What is Span of an Optical Spectrum Analyzer (OSA)?

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- GoPhotonics

Aug 21, 2023

The Span of an Optical Spectrum Analyzer (OSA) refers to the range of wavelengths or frequencies over which the instrument can analyze the optical spectrum of a signal. It determines the width of the spectrum that the OSA can display and measure.

Span is measured in the units of frequency or wavelength and is commonly measured in nm.