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Proceedings Paper

Simultaneous measurement of strain and temperature using a high-birefringence fiber loop mirror and an erbium-doped fiber
Author(s): Jie Shi; Shilin Xiao; He Chen; Min Zhu; Meihua Bi
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Paper Abstract

A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. The high-birefringence fiber used in the configuration is capsule shaped polarization maintaining fiber, which serves as the sensor element. While the erbium-doped fiber acts as the temperature compensation module. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain. The experimental results show that the mean square errors for temperature and stain are 0.35°C and 13.34με, respectively. The proposed sensor configuration shows several merits, including simple in structure, easy fabrication, low cost and high sensitivity.

Paper Details

Date Published: 3 January 2011
PDF: 6 pages
Proc. SPIE 7990, Optical Sensors and Biophotonics II, 799007 (3 January 2011); doi: 10.1117/12.888234
Show Author Affiliations
Jie Shi, Shanghai Jiao Tong Univ. (China)
Shilin Xiao, Shanghai Jiao Tong Univ. (China)
He Chen, Shanghai Jiao Tong Univ. (China)
Min Zhu, Shanghai Jiao Tong Univ. (China)
Meihua Bi, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 7990:
Optical Sensors and Biophotonics II
Qingming Luo; Frank Chuang; Stefan Haacke; Chih-Chung Yang, Editor(s)

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