Wavelength division multiplexed multi-frequency optical...

Details Wavelength division multiplexed multi-frequency optical... Wavelength division multiplexed multi-frequency optical...

H - Electricity

04

J

H04J 14/02 (2006.01) H04B 10/20 (2006.01) H04B 10/207 (2006.01)

Patent

CA 2148630

A wavelength division multiplexing multi-frequency optical source is used to provide downstream transmission of information signals at discrete optical wavelengths from a central office to a plurality of optical network units. A passive optical demultiplexer in a remote node routes the downstream information signals to the optical networks according to optical wavelength. Broadband incoherent sources are used to provide upstream information signals at discrete optical wavelengths which are multiplexed and then routed to the central office for demultiplexing by the passive optical demultiplexer. A wavelength selective coupler in the central office and in each optical network unit combines and segregates downstream and upstream signals of different optical wavelengths for routing to a desired destination.

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