Vector Magnetic Field Sensing Characteristics of the Magnetofluid-Encapsulated Polarization-Maintaining Fiber Single-End Offset Fusion Spliced Hollow-Core Fiber Structure

被引：10

作者：

Xu, Ronghui ^{[1
]}

Xu, Yifei ^{[1
]}

Luo, Ben ^{[1
]}

Zhang, Xingyu ^{[1
]}

Wei, Yuxin ^{[1
]}

Liu, Houquan ^{[1
]}

Deng, Hongchang ^{[1
]}

Yuan, Libo ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Guangxi Key Lab Optoelect Informat Proc, Guangxi Key Lab Opt Network & Informat Secur, Photon Res Ctr,Sch Optoelect Engn, Guilin 541004, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2024年 / 24卷 / 07期

关键词：

Magnetic field measurement; Magnetic fluid (MF); optical fiber sensor; vector magnetic field sensor; SIDE-POLISHED FIBER; REFRACTIVE-INDEX; HIGH-SENSITIVITY; 2-MODE FIBER; MODE FIBER; SENSOR; FLUID;

D O I：

10.1109/JSEN.2024.3366558

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article proposes and demonstrates an optical fiber vector magnetic field sensor based on magnetofluid-encapsulated polarization-maintaining fiber (PMF) single-end offset fusion spliced hollow-core fiber (HCF) structure. Thanks to the unique fast and slow axes structure of the PMF, when the two axes are offset fused with HCF, respectively, the sensor exhibits different responses to the magnetic field variation surrounding the fiber sensing structure. Experimental results reveal that at a dislocation offset of 6 mu m along the slow axis of the PMF with the HCF, a maximum magnetic field intensity sensitivity of -813 pm/mT and direction sensitivity of 245 pm/degrees within the range of 39-55 mT are obtained. Moreover, temperature-induced cross-sensitivity is effectively suppressed with a dislocation offset of the slow axis of the PMF fused with the HCF. The proposed magnetic field sensor has several advantages, such as low cost, easy manufacturing, immunity to electromagnet interference, all-optical fiber structure, and convenience of fiber optic multiplexing.

引用

页码：10144 / 10155

页数：12

共 46 条

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