Patent ID: 7050719
Filing Date: 2006-05-23
Classification: H04J

Abstract:
1. A wavelength division multiplexing (WDM) receiver for an n-channel optical input signal, the channels having a channel spacing of Δλ, the WDM receiver comprising: a wavelength demultiplexer receiving said n-channel optical input signal and transmitting said n-channel optical input signal to m optical outputs, each of said optical outputs receiving a wavelength band centered at a different wavelength, said wavelength bands having a center-to-center wavelength spacing of Δλ′; a detector array of m detector elements coupled to said wavelength demultiplexer, each of said detector elements generating a detection signal in response to light received from one of said optical outputs of said wavelength demultiplexer; and signal extractor means for receiving said detection signals from said detector array and for converting said detection signals to an n-channel receiver output signal, each of the n channels of said receiver output signal corresponding to a different one of the n channels of said optical input signal.