Optical waveguides – Optical fiber waveguide with cladding – With graded index core or cladding
Reexamination Certificate
2007-11-13
2007-11-13
Font, Frank G. (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
With graded index core or cladding
C385S123000, C385S031000, C385S024000, C398S081000, C398S084000, C398S087000
Reexamination Certificate
active
11008995
ABSTRACT:
An exemplary embodiment of the present invention includes an optical circulator. The circulator may have, for example, a first port, a second port, and a third port. The first port may be configured to introduce light into the optical circulator. The system may also include a tunable fiber filter Bragg grating connected to the second port of the circulator and a tunable dispersion-compensating fiber Bragg grating connected to the third port of the optical circulator. The tunable dispersion compensating fiber Bragg grating and the tunable fiber filter Bragg grating may be configured to be tuned by a single actuator. This tuning may be either compression or strain tuning.
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PCT International Search Report mailed Nov. 13, 2006.
El-Shammaa Mary
General Dynamics Advanced Information Systems Inc.
Steptoe & Johnson
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