All-fiber magnetic field sensor based on tapered thin-core fiber and magnetic fluid

被引：30
|
作者：
Zhang, Junying [1 ,2 ]
Qiao, Xueguang [1 ]
Yang, Hangzhou [1 ]
Wang, Ruohui [1 ]
Rong, Qiangzhou [1 ]
Lim, Kok-Sing [3 ]
Ahmad, Harith [3 ]
机构：
[1] Northwest Univ, Dept Phys, Xian 710069, Peoples R China
[2] HeXi Univ, Sch Phys & Mech & Elect Engn, Zhangye 734000, Peoples R China
[3] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia
来源：
APPLIED OPTICS | 2017年 / 56卷 / 02期
基金：
中国国家自然科学基金;
关键词：
PHOTONIC CRYSTAL FIBERS; OPTICAL MICROFIBER; INTERFEROMETER; FERROFLUID;
D O I：
10.1364/AO.56.000200
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method for the measurement of a magnetic field by combining a tapered thin-core fiber (TTCF) and magnetic fluid is proposed and experimentally demonstrated. The modal interference effect is caused by the core mode and excited eigenmodes in the TTCF cladding. The transmission spectra of the proposed sensor are measured and theoretically analyzed at different magnetic field strengths. The results field show that the magnetic sensitivity reaches up to -0.1039 dB/Oe in the range of 40-1600 e. The proposed method possesses high sensitivity and low cost compared with other expensive methods. (C) 2017 Optical Society of America
引用
收藏
页码：200 / 204
页数：5
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