光通信技术2017，Vol.41Issue(8)：25-28,4.DOI:10.13921/j.cnki.issn1002-5561.2017.08.007
倾斜少模光纤光栅扭转传感研究
Research on tilted few-mode fiber Bragg grating twist sensor
摘要
Abstract
In this paper,a twist sensor structure based on tilted fiber Bragg grating (TFBG) in few-mode fiber has been proposed.The basic principle of the twist sensor has been discussed and its sensing characteristics have been demonstrated.It is experimentally confirmed that few-mode fiber with TFBG used as twist sensoris much more sensitive than common few-mode fiber.The twisting sensibility of several sets of few-mode TFBG with different tilted angle has been measured and analyzed.It was found the one with titled angle of 1 degree isthe most sensitive.The proposed twist sensor based on few-mode TFBG has simple structure,high sensitivity and is easy to be integrated with the measured object.Moreover,the light intensity difference is almost linearly changed with the twist angle when the twist angle ranges from 0° to 180.关键词
倾斜光栅/少模光纤/扭转传感Key words
tilted fiber Bragg grating/few-mode fiber/twist sense分类
信息技术与安全科学引用本文复制引用
顾昌晟,陈婕,刘心宇,黄梦,张琳,张祖兴..倾斜少模光纤光栅扭转传感研究[J].光通信技术,2017,41(8):25-28,4.基金项目
大学生创新训练计划项目(No.201610293010Z)资助 （No.201610293010Z）
江苏特聘教授资助项目(No.RK002STP14001)资助 （No.RK002STP14001）
江苏省“六大人才高峰”项目(No.2015-XCL-023)资助 （No.2015-XCL-023）
南京邮电大学人才引进项目(Nos.NY214002,NY215002)资助 （Nos.NY214002,NY215002）
江苏省自然科学基金(BK20161521)资助. （BK20161521）
