Optical waveguides – Integrated optical circuit
Reexamination Certificate
2009-09-25
2011-11-01
Healy, Brian (Department: 2883)
Optical waveguides
Integrated optical circuit
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.
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Takashi Shiraishi, et al., “Suppression of thermal drift in an ultra-high-speed LiNbO3 optical modulator” 2007, pp. 169-170.
Fujitsu Limited
Healy Brian
Staas & Halsey , LLP
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