Multiplexing/demultiplexing optical circuit

Details Multiplexing/demultiplexing optical circuit Multiplexing/demultiplexing optical circuit

H - Electricity

04

J

H04J 14/02 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2326990

A circuit for de-interleaving or interleaving multi-channel optical signals having a predetermined inter-channel frequency spacing, uses a plurality of sequentially coupled periodic filters of a similar free spectral range, for example Fabry-Perot etalon-based interleavers/de-interleavers. The spectral response of the consecutive filters is shifted to accommodate different channel groupings. The free-spectral range of each of the interleavers is similar and the channel period is larger than two adjacent inter-channel frequency spacings of an input optical signal.

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