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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 16 — Aug. 15, 2006
  • pp: 2405–2407

Optical fiber long-period grating with solgel coating for gas sensor

Zhengtian Gu, Yanping Xu, and Kan Gao  »View Author Affiliations


Optics Letters, Vol. 31, Issue 16, pp. 2405-2407 (2006)
http://dx.doi.org/10.1364/OL.31.002405


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Abstract

The novel long-period fiber grating (LPFG) film sensor is composed of the long-period grating coated with solgel-derived sensitive films. The characteristics of the transmissivity of the LPFG film sensor are studied. By analyzing the relation among the sensitivity S n , the thin film optical parameters, and the fiber grating parameters, the optimal design parameters of the LPFG film sensor are obtained. Data simulation shows that the resolution of the refractive index of this LPFG film sensor is predicted to be 10 8 . Experimentally, a LPFG film sensor for detection of C 2 H 5 O H was fabricated, and a preliminary gas-sensing test was performed.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(160.6060) Materials : Solgel
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 22, 2006
Revised Manuscript: May 20, 2006
Manuscript Accepted: May 31, 2006
Published: July 25, 2006

Citation
Zhengtian Gu, Yanping Xu, and Kan Gao, "Optical fiber long-period grating with solgel coating for gas sensor," Opt. Lett. 31, 2405-2407 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-16-2405

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