A FBG and Magnetostrictive Alloy based Magnetic Field Sensor with the Demodulation realized by Optoelectronic Oscillator
- Xiao, Dongrui
- Shao, Liyang
- Wang, Chao
- Wang, Guoqing
- Chen, Yun
- Zhao, Fang
- Yu, Feihong
Publication date
October 2021
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
A FBG and magnetostrictive alloy based magnetic field optical sensor is realized with the demodulation by a new dual-loop optoelectronic oscillator (OEO). Unlike the previously reported OED-based sensing schemes, the stability of this proposed scheme is enhanced by using the combination of a fiber ring laser (FRL) cavity and a dual-loop OEO structure. The sensitivity of −48.40476 Hz/mT is obtained. The stability is up to 0.194 ppm
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