Arrangement for the physical separation and reception of a plurality of optical wavelengths

摘要

DWDM receivers of hybrid design require expensive adjustments of a DWDM filter. An arrangement is indicated in which expensive optical adjustments of an optical filter are avoided. For this purpose, the arrangement has a planar integrated optical grating spectrograph (1) disposed in a first plane (8), a detector array disposed in a second plane (9) parallel with and at a distance from the first plane (8) and a deflecting reflector device (3) with a reflector surface (31) disposed obliquely in relation to the first plane (8) in such a way that it deflects the wavelengths up in the direction of the detector array (2). For use as a demultiplexer in optical communications systems.