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Proceedings Paper

Twisted optical microfiber for refractive index sensing
Author(s): Changrui Liao; Dongming Wang; Xiaoying He; Minwei Yang
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Paper Abstract

In this paper, a simple, compact and robust refractive index sensor has been developed, which is constructed by twisting a pair of silica microfiber to form a coupling device. The transmission spectrum of the device is highly sensitive to the surrounding refractive index and the highest sensitivity of -1665nm/RIU (refractive index unit) can be obtained at the refractive index value of 1.3605 for the fibers with diameter of 2.1μm. The developed sensor device is easy to construct, of low cost and compatible with optical fiber system.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534I (17 May 2011); doi: 10.1117/12.885826
Show Author Affiliations
Changrui Liao, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Dongming Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Xiaoying He, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Minwei Yang, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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