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Proceedings Paper

Compact and high sensitivity curvature sensor based on twin core fiber coupler
Author(s): Guolu Yin; Shuqin Lou; Hui Zou
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Paper Abstract

A compact and high sensitivity curvature sensor based on twin core fiber (TCF) coupler is proposed and demonstrated experimentally in the curvature range from 0 to 9.30 m-1. The TCF coupler is formed by splicing a section of 86.85 mm TCF between two single mode fibers (SMFs). A nonlinear blue-shift of the wavelength was observed when increasing the curvature. In the range from 3 m-1 to 9.30 m-1, the minimum and maximum sensitivity are - 2.5 nm/m-1 and - 14.7 nm/m-1, respectively. The dynamic range can be tailored by proper selection of the TCF length and the resonance dips.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212P (17 October 2012); doi: 10.1117/12.966834
Show Author Affiliations
Guolu Yin, Beijing Jiaotong Univ. (China)
Shuqin Lou, Beijing Jiaotong Univ. (China)
Hui Zou, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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