All-fiber-optic vector magnetic field sensor based on side-polished fiber and magnetic fluid

被引：73
|
作者：
Li, Yongxi [1 ]
Pu, Shengli [1 ,2 ]
Zhao, Yongliang [1 ]
Zhang, Rui [1 ]
Jia, Zixuan [1 ]
Yao, Jilei [1 ]
Hao, Zijian [1 ]
Han, Zhongxue [1 ]
Li, Dihui [1 ]
Li, Xinjie [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 24期
基金：
中国国家自然科学基金;
关键词：
MULTIMODE-SINGLE-MODE; SENSITIVITY;
D O I：
10.1364/OE.27.035182
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Akind of compact all-fiber-optic vector magnetic sensor is proposed and demonstrated. The sensor consists of a side-polished-fiber (SPF)-integrated with singlemode-no core-singlemode (SNS) fiber structure. Asection of side-polished fiber breaks the axially symmetry of the composite structure. The as-fabricated sensor supports vector sensing and has a magnetic field strength sensitivity of up to -2370 pm/mT over 2-6 mT range. The physical mechanism is that the modal interference is strongly influenced by the refractive index (RI) near the side-polished surface. The advantages of the proposed sensor lie in low cost, simple structure and easy manufacture, which make it attractive in the field of magnetic field vector sensing. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：35182 / 35188
页数：7
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