Optical modulator

Details Optical modulator Optical modulator

2007-12-18

2007-12-18

Healy, Brian (Department: 2883)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S002000, C385S003000, C385S014000, C385S015000, C385S045000

Reexamination Certificate

active

10525903

ABSTRACT:
An optical modulator restricted in a photorefractive phenomenon caused by a stray light in an optical modulator, and improved in the quenching ratio characteristics of a signal light. The optical modulator comprises a substrate consisting of a material having an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode for allowing an electric field to work on the optical waveguide and changing the phase of light passing through the optical waveguide, characterized in that stray light removing means are provided on the surface of the substrate.

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Japan Patent Office, Notification of Reason for Refusal in JP 2002-254938, Apr. 18, 2006, Japan Patent Office, Japan.

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