Wavelength-selective optical switching apparatus, optical...

H - Electricity – 04 – Q

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H04Q 11/00 (2006.01) G02B 6/34 (2006.01) H04B 10/213 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2300886

An optical switching apparatus is designed to implement a serial switching architecture for wavelength division multiplexed (WDM) optical communication systems. The design allows for add/drop switching of a selected wavelength channel without switching a non-selected wavelength channel, thereby avoiding potential data loss on the non-selected channel during the add/drop switching interval. Exemplary implementations utilize fiber-optics and free-optics based approaches. The serial architecture readily accommodates new wavelength plans and/or the addition of new wavelength channels.

Dispositif de commutation optique conçu pour mettre en application une architecture de commutation sérielle pour des systèmes de communication optique multiplexés par répartition en longueur d'onde (WDM). Cette conception permet la commutation par insertion/extraction d'un canal de longueur d'onde sélectionné sans commutation d'un canal de longueur d'onde non sélectionné, ce qui évite une perte potentielle de données sur le canal non sélectionné pendant l'intervalle de commutation par insertion/extraction. Ce dispositif peut incorporer des composants à base de fibres optiques et sans fibres optiques. Cette architecture sérielle permet d'intégrer sans difficultés de nouvelles modalités de longueur d'onde et d'ajouter de nouveaux canaux de longueur d'onde.

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