The 'Recommended System Requirements' are strongly suggested for actual measurements. | | System Requirements | Minimum:
Windows® Vista, 7, 8, or 10 (32 or 64 Bit)
USB 2.0 Port
Monitor Resolution: 800 x 600
Intel Pentium 4 or AMD 64 3000+
2.0 GB RAM
Recommended:
Windows 7, 8, or 10 (64 Bit)
Intel Core i5 or AMD Athlon II
6.0 GB RAM | | Additional Software | .NET framework 4.5 or higher and Java Runtime 1.6 or higher are both required. An installer for .NET framework 4.5 is included in the full installer. |
| Version 2.85 LabVIEW Drivers | | |
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| Description | OSA20xC (Only) LabVIEW Drivers for use with OSA software v2.90 or earlier.
The installer below contains the necessary drivers for controlling the OSA20xC instruments through LabVIEW™ when the version of the installed software is v2.90 or earlier. | | | Version | 2.85.6780.4971 | | Filesize | 12.2 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | System Requirements | LabVIEW 2010 or Higher |
| OSA Version 1.8 - for Windows® XP | | |
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| Description | This software includes a GUI for control of the OSA, as well as a "virtual device" mode for evaluating the software prior to purchase. This software package is not compatible with our CCD spectrometers; contact techsupport@thorlabs.com for XP-compatible software. |  | | Version | 1.8 | | Filesize | 320 MB | | Download |
Only download from trusted sources, like Thorlabs, and always scan files before executing. | | Additional | Please note: The 'Minimum System Requirements' listed below are sufficient for operating the software with a virtual device for evaluation purposes. The 'Recommended System Requirements' are strongly suggested for actual measurements. | | System Requirements | Minimum:
Windows® XP or Newer (32 or 64 Bit)
USB 2.0 Port
Monitor Resolution: 800 x 600
Intel Pentium 4 or AMD 64 3000+
2.0 GB RAM
Recommended:
Windows 7 (64 Bit)
Intel Core i5 or AMD Athlon II
6.0 GB RAM
| | Additional Software | .NET framework 3.5 or higher and Java Runtime 1.6 or higher are both required. | |
