Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-10-18
2005-10-18
Connelly-Cushwa, Michelle R. (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C359S034000, C438S032000
Reexamination Certificate
active
06956994
ABSTRACT:
A method for manufacturing a FBG having improved performances and an annealing-trimming apparatus for making the same are provided. The trimming and the annealing steps are advantageously combined into a single process in order to efficiently fabricate complex FBG filters with improved performance. The method comprises the steps of UV-writing a FBG in an optical fiber prior to annealing-trimming characteristics of the FBG by performing the sub-steps of monitoring characteristic data of the FBG while generating a controlled complex temperature profile along the FBG with a heating means according to the characteristic data for providing an accurate controlled annealing process of the FBG, thereby providing an accurate trimming thereof.
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Bernard Pierre
Gregoire Nathalie
Lafrance Ghislain
Connelly-Cushwa Michelle R.
Teraxion Inc.
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