Optical waveguides – Integrated optical circuit
Reexamination Certificate
2011-05-31
2011-05-31
Doan, Jennifer (Department: 2874)
Optical waveguides
Integrated optical circuit
C385S001000, C385S002000, C385S003000, C385S008000, C385S129000
Reexamination Certificate
active
07953305
ABSTRACT:
An optical waveguide device includes; a substrate having an electro-optic effect, and a first optical waveguide and a second optical waveguide formed substantially in parallel on a top face of the substrate. A groove is formed for cutting only the first optical waveguide, of the first optical waveguide and the second optical waveguide. The groove penetrates from the top face to a bottom face of the substrate. Such a groove can be formed for example by fixing a side face of the substrate on the second optical waveguide side to a supporting base of a dicing machine so that the first optical waveguide is positioned on an upper side and the second optical waveguide is positioned on a lower side, and advancing the dicing saw from the bottom face side to the top face side of the substrate.
REFERENCES:
patent: 6033126 (2000-03-01), Omori et al.
patent: 7224869 (2007-05-01), Cole et al.
patent: 07-056199 (1995-03-01), None
patent: 8-278422 (1996-10-01), None
patent: 2000-121850 (2000-04-01), None
patent: 2008-46573 (2008-02-01), None
Patent Abstracts of Japan, Publication No. 07-056199, published Mar. 3, 1995.
Patent Abstracts of Japan, Publication No. 2000-121850, published Apr. 28, 2000.
Doan Jennifer
Fujitsu Limited
Staas & Halsey , LLP
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