Optical fiber magnetic sensor based on magnetic fluid and long period fiber grating

Yajun Chen; Xiangnong Wu

doi:10.1117/12.2523008

14 February 2019 Optical fiber magnetic sensor based on magnetic fluid and long period fiber grating

Yajun Chen, Xiangnong Wu

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110484V (2019) https://doi.org/10.1117/12.2523008
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

In this paper, an optical fiber magnetic sensor is proposed by combining the long-period fiber grating with the sensitivity of the external refractive index and the refractive index of the magnetic fluid with the change of the external magnetic field. Theoretically, the sensitivity is 0.03602nm/Oe and the linearity of fit is 0.9998 when the magnetic field strength ranges from 30Oe to 300Oe at room temperature of 25°C.

Citation Download Citation

Yajun Chen and Xiangnong Wu "Optical fiber magnetic sensor based on magnetic fluid and long period fiber grating", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484V (14 February 2019); https://doi.org/10.1117/12.2523008

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