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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 10 — Oct. 1, 2012
  • pp: 100601–100601

Optical fiber methane sensor based on SAN film containing cryptophane-E-(OEt)6

Guangqin Zhu, Xueming Li, Chuanyi Tao, Jing Huang, and Jianchun Yang  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 10, pp. 100601-100601 (2012)


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Abstract

A novel long-period fiber grating (LPFG) film methane sensor is designed and applied successfully. The sensor is constructed by depositing a thin styrene-acrylonitrile (SAN) film containing the new compound cryptophane-E-(OEt)6 onto the cladding surface of the LPFG. This film is sensitive to methane gas. Methane causes a change in the refractive index of the sensing film, which can be measured by shifting the resonance wavelength. Experimental results show that the resonant wavelength shifts to the longer wavelength, with increasing methane concentration at a range of 0.0%-3.5% (v/v). A linear relationship is obtained within the test range. Detection limit is estimated at 0.2%, and response time is 60 s. No significant interference is detected from dry air, O2, CO, CO2, and H2. This novel methane sensing material has great application potential due to its advantages.

© 2012 Chinese Optics Letters

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.1880) Instrumentation, measurement, and metrology : Detection
(130.6010) Integrated optics : Sensors

ToC Category:
Fiber Optics and Optical Communications

Citation
Guangqin Zhu, Xueming Li, Chuanyi Tao, Jing Huang, and Jianchun Yang, "Optical fiber methane sensor based on SAN film containing cryptophane-E-(OEt)6," Chin. Opt. Lett. 10, 100601-100601 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-10-100601

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