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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 17373–17381

Observation of symmetrical reflection sidebands in a silica suspended-core fiber Bragg grating

M. L. V. Tse, K. M. Chung, L. Dong, B. K. Thomas, L. B. Fu, K. C. D. Cheng, C. Lu, and H. Y. Tam  »View Author Affiliations


Optics Express, Vol. 18, Issue 16, pp. 17373-17381 (2010)
http://dx.doi.org/10.1364/OE.18.017373


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Abstract

We have observed symmetrical sidebands in reflection from Bragg grating written in a silica suspended-core fiber, which are caused by longitudinal periodic refractive index modulation in the Ge-doped suspended-core fiber with a core diameter of ~1.3 μm. Our simulation shows that the effective refractive index of the guided mode varied by 0.023% along the fiber with a period of ~650 μm. The periodic index variation can lead to amplitude modulation of fiber Bragg gratings, which can be studied by observing the spectra of a fiber Bragg grating written in the Ge-doped core. In addition, we have also characterized the temperature and strain responses of the fiber Bragg gratings, and showed that both responses in the suspended-core fiber are 20 to 25% lower than that of a fiber Bragg grating written on a conventional fiber.

© 2010 OSA

OCIS Codes
(060.2400) Fiber optics and optical communications : Fiber properties
(060.4080) Fiber optics and optical communications : Modulation
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 19, 2010
Revised Manuscript: May 22, 2010
Manuscript Accepted: June 15, 2010
Published: July 30, 2010

Citation
M. L. V. Tse, K. M. Chung, L. Dong, B. K. Thomas, L. B. Fu, K. C. D. Cheng, C. Lu, and H. Y. Tam, "Observation of symmetrical reflection sidebands in a silica suspended-core fiber Bragg grating," Opt. Express 18, 17373-17381 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-16-17373


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