Patent ID: 6344910
Filing Date: 2002-02-05
Classification: H04B

Abstract:
An optical performance monitor (OPM), comprising:a plurality of separator modules for separating a composite optical signal into a plurality of subsets, each of the plurality of subsets comprising a plurality of data points; a detector optically coupled to the plurality of separator modules for detecting the plurality of data points; a coarse wavelength division multiplexer (CWDM) optically coupled between the plurality of separator modules and the detector for dividing each of the plurality of subsets into a plurality of coarse bands; a first switch coupled between the plurality of separator modules and the CWDM for directing each of the plurality of subsets from the plurality of separator modules to the CWDM; and a second switch coupled between the CWDM and the detector for directing each of the plurality of coarse bands from the CWDM to the detector.