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Proceedings Paper

Temperature-insensitive pressure or strain sensing technology with fiber optic hybrid Sagnac interferometer
Author(s): Yuanhong Yang; Lin Lu; Shuo Liu; Wei Jin; Zonghu Han; Yaohui Cao
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Paper Abstract

The transmission spectrum characteristic of two-segment polarization maintaining fibers Sagnac interferometer was investigated and simulated in detail and a temperature-insensitive pressure or strain sensing technology was proposed. An experimental hybrid Sagnac interferometer was built and the solid core polarization maintaining photonic crystal fiber was taken as the sensing probe. The side pressure sensitive coefficients and the temperature crosstalk drift were measured and compared. The experimental results show that the side pressure sensitive coefficient was ~0.2877 nm/N and the temperature drift was less than 0.1 pm/°C.

Paper Details

Date Published: 12 May 2016
PDF: 6 pages
Proc. SPIE 9852, Fiber Optic Sensors and Applications XIII, 985216 (12 May 2016); doi: 10.1117/12.2223630
Show Author Affiliations
Yuanhong Yang, BeiHang Univ (China)
Lin Lu, BeiHang Univ. (China)
Shuo Liu, BeiHang Univ. (China)
Wei Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Zonghu Han, Xi'an Flight Automatic Control Research Institute (China)
Yaohui Cao, Xi'an Flight Automatic Control Research Institute (China)


Published in SPIE Proceedings Vol. 9852:
Fiber Optic Sensors and Applications XIII
Eric Udd; Gary Pickrell; Henry H. Du, Editor(s)

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