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

Jixiang Dai; Minghong Yang

doi:10.1117/12.884750

17 May 2011 Magnetic field sensor based on magnetic fluid with side-polished fiber Bragg grating

Jixiang Dai, Minghong Yang

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775378 (2011) https://doi.org/10.1117/12.884750
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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.

Citation Download Citation

Jixiang Dai and Minghong Yang "Magnetic field sensor based on magnetic fluid with side-polished fiber Bragg grating", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775378 (17 May 2011); https://doi.org/10.1117/12.884750

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