Optical device and method related thereto

Optical waveguides – Integrated optical circuit

Reexamination Certificate

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Details

C385S001000, C385S011000, C385S123000, C385S130000, C385S131000, C385S040000, C264S001240, C438S031000

Reexamination Certificate

active

08050524

ABSTRACT:
An optical device includes an electrooptic crystal substrate, a polarization-inverted region formed in a part of the electrooptic crystal substrate, an optical waveguide formed in the electrooptic crystal substrate, and a groove for relaxing stress disposed between a domain wall of the polarization-inverted region and the optical waveguide.

REFERENCES:
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patent: 5790719 (1998-08-01), Mitomi et al.
patent: 6631231 (2003-10-01), Mizuuchi et al.
patent: 2006/0029319 (2006-02-01), Sugiyama
patent: 2006/0079006 (2006-04-01), Yamamoto et al.
patent: 2010/0027935 (2010-02-01), Shiraishi
patent: 2010/0080507 (2010-04-01), Shiraishi
patent: 05-210132 (1993-08-01), None
patent: 08-166566 (1996-06-01), None
patent: 10-039266 (1998-02-01), None
patent: 2005-274793 (2005-10-01), None
patent: 2005-275121 (2005-10-01), None
patent: 2005-284129 (2005-10-01), None
Takashi Shiraishi, et al., “Suppression of thermal drift in an ultra-high-speed LiNbO3 optical modulator” 2007, pp. 169-170.

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