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Proceedings Paper

Polarization-dependent bending sensor with temperature insensitivity
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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 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212O (17 October 2012); doi: 10.1117/12.966389
Show Author Affiliations
Oh-Jang Kwon, Hanyang Univ. (Korea, Republic of)
Hyun-Joo Kim, Hanyang Univ. (Korea, Republic of)
Jeehyun Kim, Kyongbuk National Univ. (Korea, Republic of)
Byung Sup Rho, Korea Photonics Technology Institute (Korea, Republic of)
Chang-Seok Kim, Pusan National Univ. (Korea, Republic of)
Myung-Yong Jeong, Pusan National Univ. (Korea, Republic of)
Young-Geun Han, Hanyang Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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