Optical waveguides – Optical waveguide sensor – Including physical deformation or movement of waveguide
Reexamination Certificate
2008-08-07
2010-06-01
Font, Frank G (Department: 2883)
Optical waveguides
Optical waveguide sensor
Including physical deformation or movement of waveguide
C385S129000, C385S130000, C385S131000, C385S132000
Reexamination Certificate
active
07729568
ABSTRACT:
The application relates to an optical device for enhancing the stress to be generated in a substrate in comparison with a conventional technique. To this end, the optical device includes a substrate having a photoelastic effect, a first stress layer formed on a first face of the substrate and having a pattern for generating stress which induces refraction index variation by the photoelastic effect in a partial region in the substrate, and a second stress layer formed on a second face which is a reverse face to the first face of the substrate and configured to generate stress for restoring the shape from the deformation caused by the stress generated in the substrate by the first stress layer in the substrate.
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International Search Report mailed May 16, 2006 for International Application No. PCT/JP2006/302651.
Miyatake Tetsuya
Shiraishi Takashi
Tanaka Kazuhiro
Chiem Erin D
Font Frank G
Fujitsu Limited
Staas & Halsey , LLP
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