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Investigation on fiber optic curvature sensor based on SMF-FMF-SMF structure with up-taper fusion
Author(s): Qihang Zeng; Wei Xu; Ying Shen; Changyuan Yu; Fengze Tan
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Paper Abstract

A compact fiber-optic curvature sensor based on modal interferometer (MI) in few mode fiber (FMF) is presented and investigated both in theory and experiment. The proposed MI is simply constructed by splicing a 2-centimeter-long FMF between single mode fibers (SMFs) with built-in up-taper fusion mode, i.e., SMF-FMF-SMF structure is fabricated. Both the curvature sensing performance and temperature dependency are addressed, and the result shows that curvature within a range from 0 m-1 to 1.87 m-1 can be monitored without ambiguity and the temperature sensitivity can reach up to 111 pm/°C.

Paper Details

Date Published: 14 February 2019
PDF: 4 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484A (14 February 2019); doi: 10.1117/12.2522300
Show Author Affiliations
Qihang Zeng, National Univ. of Singapore (Singapore)
National Univ. of Singapore Suzhou Research Institute (China)
Wei Xu, Anlight Optoelectronic Technology Inc. (China)
Ying Shen, National Univ. of Singapore Suzhou Research Institute (China)
Soochow Univ. (China)
Changyuan Yu, National Univ. of Singapore Suzhou Research Institute (China)
The Hong Kong Polytechnic Univ. (Hong Kong, China)
Fengze Tan, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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