期刊
OPTICS COMMUNICATIONS
卷 336, 期 -, 页码 5-8出版社
ELSEVIER
DOI: 10.1016/j.optcom.2014.09.026
关键词
Fiber optics sensor; Magnetic fluid; Microfiber; Magnetic field sensor
类别
资金
- National Basic Research Program of China (973 Program) [2010CB327804]
- National Natural Science Foundation of Zhejiang Province, China [Z13F050003]
- Natural Science Foundation of Zhejiang Province China [LY13F050004]
A magnetic field sensor is proposed based on the combination of magnetic fluid (MF) and an optical microfiber mode interferometer (MMI). It is measured that the MMI is highly sensitive to ambient refractive index (RI) with a high sensitivity up to 16,539 nm/RIU while RI of the MF is changeable with an external magnetic field strength. By monitoring wavelength shift of transmission spectrum of the MMI, magnetic field measurement is realized with a maximum sensitivity of -293 pm/Oe in the range of 0-220 Oe. (C) 2014 Elsevier B.V. All rights reserved.
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