TH-OSA305 - Redstone Fourier Transform Optical Spectrum Analyzer, 1.9 GHz Resolution, 1.0 - 5.6 µm
TH-OSA305 - Redstone Fourier Transform Optical Spectrum Analyzer, 1.9 GHz Resolution, 1.0 - 5.6 µm
- Multi-Detector Configuration for Broad Operation Range: 1.0 - 5.6 µm (10 000 - 1786 cm-1)
- Four Resolution Settings and Three Sensitivity Levels
- Front Panel Access to Frequency-Locked Laser for Wavelength Calibration
- Two Optical Input Ports
- FC/PC Fiber-Coupled Input
- Free-Space Input with Four 4-40 Taps for 60 mm Cage System Compatibility
- Trigger Input for External Synchronization
- Built-In Hose Connections for Optional Purging
- Includes Windows® Laptop and Items Shown in Shipping List Tab
Resolution and Sensitivity
This high-performance OSA offers four resolution settings that can resolve spectral features 4.0, 1.0, 0.25, or 0.0625 cm-1 apart. Three sensitivity levels are also available, which control the acquisition speed and available gain levels. For detailed specifications on the acquisition update frequency for each sensitivity and resolution setting, please see the Specs tab.
Calibration Laser
For the Redstone OSA, the internal frequency-locked calibration laser is accessible through the FC/APC fiber output located above the power switch on the front panel. This can be used for wavelength calibration by connecting the front-panel output to the FC/PC fiber input using the included single mode patch cable. During calibration, the software compares the measured wavelength to the reference and performs a calibration if necessary.
Interferogram Averaging
An integrated internal broadband reference source allows the Redstone OSA to accurately determine the location of zero path difference (ZPD) between the two optical branches. The ZPD can be used to average interferograms, which reduces the signal-to-noise ratio. The beam profile overlap between the two branches is optimized using piezoelectric actuators.
Software
The Redstone OSA includes a Windows® laptop with our OSA software suite version 3.20 pre-installed and a high-speed USB 3.0 cable. This software has a graphical user interface (GUI) that includes a variety of measurement and analysis tools; please see the Software tab for a detailed overview of the software capabilities. To easily interface with the OSAs, an extensive set of drivers are also available for LabVIEW®, C, C++, and C#.