Device for tailoring the chromatic dispersion of a light signal

Details Device for tailoring the chromatic dispersion of a light signal Device for tailoring the chromatic dispersion of a light signal

H - Electricity

04

B

H04B 10/18 (2006.01) G02B 5/26 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2509551

A device for tailoring the chromatic dispersion of a multi-channel light signal is proposed. The device includes at least two waveguides coupled in a cascade, each provided with a spatially distributed optical filter. The group delay response of the filters is designed so that the group delay of each channel of the light signal can be tuned independently of the others, and an appropriate tuning mechanism is provided for this purpose. The device may advantageously be used as a flexible dispersion compensator.

La présente invention propose un dispositif qui permet d'adapter la dispersion chromatique d'un signal lumineux multivoie. Ce dispositif comprend au moins deux guides d'ondes couplés en cascade, chacun étant muni d'un filtre optique à distribution spatiale. La réponse du temps de propagation de groupe des filtres est pensée de sorte que le temps de propagation de groupe de chaque voie du signal lumineux peut être accordé indépendamment des autres voies; un mécanisme d'accord approprié est fourni à cette fin. Ledit dispositif peut servir de manière profitable comme compensateur de dispersion souple.

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