Multiple-wavelength optical transceiver

摘要: An optical demultiplexing apparatus is capable of spatially separating a multiplexed signal into two or more wavelength signals thereof. input present on first plane imaged through color-selective grating to second plane. The has nonlinear change diffraction characteristics as function incident provide substantial spatial separation in the between bands wavelengths proximate signals. In another embodiment, uses polarization-selective separate polarization-multiplexed separated polarization other embodiments, may be used an multiplexer, splitter, combiner.