Patent ID: 9490895
Filing Date: 2016-11-08
CPC Classification: H04B

Claim Text:
1. An optical channel monitor including: a protective housing; an input port disposed in the housing and configured for receiving at least one input optical signal including one or more optical channels separated by wavelength; a wavelength configurable laser located within the housing and configured to provide an optical reference signal at a plurality of wavelengths, the laser being adapted to scan across the plurality of wavelengths covering the one or more optical channels; an optical mixing module located within the housing and coupled to the input port and the laser for mixing the at least one input optical signal with the optical reference signal to produce a mixed output signal; and a receiver module located within the housing and configured to receive the mixed output signal and extract signal information indicative of at least the optical power of the at least one input optical signal at each of the plurality of wavelengths.