Functional optical devices and methods for producing them

Details Functional optical devices and methods for producing them Functional optical devices and methods for producing them

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.

REFERENCES:
patent: 6022671 (2000-02-01), Binkley et al.
patent: 6201918 (2001-03-01), Berkey et al.
patent: 6253015 (2001-06-01), Ukrainczyk
patent: 6304687 (2001-10-01), Inoue et al.
patent: 6449417 (2002-09-01), Binkley et al.
patent: 6466707 (2002-10-01), Dawes et al.
patent: 1067410 (2001-10-01), None
patent: 08005834 (1996-12-01), None

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