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Proceedings Paper

Fiber optic magnetic field sensor based on magnetic fluid and etched Hi-Bi fiber loop mirror
Author(s): Jing Wang; Ciming Zhou; Dian Fan; Yiwen Ou
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Paper Abstract

A novel magnetic field sensor consisting of magnetic fluid (MF) and etched highly birefringent fiber loop mirror (Hi-Bi FLM) is proposed in the paper. The sensor is based on the etched FLM interferometer by using the property of the controllable refractive index of MF under external magnetic field. The refractive index of MF is changed by a tunable magnetic field and the resonant dip wavelength produced by the FLM shifts correspondingly. The magnetic field intensity can be measured by detecting wavelength shift. High sensitivity of 11.31pm/Oe and a resolution of 0.1Oe are obtained for the proposed magnetic field sensor.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915711 (2 June 2014); doi: 10.1117/12.2059237
Show Author Affiliations
Jing Wang, Wuhan Univ. of Technology (China)
Ciming Zhou, Wuhan Univ. of Technology (China)
Dian Fan, Wuhan Univ. of Technology (China)
Yiwen Ou, Wuhan Univ. of Technology (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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