Switchable optical components

G - Physics – 02 – F

Patent

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Details

G02F 1/313 (2006.01) G02B 6/12 (2006.01) G02B 6/136 (2006.01) G02B 6/34 (2006.01) G02F 1/01 (2006.01) H04B 10/12 (2006.01) H04J 14/02 (2006.01) G02B 6/28 (2006.01) G02F 1/1334 (2006.01)

Patent

CA 2300170

This invention relates to a number of components, devices and networks involving integrated optics and/or half coupler technology, all of which involve the use of electronically switchable Bragg grating devices and device geometries realized using holographic polymer/dispersed liquid crystal materials. Most of the components and devices are particularly adapted for use in wavelength division multiplexing (WDM) systems and in particular for use in switchable add/drop filtering (SADF) and wavelength selective crossconnect. Attenuators, outcouplers and a variety of other devices are also provided.

L'invention concerne plusieurs composants, dispositifs et réseaux mettant en application une technique d'optique intégrée et/ou de demi-coupleur et dont la totalité utilise des dispositifs à réseau de Bragg commutables électroniquement, ainsi que des géométries de composants obtenues au moyen de matériaux de cristaux liquides dispersés ou de polymère holographique. Ces composants et ces dispositifs sont, pour la plupart, particulièrement conçus pour des systèmes de multiplexage en longueur d'ondes (WDM) et, plus particulièrement, pour des filtres commutables d'addition et de perte (SADF) et pour des connexions croisées sélectionnant les longueurs d'ondes. Elle concerne également des atténuateurs, des coupleurs vers l'extérieur et une variété d'autres dispositifs.

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