Features
Michelson Interferometer-Based OSA
Models Available for 350 - 1100 nm, 600 - 1700, or 1100 - 2500 nm
Spectral Resolution: 7.5 GHz (0.25 cm-1)
Includes Laptop with Pre-Installed Software
Standalone "Virtual Device" Software Demo Available (See the Software Tab)
Thorlabs' Optical Spectrum Analyzers (OSAs) are general-purpose instruments that measure optical power of the light source as a function of wavelength. This instrument is versatile enough to analyze the spectra of broadband optical signals, the Fabry-Perot modes of a gain chip, or a long-coherence-length single mode external cavity laser.
Commonly available OSAs are typically grating-based monochromators. The Thorlabs OSA is a Fourier Transform Optical Spectrum Analyzer (FT-OSA), which utilizes a scanning Michelson Interferometer in a push/pull configuration as shown in the figure to the right. This approach allows for the design of a full-featured OSA with the additional benefit of a high precision Wavelength Meter.