Simultaneous measurement of magnetic field and temperature based on two anti-resonant modes in hollow core Bragg fiber

被引：19
作者：
Huang, Yi [1 ]
Qiu, Hong [1 ]
Deng, Chuanlu [1 ]
Lian, Zhenggang [2 ]
Yang, Yong [1 ]
Yu, Yang [1 ]
Hu, Chengyong [1 ]
Dong, Yanhua [1 ]
Shang, Yana [1 ]
Zhang, Xiaobei [1 ]
Wang, Tingyun [1 ]
机构：
[1] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Networks, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Shanghai 200444, Peoples R China
[2] Yangtze Opt Elect Co Ltd, Eastlake Dev Zone, 80 Fifth Hitech Ave, Wuhan 430205, Peoples R China
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 20期
基金：
中国国家自然科学基金;
关键词：
HIGH-SENSITIVITY; SENSOR;
D O I：
10.1364/OE.439444
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple and compact magnetic field and temperature dual-parameter sensor is proposed, which is based on a sandwich structure consisting of a section of hollow core Bragg fiber (HCBF) filled with magnetic fluid (MF) and two sections of single-mode fiber (SMF). The corresponding relationship between the resonant dip with different periods in the transmission spectrum and specific anti-resonant (AR) mode in the HCBF is determined. The resonant dips based on different AR modes shift differently when the magnetic field intensity and temperature change. Then, the simultaneous measurement of the magnetic field intensity and temperature can be achieved by utilizing a cross matrix. The experimental results show that the maximum magnetic field sensitivity in the range of 0-12 mT is 86.43 pm/mT, and the maximum temperature sensitivity in the range of 20-60 degrees C is 17.8 pm/degrees C. The proposed sensor has the advantages of compact structure, easy fabrication and low cost, thus, it has great potential applications in the field of simultaneous sensing of magnetic field intensity and temperature in complex environments. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：32208 / 32219
页数：12
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