Patent ID: 6266460
Filing Date: 2001-07-24
Classification: G02B,G02F,H04J

Abstract:
An apparatus for removing and/or adding wavelength channels comprising:a planar lightwave circuit integrated in a single chip, the planar lightwave circuit including:an input,a demultiplexer, the demultiplexer being coupled to the input and demultiplexing a plurality of wavelength channels at the input into a plurality of demultiplexer outputs, each demultiplexer output corresponding to one of the plurality of wavelength channels,a plurality of waveguides, each of the plurality of waveguides being coupled to a demultiplexer output,a plurality of optical switches having an input and first and second outputs, each input of the plurality of optical switches being coupled to a corresponding one of the plurality of waveguides, anda plurality of fixed mirrors with each mirror being coupled to the first output of a corresponding optical switch and being positioned to reflect a light beam therefrom,wherein each of the plurality of optical switches selectively directs a corresponding wavelength channel to the first output towards the corresponding mirror or to the second output.