Optical space switch

Optical waveguides – Directional optical modulation within an optical waveguide – Electro-optic

Reexamination Certificate

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C385S129000

Reexamination Certificate

active

06879740

ABSTRACT:
A device for optical space switching in optical networks. The optical device comprises a broad area optical waveguide section having a number of electrodes extending over at least a portion of the length of the broad area optical waveguide section. The application of an electrical signal to an electrode causes a local change in effective refractive index of the broad area optical waveguide section, thereby causing light preferentially to propagate along a predetermined path in dependence on the configuration of the electrode. In particular the broad area waveguide device is implemented in indium phosphide (InP).Also described is a method for waveguiding in the optical device.

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