High-sensitivity magnetic field sensor based on a dual-core photonic crystal fiber

被引：29
|
作者：
Wang, Guangyao [1 ]
Lu, Ying [1 ]
Yang, Xianchao [1 ]
Duan, Liangcheng [1 ]
Yao, Jianquan [1 ]
机构：
[1] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Key Lab Optoelect Informat Technol, Minist Educ, Tianjin 300072, Peoples R China
来源：
APPLIED OPTICS | 2019年 / 58卷 / 21期
基金：
中国国家自然科学基金;
关键词：
TUNABLE REFRACTIVE-INDEX;
D O I：
10.1364/AO.58.005800
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A high-sensitivity magnetic field sensor based on a dual-core photonic crystal fiber has been designed with an extremely short device length of 2000 mu m in this paper. The two cores of the fiber are separated by one air hole filled with magnetic fluid. The sensitive properties are investigated by the full-vector finite element method. Simulation results illustrate that the highest sensitivity can reach -442.7 pm/Oe in the magnetic field strength range of 30-520 Oe. The photonic crystal fiber filled with magnetic fluid, serving as an excellent platform for magnetic field sensing, has great potential applications in complex environments, remote sensing, and real-time monitoring fields. (C) 2019 Optical Society of America
引用
收藏
页码：5800 / 5806
页数：7
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