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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 5 — May. 1, 2009
  • pp: 1042–1048

Optimal method of designing triangular-spectrum fiber Bragg gratings with low index modulation and chirp-free structure

Yongkang Gong, Aoxiang Lin, Xiaohong Hu, Leiran Wang, and Xueming Liu  »View Author Affiliations


JOSA B, Vol. 26, Issue 5, pp. 1042-1048 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001042


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Abstract

Combining the traditional nonlinear least squares (NLLS) method with a discrete layer peeling (DLP) algorithm, we propose a new method (for the first time to our knowledge) to synthesize triangular-spectrum fiber Bragg gratings (TS-FBGs) with chirp-free structures. In this method, the DLP algorithm is used to generate an appropriate initial value, and the NLLS method is successfully used to optimize the design parameters from the initial value in the previous step. Numerical results show that our method can design both single- and multiple-channel TS-FBGs with their maximum index modulations being effectively suppressed to a feasible level. These novel TS-FBGs thus designed can act as wavelength readout devices and provide potential applications to wavelength interrogation in optical sensor systems.

© 2009 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 20, 2008
Revised Manuscript: March 19, 2009
Manuscript Accepted: March 20, 2009
Published: April 17, 2009

Citation
Yongkang Gong, Aoxiang Lin, Xiaohong Hu, Leiran Wang, and Xueming Liu, "Optimal method of designing triangular-spectrum fiber Bragg gratings with low index modulation and chirp-free structure," J. Opt. Soc. Am. B 26, 1042-1048 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-5-1042


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