Open AccessThree-step design optimization for multi-channel fibre Bragg gratings
Author(s) -
Kazimir Y. Kolossovski,
R.A. Sammut,
Alexander V. Buryak,
Д. В. Степанов
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.001029
Subject(s) - fiber bragg grating , optics , channel (broadcasting) , minification , channel spacing , grating , coding (social sciences) , wavelength division multiplexing , computer science , materials science , optical fiber , physics , telecommunications , mathematics , wavelength , statistics , programming language
Methods to produce optimal designs for multi-channel fiber Bragg gratings (FBGs) with identical or close to identical channel-to-channel spectral characteristics are discussed. The proposed approach consists of three distinct steps. The first two steps (preliminary semi-analytic minimization and subsequent fine-tuning) do not depend on the grating design details, but on the number of channels only and can be readily applied to similar problems in other fields, e.g., in radio-physics and coding theory. The third step (spectral characteristic quality improvement) is FBG field specific. A comparison with other known optimization methods shows that the proposed approach yields generally superior results for small to moderate number of channels (N < 60).