G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/18 (2006.01) G02B 6/02 (2006.01)
Patent
CA 2447169
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.
Bernard Pierre
Gregoire Nathalie
Lafrance Ghislain
Robic
Teraxion Inc.
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