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Proceedings Paper

Refractive index insensitive curvature sensor based on cladding-mode resonance of specialty triple-clad fiber
Author(s): Xinghu Fu; Haiyang Xie; Guangwei Fu; Qiang Liu; Weihong Bi
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Paper Abstract

A refractive index insensitive curvature sensor based on cladding-mode resonance of specialty triple-clad fiber (STCF) is proposed. The corresponding mode properties of STCF are investigated theoretically based on the coupled mode theory. The different mode dispersion curves are calculated and a resonance wavelength is obtained. A straightforward experiment is performed to prove the curvature sensitivity. Experimental results shows that the curvature sensitivity can be achieve -11.03374nm/m-1 in the range of 0~1.17m-1, and it also has good linearity. This curvature sensor has the advantages of simple structure, easy manufacturing, highly sensitivity and has no cross-sensitivity when it compared to the other sensors. Thus it can be used for curvature monitoring in time.

Paper Details

Date Published: 8 October 2015
PDF: 4 pages
Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 96790U (8 October 2015); doi: 10.1117/12.2199784
Show Author Affiliations
Xinghu Fu, Yanshan Univ (China)
Key Lab. for Special Fiber and Fiber Sensing (China)
Haiyang Xie, Yanshan Univ. (China)
Key Lab. for Special Fiber and Fiber Sensing (China)
Guangwei Fu, Yanshan Univ. (China)
Key Lab. for Special Fiber and Fiber Sensing (China)
Qiang Liu, Yanshan Univ. (China)
Key Lab. for Special Fiber and Fiber Sensing (China)
Weihong Bi, Yanshan Univ. (China)
Key Lab. for Special Fiber and Fiber Sensing (China)


Published in SPIE Proceedings Vol. 9679:
AOPC 2015: Optical Fiber Sensors and Applications
Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Gilberto Brambilla, Editor(s)

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