高灵敏度镀膜拉锥光纤液体折射率传感器  

High sensitivity liquid refractive index sensors of the coated tapered fiber

作　　者：石朝霞[1] 胡兴柳[2] 杨忠[2] 叶全意[2] 王彦[1] SHI Zhaoxia HU Xingliu YANG Zhong YE Quanyi WANG Yah(College of Information and Electric Engineering, Anhui University of Technology, Maanshan Anhui 243002, China College of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, China)

机构地区：[1]安徽工业大学电气与信息工程学院,安徽马鞍山243002 [2]金陵科技学院智能科学与控制学院,南京211169

出　　处：《光通信技术》2017年第7期25-28,共4页Optical Communication Technology

基　　金：国家自然科学基金(No:61201109;No:51309001)资助;金陵科技学院人才引进基金项目(Jit-rcyj-201604)资助;金陵科技学院科研基金孵化项目(No:jit-fhxm-201606)资助;江苏省高校自然科学研究面上项目(No:16KJB510010)资助;安徽省自然科学基金(No:1308085ME79)资助;安徽省教育厅自然科学研究重点项目(No:KJ2013Z027;KJ2013A055)资助;安徽省科技厅科技攻关计划项目(No:12010402c182)资助

摘　　要：研究了一种测量精度较高的去包层引入反射元件的拉锥光纤折射率传感器。从拉锥光纤的各参数入手,分析研究了各因素对拉锥光纤灵敏度的不同影响效果。同时,为了提高系统的灵敏度,在拉锥光纤的末端引入反射元件(镀金膜),将镀膜后的拉锥光纤传感区浸入折射率不同的液体中,研究其折射率传感特性。This paper investigates a kind of fiber refractive index sensor which has the advantages of high measuring accuracy, by introducing reflective elements into the cladding layer. The paper analyzes the different effects of various factors on the sensitivity of the tapered optical fiber. By the way, in order to improve the sensitivity of the system, the reflection element （gold-plated） is introduced at the end of the tapered fiber, then the sensing area of the coated tapered fiber is immersed in liquid which with different refractive index, and analyzes the shift of optical transmission spectrum.

关 键 词：锥形光纤 折射率 金膜 反射率 光谱 灵敏度 

分 类 号：TN253[电子电信—物理电子学]