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Proceedings Paper

Temperature-insensitive strain sensor based on in-line Fabry-Perot interferometer
Author(s): Yiping Wang; Shen Liu; Changrui Liao; Zhengyong Li; Qiao Wang; Guolu Yin; Jun He; Bing Sun; Jing Zhao; Jian Tang
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Paper Abstract

We demonstrated a high-sensitivity strain sensor based on an in-line Fabry-Perot interferometer with an air cavity whose was created by splicing together two sections of standard single mode fibers. The sensitivity of this strain sensor was enhanced to 6.02 pm/με by improving the cavity length of the Fabry-Perot interferometer by means of repeating arc discharges for reshaping the air cavity. Moreover, such a strain sensor has a very low temperature sensitivity of 1.06 pm/°C, which reduces the cross-sensitivity problem between tensile strain and temperature.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915725 (2 June 2014);
Show Author Affiliations
Yiping Wang, Shenzhen Univ. (China)
Shen Liu, Shenzhen Univ. (China)
Changrui Liao, Shenzhen Univ. (China)
Zhengyong Li, Shenzhen Univ. (China)
Qiao Wang, Shenzhen Univ. (China)
Guolu Yin, Shenzhen Univ. (China)
Jun He, Shenzhen Univ. (China)
Bing Sun, Shenzhen Univ. (China)
Jing Zhao, Shenzhen Univ. (China)
Jian Tang, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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