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Proceedings Paper

Effect of input polarization angle on force sensitivity of embedded single-mode polarimetric sensors
Author(s): Anand Krishna Asundi; H. K. Cheng; Siew-Lok Toh; Cho Jui Tay
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Paper Abstract

The effect of input angle of polarization on the force sensitivity of embedded single mode fibers was investigated. Two types of fiber specimens were used -- one consisted of a fiber embedded with its protective plastic coating intact while the other had a fiber stripped of this coating. Plane polarized light, whose direction could be varied, was launched into the fibers and the embedded portions were compressed. The polarization changes due to birefringence effects were recorded with a pair of polarizers and photodiodes. The experiments show that the amount of polarization change due to force varied with input polarization angle. Hence, the force sensitivity of polarimetric stress sensors depended on the input angle of the plane polarized light. It was also found that the load- induced polarization changes were more significant in the stripped specimen than in the fiber embedded with coating.

Paper Details

Date Published: 5 August 1996
PDF: 8 pages
Proc. SPIE 2872, Second Pacific Northwest Fiber Optic Sensor Workshop, (5 August 1996); doi: 10.1117/12.245569
Show Author Affiliations
Anand Krishna Asundi, Univ. of Hong Kong (Singapore)
H. K. Cheng, National Univ. of Singapore (Singapore)
Siew-Lok Toh, National Univ. of Singapore (Singapore)
Cho Jui Tay, National Univ. of Singapore (Singapore)


Published in SPIE Proceedings Vol. 2872:
Second Pacific Northwest Fiber Optic Sensor Workshop
Eric Udd, Editor(s)

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