基于细芯光纤与双球结构的干涉型光纤传感器  

Interferometric Fiber Sensor Based on Thin Core Fiber and Double Spherical-Shape Structure

作　　者：李德强 曹晔[1] 宫顺顺 辛鹏程 孙朝阳 杨长龙 李丽君 LI Deqiang;CAO Ye;GONG Shunshun;XIN Pengcheng;SUN Zhaoyang;YANG Changlong;LI Lijun(School of Electronic Information,Qingdao University,Qingdao Shandong 266071,China;Shandong University of Science and Technology College of Electronic Communication and Physics,Qingdao Shandong 266590,China)

机构地区：[1]青岛大学电子信息学院,山东青岛266071 [2]山东科技大学电子通信与物理学院,山东青岛266590

出　　处：《传感技术学报》2018年第6期857-860,共4页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金应急管理项目(11444001)

摘　　要：制作了一种基于细芯光纤TCF(Thin-Core Fiber)和双球结构的干涉型光纤传感器。在两根单模光纤的一端分别制作球形结构,两个球形结构由细芯光纤相连构成MZ干涉结构,实现了对温度、折射率、拉力3个物理量的测量。实验结果表明,温度、折射率、拉力的灵敏度分别是0.066 5 nm/℃、-33.652 nm/RIU、-0.360 8 nm/N,且线性度良好。该传感结构在环境监测、医疗卫生和安全监测等领域有着广泛的应用。An interferometric optical fiber sensor based on thin-core fiber and double spherical-shape structure is fabricated.Two spherical-shape structures are fabricated on one end of two single-mode fiber,respectively. Then they are connected by a thin-core fiber to form a MZ interference structure,which is used to measure three physical quantities of temperature,refractive index and force.The experimental results show that the sensitivity of temperature,refractive index and tensile force are 0.066 5 nm/℃,-33.652 nm/RIU,-0.360 8 nm/N,respectively. And the linearity are good. The sensing structure is widely used in environmental monitoring,medical,health and safety monitoring.

关 键 词：光纤传感器 细芯光纤 温度 折射率 拉力 

分 类 号：TN253[电子电信—物理电子学]