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Proceedings Paper

Magnetic field sensor based on magnetic fluid with side-polished fiber Bragg grating
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Paper Abstract

A novel optical fiber magnetic sensor based on magnetic fluid is proposed in this paper. Stable nano-particle CoFe2O4magnetic fluid was synthesized firstly; the CoFe2O4 magnetic fluid was injected in capillaries containing side-polished fiber Bragg grating (SPFBG) as sensing element. The reflected Bragg wavelength was changed by varying the magnetic field which is perpendicular to the axial of SPFBG. Magnetic field sensing experiment show that 35pm of wavelength shift at a magnetic field intensity of 16mT.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775378 (17 May 2011); doi: 10.1117/12.884750
Show Author Affiliations
Jixiang Dai, Wuhan Univ. of Technology (China)
Minghong Yang, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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