Patent ID: 8633440
Filing Date: 2014-01-21
Classification: G01J,G02B,H04J,H04Q

Abstract:
1. An optical demultiplexing device, comprising: at least one array of photo detector elements; and a demultiplexing assembly which is optically coupled to the array, the demultiplexing assembly comprising multiple optical channels, each optical channel formed from at least one bandpass reflector and at least one optical filter, each bandpass reflector being disposed substantially along an input signal axis of the demultiplexing assembly and each channel configured to transmit an optical signal within a selected wavelength range to an active portion of the array of photo detector elements which is isolated from active portions of photo detector elements of adjacent channels and wherein the bandpass reflector of each successive channel is offset laterally relative to an input axis of the device in order to accommodate a lateral shift of an input signal as it passes through each successive bandpass reflector.