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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 9 — Mar. 20, 2007
  • pp: 1392–1396

Simultaneous temperature and strain measurements performed by a step-changed arc-induced long-period fiber grating

Gaspar Rego, Rosane Falate, Oleg Ivanov, and José Luís Santos  »View Author Affiliations


Applied Optics, Vol. 46, Issue 9, pp. 1392-1396 (2007)
http://dx.doi.org/10.1364/AO.46.001392


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Abstract

A compact sensor based on step-changed arc-induced long-period fiber gratings was implemented to discriminate between temperature and strain. The proposed sensor consists of a single long-period grating with two sections written consecutively in the SMF-28 fiber using the electric arc discharge technique. The two sections have the same period but different fabrication parameters. The operation of the sensor relies on the existence of a difference between the values of temperature and strain sensitivity of two neighboring resonances observed in the spectrum of the step-changed grating. The temperature and strain resolutions obtained for the sensor are 0.2 ° C and 35 μ ε , respectively.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

History
Original Manuscript: September 8, 2006
Manuscript Accepted: November 2, 2006
Published: March 1, 2007

Citation
Gaspar Rego, Rosane Falate, Oleg Ivanov, and José Luís Santos, "Simultaneous temperature and strain measurements performed by a step-changed arc-induced long-period fiber grating," Appl. Opt. 46, 1392-1396 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-9-1392


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References

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