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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 29 — Oct. 10, 2009
  • pp: 5451–5458

Use of a single-multiple-single-mode fiber filter for interrogating fiber Bragg grating strain sensors with dynamic temperature compensation

Qiang Wu, Agus Muhammad Hatta, Yuliya Semenova, and Gerald Farrell  »View Author Affiliations


Applied Optics, Vol. 48, Issue 29, pp. 5451-5458 (2009)
http://dx.doi.org/10.1364/AO.48.005451


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Abstract

An interrogation technique for fiber Bragg grating (FBG) strain sensors with dynamic temperature compensation using a single-multiple-single-mode (SMS) fiber filter as a temperature compensating element is presented. Experimental results show that this technique offers a resolution of better than 3.4 με for strain measurements in the range from 0 to 1667 με , and the temperature induced error is as low as 34 με in the temperature range from 10 to 60 ° C . The temperature induced error could be further reduced if the temperature sensitivity (the rate of temperature induced wavelength shift) of the SMS filter was closer to that of the FBG sensor. This can be achieved by selecting a multimode fiber for the SMS filter with appropriate parameters. The proposed technique can be modified for simultaneous measurements of strain and temperature with an experimentally achieved resolution of better than 1 ° C .

© 2009 Optical Society of America

OCIS Codes
(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: June 15, 2009
Revised Manuscript: September 10, 2009
Manuscript Accepted: September 10, 2009
Published: October 1, 2009

Citation
Qiang Wu, Agus Muhammad Hatta, Yuliya Semenova, and Gerald Farrell, "Use of a single-multiple-single-mode fiber filter for interrogating fiber Bragg grating strain sensors with dynamic temperature compensation," Appl. Opt. 48, 5451-5458 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-29-5451

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