Optical modulator

Details Optical modulator Optical modulator

2007-11-06

2007-11-06

Song, Sarah (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S040000

Reexamination Certificate

active

10527214

ABSTRACT:
An optical modulator in which stabilized driving is realized over a long time by relaxing stress generated in a recess formed in the surface of a substrate in the optical modulator and controlling deterioration of optical modulation control caused by stress-strain in the substrate including an optical waveguide. The optical modulator comprises a substrate of a material exhibiting electrooptic effect, an optical waveguide (4) provided on the substrate, and control electrodes (20-25) for controlling the phase of light being guided through the optical waveguide characterized in that a recess (12) is provided in the surface of the substrate for forming the control electrodes, and the control electrode (24) being formed on the recess is provided with a stress relaxing means.

REFERENCES:
patent: 6801675 (2004-10-01), Doi et al.
patent: 2002/0146190 (2002-10-01), Doi et al.
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patent: 06-067130 (1994-03-01), None
patent: 07-234391 (1995-09-01), None
patent: 09-297289 (1997-11-01), None
patent: 10-090638 (1998-04-01), None

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