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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 32 — Nov. 10, 2010
  • pp: 6232–6235

Simultaneous strain and temperature measurement using a compact photonic crystal fiber inter-modal interferometer and a fiber Bragg grating

Bo Dong, Jianzhong Hao, Chin-yi Liaw, Bo Lin, and Swee Chuan Tjin  »View Author Affiliations


Applied Optics, Vol. 49, Issue 32, pp. 6232-6235 (2010)
http://dx.doi.org/10.1364/AO.49.006232


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Abstract

An all-fiber sensor scheme for simultaneous strain and temperature measurement is presented. The sensing head is formed by serially connecting a polarization maintaining photonic-crystal-fiber-based inter-modal interferometer (IMI) with a fiber Bragg grating (FBG). The IMI, exhibiting an opposite strain response as compared to that of the FBG, is highly sensitive to strain, while it is insensitive to temperature. This has potential for improving the strain and temperature measurement resolutions. A sensor resolution of ± 8.3 με in strain and ± 2 ° C in temperature are experimentally achieved within a strain range of 0 957.6 με and a temperature range of 24 ° C 64 ° C , respectively.

© 2010 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 10, 2010
Revised Manuscript: October 13, 2010
Manuscript Accepted: October 15, 2010
Published: November 3, 2010

Citation
Bo Dong, Jianzhong Hao, Chin-yi Liaw, Bo Lin, and Swee Chuan Tjin, "Simultaneous strain and temperature measurement using a compact photonic crystal fiber inter-modal interferometer and a fiber Bragg grating," Appl. Opt. 49, 6232-6235 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-32-6232


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References

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