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Proceedings Paper

Optical heterodyne fiber-coil deformation sensor operating in a wide dynamic range
Author(s): Yoshihiro Ohtsuka; Yoshiaki Nishi; S. Sawae; Satoshi Tanaka
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Paper Abstract

This paper presents a novel fiber-coil polarimetric sensor using highly birefringent single-mode fiber. A length of fiber is cut at its midpoint; one is rotated by 90 deg. around its axis and spliced to the other. The resultant single fiber is folded at the spliced point and the paired fibers, made in contact with each other along the length, are wound around a flexible cylinder. The coil deformation turns into a change in bending-induced retardation. The retardation measurement is immune from ambient temperature changes. The sensor performance is demonstrated with the sensitivity of the coil deformation 3.2 [deg./mm.turn].

Paper Details

Date Published: 1 August 1991
PDF: 6 pages
Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); doi: 10.1117/12.50004
Show Author Affiliations
Yoshihiro Ohtsuka, Hokkaido Univ. (Japan)
Yoshiaki Nishi, Hokkaido Univ. (Japan)
S. Sawae, Hokkaido Univ. (Japan)
Satoshi Tanaka, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 1572:
International Conference on Optical Fibre Sensors in China OFS(C) '91

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