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Proceedings Paper

Deflection measurement using long-period grating sensor fabricated on side-hole single-mode fiber by CO2-laser
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Paper Abstract

In this paper, an optical Long-period fiber grating (LPG) fabricated by CO2 laser in side-hole single-mode fiber (SHLPG) for cantilever deflection measurement was demonstrated according with LPG flexural character. resonance wavelength of SHLPG (1547.3nm) has a total blue shift of approximately -0.83nm for deflection ranging from 0 to 40mm, and a red shift of 0.74nm with deflection ranging from 0 to -40mm. The results indicated that the SHLPG owns higher deflection sensitivity than that of normal LPG and fiber Bragg grating. The deflection sensitivity coefficient of SHLPG is -0.202nm/mm. The resonance wavelength shift has a good linear with the deflection increasing. The correlative coefficient is 0.9966. Factual deflection measuring can be got with high sensitivity through SHLPG easily.

Paper Details

Date Published: 9 November 2010
PDF: 6 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78532E (9 November 2010);
Show Author Affiliations
Juan Kang, China Jiliang Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Mengchao Li, Univ. of Shanghai for Science and Technology (China)
Jianfeng Wang, China Jiliang Univ. (China)
Xinyong Dong, China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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