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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8727–8741

UV-induced modification of stress distribution in optical fibers and its contribution to Bragg grating birefringence

N. Belhadj, Y. Park, S. LaRochelle, K. Dossou, and J. Azaña  »View Author Affiliations

Optics Express, Vol. 16, Issue 12, pp. 8727-8741 (2008)

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This paper discusses the importance of stress-induced contributions to the photo-induced birefringence observed in fiber Bragg gratings. Optical tomography measurements are performed in exposed and unexposed fibers to extract the stress profiles induced by UV-writing of fiber Bragg gratings for various exposure levels. A photoelastic analysis and a high-order isoparametric finite elements method are then used to calculate the birefringence caused by stress profile modifications. The results are compared to the birefringence directly measured by spectral analysis of a chirped fiber grating with multiple phase-shifts. We can therefore estimate the fraction of the photo-induced birefringence due to stress-induced anisotropy following UV exposure.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(060.3738) Fiber optics and optical communications : Fiber Bragg gratings, photosensitivity

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 11, 2008
Revised Manuscript: May 26, 2008
Manuscript Accepted: May 26, 2008
Published: May 29, 2008

N. Belhadj, Y. Park, S. LaRochelle, K. Dossou, and J. Azaña, "UV-induced modification of stress distribution in optical fibers and its contribution to Bragg grating birefringence," Opt. Express 16, 8727-8741 (2008)

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