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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 15 — Aug. 1, 2007
  • pp: 2245–2247

Simultaneous independent measurement of strain and temperature based on long-period fiber gratings inscribed in holey fibers depending on air-hole size

Young-Geun Han, Suho Song, Gil Hwan Kim, Kwanil Lee, Sang Bae Lee, Ju Han Lee, Chang Hyun Jeong, Chi Hwan Oh, and Hee Jeon Kang  »View Author Affiliations


Optics Letters, Vol. 32, Issue 15, pp. 2245-2247 (2007)
http://dx.doi.org/10.1364/OL.32.002245


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Abstract

We propose and experimentally demonstrate a simple and flexible scheme for the simultaneous measurement of strain and temperature using long-period fiber gratings (LPFGs) based on versatile holey fibers (HFs) with different air-hole sizes. The strongly resonant LPFGs (as much as 24 dB ) can be successfully achieved. The LPFGs inscribed in the HFs have similar temperature sensitivities regardless of air-hole size because of the same material composition. The strain sensitivities of the LPFGs, however, are different, since holey fibers have different cross-sectional areas depending on the air-hole size. The strain sensitivities of the HF-based LPFGs are enhanced by a factor larger than 2 as the air-hole size increases.

© 2007 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: April 27, 2007
Revised Manuscript: June 14, 2007
Manuscript Accepted: June 19, 2007
Published: July 25, 2007

Citation
Young-Geun Han, Suho Song, Gil Hwan Kim, Kwanil Lee, Sang Bae Lee, Ju Han Lee, Chang Hyun Jeong, Chi Hwan Oh, and Hee Jeon Kang, "Simultaneous independent measurement of strain and temperature based on long-period fiber gratings inscribed in holey fibers depending on air-hole size," Opt. Lett. 32, 2245-2247 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-15-2245

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