Design and research of magnetic field sensor based on grapefruit optical fiber filled with magnetic fluid

作     者：WANG Mengye JIN Wa LIU Xuejing SUN Wenjie ZHANG Chenhui BI Weihong WANG Mengye;JIN Wa;LIU Xuejing;SUN Wenjie;ZHANG Chenhui;Bi Weihong

作者机构：College of Information Science and EngineeringYanshan UniversityQinhuangdao066000China The Key Laboratory for Special Fiber and Fiber Sensor of Hebei ProvinceQinhuangdao066000China College of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai200093China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2022年第18卷第5期

页      面：269-275页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

基　　金：supported by the National Key R&D Program of China (No.2019YFC1407900) the National Natural Science Foundation of China (No.62005167) 

主　　题：fiber optical magnetic 

摘      要：A novel magnetic field sensor was proposed based on the grapefruit optical fiber with the magnetic fluid injected into the six air *** sensor utilizes the Mach-Zehnder interference(MZI).The light is transmitted through the single-mode fiber to the fusion splice point and is divided into two *** the light passes through the cladding air hole with magnetic fluid,it interferes with the core light,and the change of the interference light is related with the change of the magnetic *** sensor cavity length is 6 *** can be obtained from the experimental results that the magnetic field sensitivity reaches up to 2.243 nm/Oe with the range from 0 to 2.28 *** sensor has the advantages of easy fabrication,easy installation and low *** findings provide new ideas for the study of ocean wind electromagnetic fields.