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Proceedings Paper

Simultaneous strain and directional bending sensor based on eccentric-core fiber Bragg grating
Author(s): Jing Kong; Xiaowei Ouyang; Ai Zhou; Libo Yuan
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Paper Abstract

A fiber sensor based on cascaded eccentric-core fiber Bragg grating (ECFBG) and single mode fiber Bragg grating (SMFBG) is proposed and experimentally demonstrated to realize bending and axial strain measurement simultaneously. The ECFBG is sensitive to both bending and axial strain, and the SMFBG is insensitive to bend but sensitive to axial strain. The maximum bending sensitivities of the ECFBG are 36 pm/m-1 and -37 pm/m-1 at the bending direction of 0° and 180°, respectively. The strain sensitivities of the ECFBG and SMFBG are 0.76 pm/με and 0.72 pm/με, respectively.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032378 (23 April 2017); doi: 10.1117/12.2264957
Show Author Affiliations
Jing Kong, Harbin Engineering Univ. (China)
Heilongjiang Institute of Technology (China)
Xiaowei Ouyang, Wuhan Univ. of Technology (China)
Ai Zhou, Wuhan Univ. of Technology (China)
Libo Yuan, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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