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Proceedings Paper

Magnetic field sensor utilizing bent fiber taper and magnetic fluid
Author(s): Jie Li; Zhuang Tian; Li-Peng Sun; Bai-Ou Guan
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Paper Abstract

A magnetic field sensor is demonstrated by placing a bent-fiber taper modal interferometer inside a magnetic fluid sealed with an organic glass base. Owing to the strong refractive index dependency of the interferometer and magneto-optics property of the fluid, our sensor exhibits high sensitivity to the external magnetic field change. A linear wavelength dependency of ~58pm/Oe is experimentally obtained within a magnetic field range from 30 to 80 Oe. Our structure is featured of high sensitivity, fiber-compatibility, compactness, and robustness.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91579G (2 June 2014); doi: 10.1117/12.2059499
Show Author Affiliations
Jie Li, Jinan Univ. (China)
Zhuang Tian, Jinan Univ. (China)
Li-Peng Sun, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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