Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2007-03-20
2007-03-20
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C438S031000, C385S037000, C385S039000
Reexamination Certificate
active
10516058
ABSTRACT:
A functional optical device has cores which are trenches, different portions of the cores being formed from different core materials. The optical device can be formed by forming trenches5,7,9within a substrate (normally a substrate1covered by a cladding layer3), covering at least part of at least one trench7with a cover11, depositing a first cladding material to fill the trenches5,9which are not covered, removing the cover11, depositing a second cladding layer15of a second cladding material to fill the trenches7which were previously covered, removing core material outside the trenches5,7,9and applying a cladding layer to cover the trenches.
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Aye Myint Myint
Kong Hsin Yuan Kenneth
Si Junjie
Suzuki Hisanori
Takahashi Shiro
Conley & Rose, P.C.
Connelly-Cushwa Michelle
Hoya Corporation
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