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Optical Engineering

Numerical optimization approach for designing bandpass filters using fiber Bragg gratings
Author(s): Jinho Bae; Joohwan Chun
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Paper Abstract

We propose new methodology for designing an almost ideal bandpass filter as a cascade of two piecewise uniform fiber Bragg gratings. The first grating is designed to get the desired bandpass amplitude spectrum. The second is used to flatten the group delay characteristics of the first. The parameters of the gratings are determined by using the simulated-annealing technique and the steepest-descent algorithm. At the expense of a complicated structure, we are able to obtain an almost ideal bandpass filter with a flat group delay.

Paper Details

Date Published: 1 January 2003
PDF: 7 pages
Opt. Eng. 42(1) doi: 10.1117/1.1524609
Published in: Optical Engineering Volume 42, Issue 1
Show Author Affiliations
Jinho Bae, Korea Advanced Institute of Science and Technology (South Korea)
Joohwan Chun, Korea Advanced Institute of Science and Technology (South Korea)

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