Bidirectional optical modulator having lightwave signal...

Details Bidirectional optical modulator having lightwave signal... Bidirectional optical modulator having lightwave signal...

H - Electricity

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H04B 10/12 (2006.01) G02B 6/12 (2006.01) G02B 6/42 (2006.01) G02F 1/01 (2006.01) G02F 1/025 (2006.01) G02F 1/03 (2006.01) H04B 10/24 (2006.01)

Patent

CA 2200215

A modulating optical element (10) having ports (1, 2) wherein either port can output or receive light signals. An electrooptic effect is applied to the optical element to allow the light signals to pass or not pass through the optical element. Due to the electrooptic effect in preventing signals from passing through the optic element ("off" state), light signals radiate out (50) of the optical element and are absorbed by the substrate (6) of the optical element assembly. Rather than being lost, the energy from the light signal is converted, via photodetector electrodes (7, 17), to current which may be used for other purposes in the modulator system, such as bias stabilization.

Elément (10) optique modulateur doté de points d'accès (1, 2), lesdits points d'accès pouvant indifféremment envoyer ou recevoir des signaux lumineux. Un effet électro-optique est appliqué à l'élément optique pour permettre aux signaux lumineux de passer ou de ne pas passer à travers ledit élément optique. Lorsque l'effet électro-optique empêche les signaux de passer à travers l'élément optique (état d'"arrêt"), des signaux lumineux rayonnent (50) à partir de l'élément optique et sont absorbés par le substrat (6) de l'ensemble élément optique. Plutôt que d'être perdue, l'énergie provenant du signal lumineux est convertie, à l'aide d'électrodes (7 et 17) de photodétecteur, en courant qui peut être utilisé à d'autres fins dans le système modulateur, telles que la stabilisation de la polarisation.

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