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Proceedings Paper

Structural bending sensor with temperature insensitivity based on a single polarization fiber
Author(s): Min-Seok Yoon; Oh-Jang Kwon; Hyun-Joo Kim; Suho Chu; Young-Geun Han
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Paper Abstract

We propose the temperature-insensitive bending sensor based on a hole-assisted single polarization fiber (SPF). Without fiber grating structures, the SPF-based sensing probe can provide the sensing technique to measure the bending change. If bending is applied to the SPF, two cutoff wavelengths are shifted to shorter wavelengths and the transmission power is diminished because the structural deformation of the SPF induced by bending changes birefringence depending on principle axes of the SPF. However, the applied temperature variation has no effect on the birefringence change severely and two cutoff wavelengths are not shifted by changing temperature. Therefore, the proposed SPF-based sensing probe with temperature insensitivity can measure the bending change effectively.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77535D (17 May 2011); doi: 10.1117/12.884457
Show Author Affiliations
Min-Seok Yoon, Hanyang Univ. (Korea, Republic of)
Oh-Jang Kwon, Hanyang Univ. (Korea, Republic of)
Hyun-Joo Kim, Hanyang Univ. (Korea, Republic of)
Suho Chu, Hanyang Univ. (Korea, Republic of)
Young-Geun Han, Hanyang Univ. (Korea, Republic of)

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

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