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Proceedings Paper

An in-fiber Mach-Zehnder interferometer based on dual side-hole fiber for highly sensitive measurement of curvature
Author(s): Xiaowei Ouyang; Huiyong Guo; Zhou Zheng; Liyun Ding; Ai Zhou
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Paper Abstract

An in-fiber Mach-Zehnder interferometer (MZI) based on dual side-hole fiber (DSHF) was demonstrated for highly sensitive measurement of curvature. The MZI-based bending sensor is fabricated by fusion splicing a piece of DSHF in between two standard single mode fibers (SMF) with cladding alignment. Due to the existence of the two air holes and the asymmetrical cross-section of the DSHF, the DSHF-based MZI is a core-cladding interferometer which is sensitive to directional bending. The bending characteristics are investigated experimentally within the curvature range of 0-8.172m-1. The bending sensitivities of the sensor are respectively 1.464 nm/m-1 and -1.394 nm/m-1 at their two opposite bending directions.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236V (23 April 2017); doi: 10.1117/12.2264078
Show Author Affiliations
Xiaowei Ouyang, Wuhan Univ. of Technology (China)
Huiyong Guo, Wuhan Univ. of Technology (China)
Zhou Zheng, Wuhan Univ. of Technology (China)
Liyun Ding, Wuhan Univ. of Technology (China)
Ai Zhou, Wuhan Univ. of Technology (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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