The photonic crystal fiber filled with magnetic fluid for magnetic field sensing

Yuyan Zhang; Ning Liu; Na Zhang; Qingzhong Gao; Xin Li; Meihui Yu; Yunpeng Deng; Xiaotong Shi; Mingyu Li

doi:10.1117/12.2675355

25 May 2023 The photonic crystal fiber filled with magnetic fluid for magnetic field sensing

Yuyan Zhang, Ning Liu, Na Zhang, Qingzhong Gao, Xin Li, Meihui Yu, Yunpeng Deng, Xiaotong Shi, Mingyu Li

Proceedings Volume 12636, Third International Conference on Machine Learning and Computer Application (ICMLCA 2022); 126362L (2023) https://doi.org/10.1117/12.2675355
Event: Third International Conference on Machine Learning and Computer Application (ICMLCA 2022), 2022, Shenyang, China

Abstract

A novel magnetic field sensing method is proposed based on the photonic crystal fiber (PCF) filled magnetic fluid (MF). Firstly, the relationships between the loss of PCF and magnetic field under different temperature (20℃, 50℃and 80℃) were analyzed theoretically by finite element method combining perfect match condition. It could be concluded that, when the external magnetic field rose from 20Gs to 300Gs, the PCF loss sensitivity was linear, and the sensitivities were respectively 0.039dBm/Gs, 0.030dBm/Gs and 0.024dBm/Gs. Then, the results were of verified by experiments. The PCF loss sensitivities were respectively 0.037dBm/Gs, 0.030dBm/Gs and 0.023dBm/Gs under temperature T=20℃, 50℃and 80℃, and the magnetic resolutions were respectively 0.024 Gs, 0.066Gs and 0.084Oe. The results indicated that theoretical calculation was consistent basically with the experimental verification. This provides a new method for magnetic field sensing.

Citation Download Citation

Yuyan Zhang, Ning Liu, Na Zhang, Qingzhong Gao, Xin Li, Meihui Yu, Yunpeng Deng, Xiaotong Shi, and Mingyu Li "The photonic crystal fiber filled with magnetic fluid for magnetic field sensing", Proc. SPIE 12636, Third International Conference on Machine Learning and Computer Application (ICMLCA 2022), 126362L (25 May 2023); https://doi.org/10.1117/12.2675355

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