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Proceedings Paper

High sensitivity strain sensor based on cascaded cladding mode resonant double-clad fiber and simple mode fiber
Author(s): Xinghu Fu; Dong Wang; Fan Liu; Jing Wen; Guangwei Fu; Weihong Bi
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Paper Abstract

A high sensitivity strain sensor based on cascaded cladding mode resonant double-clad fiber (DCF) and simple mode fiber is proposed. The basic principle of the sensor is analyzed, and the preparation of the sensor is performed. In different length of double-clad fiber, the strain sensing characteristics are analyzed detailedly. Experimental results show that, as the length of the connected double-clad fiber increases, the trough of the resonant spectrum will gradually increase. That is, the length of the access DCF is inversely proportional to the free spectral range. With the increase of tensile force, the resonance spectrum is blue shift, and the tension sensitivity can be up to -1.87nm/mε.

Paper Details

Date Published: 10 January 2018
PDF: 7 pages
Proc. SPIE 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications, 106180L (10 January 2018); doi: 10.1117/12.2295460
Show Author Affiliations
Xinghu Fu, Yanshan Univ. (China)
Dong Wang, Yanshan Univ. (China)
Fan Liu, Yanshan Univ. (China)
Jing Wen, Yanshan Univ. (China)
Guangwei Fu, Yanshan Univ. (China)
Weihong Bi, Yanshan Univ. (China)


Published in SPIE Proceedings Vol. 10618:
2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications
Xuping Zhang; Hai Xiao; Francisco Javier Arregui; Liquan Dong, Editor(s)

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