23 April 2017 Simultaneous measurement of both magnetic field strength and temperature with a microfiber coupler based fiber laser sensor
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103230H (2017) https://doi.org/10.1117/12.2263678
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
In this paper we propose and investigate a novel magnetic field sensor based of a ring erbium-doped fiber laser combined with a fiber Bragg grating and a Sagnac loop containing a microfiber coupler and magnetic fluid. In addition to the magnetic field sensing capability, the proposed structure can simultaneously provide temperature information. Thanks to the dual-ring structure of the MFC-Sagnac loop and the FBG-assisted resonant cavity, the output has two distinct laser peaks. Experimentally demonstrated magnetic field sensitivity of one of the laser peaks is 15 pm/mT in the magnetic field range from 0 to 100 mT. The spectral position of the second laser peak is independent on the magnetic field but shifts towards long wavelengths with a sensitivity of 13 pm/°C.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fangfang Wei, Fangfang Wei, Arun Kumar Mallik, Arun Kumar Mallik, Dejun Liu, Dejun Liu, Wei Han, Wei Han, Xiaokang Lian, Xiaokang Lian, Gerald Farrell, Gerald Farrell, Qiang Wu, Qiang Wu, Gang-Ding Peng, Gang-Ding Peng, Yuliya Semenova, Yuliya Semenova, } "Simultaneous measurement of both magnetic field strength and temperature with a microfiber coupler based fiber laser sensor", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103230H (23 April 2017); doi: 10.1117/12.2263678; https://doi.org/10.1117/12.2263678
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