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Proceedings Paper

Fiber grating laser current sensor based on magnetic force
Author(s): Bai-Ou Guan; Shi-Ning Wang
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Paper Abstract

A novel fiber optic current sensor based on magnet force is proposed and experimentally demonstrated. A permanent magnet exerts transversal force to a dual polarization fiber grating laser due to the action of the magnet field of electric current. The transversal force modulates the fiber birefringence and therefore the polarization mode beat frequency of the fiber grating laser. The beat frequency changes linearly in response to the electric current.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75033V (5 October 2009); doi: 10.1117/12.834979
Show Author Affiliations
Bai-Ou Guan, Jinan Univ. (China)
Dalian Univ. of Technology (China)
Shi-Ning Wang, Dalian Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors

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