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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 9 — May. 1, 2006
  • pp: 1193–1195

Optic sensors of high refractive-index responsivity and low thermal cross sensitivity that use fiber Bragg gratings of > 80 ° tilted structures

Kaiming Zhou, Lin Zhang, Xianfeng Chen, and Ian Bennion  »View Author Affiliations


Optics Letters, Vol. 31, Issue 9, pp. 1193-1195 (2006)
http://dx.doi.org/10.1364/OL.31.001193


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Abstract

For the first time to the authors’ knowledge, fiber Bragg gratings (FBGs) with > 80 ° tilted structures have been fabricated and characterized. Their performance in sensing temperature, strain, and the surrounding medium’s refractive index was investigated. In comparison with normal FBGs and long-period gratings (LPGs), > 80 ° tilted FBGs exhibit significantly higher refractive-index responsivity and lower thermal cross sensitivity. When the grating sensor was used to detect changes in refractive index, a responsivity as high as 340 nm /refractive-index unit near an index of 1.33 was demonstrated, which is three times higher than that of conventional LPGs.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 19, 2006
Revised Manuscript: January 26, 2006
Manuscript Accepted: January 31, 2006

Citation
Kaiming Zhou, Lin Zhang, Xianfeng Chen, and Ian Bennion, "Optic sensors of high refractive-index responsivity and low thermal cross sensitivity that use fiber Bragg gratings of >80° tilted structures," Opt. Lett. 31, 1193-1195 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-9-1193


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