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Optical Engineering

Optimized synthesis of fiber Bragg gratings with triangular spectrum for wavelength-interrogation application
Author(s): Yongkang Gong; Xueming Liu; Leiran Wang
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Paper Abstract

A novel method for synthesizing arbitrary-shape triangular-spectrum fiber Bragg gratings (TS-FBGs) is proposed. It involves the use of a discrete layer peeling method for exploiting initial guess and a simulated annealing method for optimizing the desired grating parameter. By comparing it to the reported TS-FBGs synthesis methods, the proposed method has advantages of reducing the maximum index modulation and smoothing index modulation profile simultaneously. We employ the proposed method to synthesize FBGs with symmetric, asymmetric, and right-angled triangular spectrum, all of which have the low and smooth index modulation profiles. The synthesized gratings can act simple and cost-effective wavelength-interrogation devices in optical sensor systems.

Paper Details

Date Published: 1 February 2011
PDF: 5 pages
Opt. Eng. 50(2) 024401 doi: 10.1117/1.3533030
Published in: Optical Engineering Volume 50, Issue 2
Show Author Affiliations
Yongkang Gong, Xi'an Institute of Optics and Precision Mechanics (China)
Xueming Liu, Xi'an Institute of Optics and Precision Mechanics (China)
Leiran Wang, Xi'an Institute of Optics and Precision Mechanics (China)

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