Wdm systems and methods

H - Electricity – 04 – J

Patent

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H04J 14/02 (2006.01)

Patent

CA 2558228

A WDM optical System includes first and second WDM's including an optical link therebetween. Each WDM includes circuitry for linking multiplexer and demultiplexer circuitry to a plurality of modular elements. The modular elements include a first set of modules for converting between native protocol media signals and common format signals. A second set of modules converts between the common format signals and optical signals at separate wavelengths for communication with the multiplexers and demultiplexers. A dual path transmit and receive optical link is provided between near and far end WDM's.

L'invention concerne un système optique de multiplexage par répartition en longueur d'onde (MRL) comprenant un premier et un second système MRL reliés par une liaison optique. Chaque système MRL comprend un ensemble de circuits reliant les circuits de multiplexage et de démultiplexage à une pluralité d'éléments modulaires. Ces éléments modulaires comprennent un premier ensemble de modules assurant la conversion entre des signaux multimédia du protocole d'origine et des signaux en format usuel. Un second ensemble de modules assure la conversion entre les signaux en format usuel et les signaux optiques à des longueurs d'ondes distinctes, afin de permettre la communication avec les multiplexeurs et les démultiplexeurs. Une liaison optique à double trajectoire d'émission et de réception est installée entre les systèmes MRL locaux et les systèmes MRL distants.

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