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Design of sidetap fiber Bragg grating filters

✍ Scribed by Galina Nemova; Jessica Chauve; Raman Kashyap

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 491 KB
Volume: 259
Category: Article
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2005.09.064

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✦ Synopsis

A comprehensive theoretical treatment is presented for bound-mode to radiation mode coupling loss (transmission loss) and for bound-mode to bound-mode Bragg reflection (back reflection) in a sidetap fiber phase grating. The spectra of the reflection and transmission loss in a tilt angle range useful for fiber sidetap filter design is presented for the first time. Important dependencies between the designed wavelength of operation and parameters of the fiber grating, which give a clear understanding of the process of the fiber mode to radiation mode coupling and back reflection is also discussed. A practical procedure for the design of sidetap gain flattening filter is also presented.

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