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Optical Spectrum Analyzers

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About Optical Spectrum Analyzers

Optical spectrum analyzers (OSA) can divide a lightwave signal into its constituent wavelengths. This means that it is possible to see the spectral profile of the signal over a certain wavelength range. The profile is graphically displayed, with wavelength on the horizontal axis and power on the vertical axis. In this way, the many signals combined on a single fiber in a dense wavelength division multiplexing (DWDM) system can be taken apart to perform per-channel analysis of the optical signal and its spectral interaction with the other wavelengths. 

Applications for optical spectrum analyzers include testing devices lasers and LED light sources for spectral purity and power distribution, and testing other optical devices for transmission quality. Optical spectrum analyzers are ideal instruments for laser modes analysis, very high-resolution spectroscopic measurements, telecommunication device and system tests and other applications.

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