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The Thorlabs OSA201 Optical Spectrum Analyzer is a general-purpose instrument that measures optical power as a function of wavelength. It is a Fourier Transform Optical Spectrum Analyzer (FT-OSA), which utilizes a scanning Michelson Interferometer in a push/pull configuration. This approach allows for the design of a full-featured OSA with the additional benefit of a high precision Wavelength Meter. Specifications.
Wavelength Range: 350 - 1100 nm. Spectral Resolution: 10 pm (0.25 cm, 7.5 GHz), Broadband FT-OSA Mode. Wavelength Meter Resolution: 0.1pm, Wavelength Meter Mode Linewidth < 4 GHz. Display Resolution: System Controlled with User Override, max 0.01 ppm. Spectral Accuracy: ±2 pm, Broadband FT-OSA Mode. Wavelength Meter Accuracy: ±1 pm, Wavelength Meter Mode. Spectral Precision: ±1 pm, Broadband FT-OSA Mode. Wavelength Meter Precision: 0.1 pm, Wavelength Meter Mode. Measurement Rate: 2 Hz. Signal-to-Noise Ratio: >40 dB. Level Sensitivity: -70 dB. Input Power (Max): 10 dBm.
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