基于多模与熊猫光纤耦合的温度与应变特性研究  

Temperature and Strain Characteristics Based on Coupling of Multimode and Panda Fiber

作　　者：申万梅 刘昌宁 江超 李宏 郭小珊 孙四梅 SHEN Wanmei;LIU Changning;JIANG Chao;LI Hong;GUO Xianshan;SUN Simei(College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002, China)

机构地区：[1]湖北师范大学物理与电子科学学院,湖北黄石435002

出　　处：《压电与声光》2021年第4期474-478,共5页Piezoelectrics & Acoustooptics

基　　金：湖北师范大学2015年优秀创新团队基金资助项目(T201502);2020年度湖北省高等学校优秀中青年科技创新团队计划基金资助项目(T2020014)。

摘　　要：该文基于多模与熊猫光纤耦合设计了一款新型马赫-曾德尔干涉仪传感器,该传感器对温度和轴向应变均较灵敏,在温度或应变变化时,传感器透射谱谐振峰波长发生线性漂移,通过考察谐振峰波长偏移量来感知应变与环境温度。实验结果表明,测得最大温度灵敏度为65.45 pm/℃,最大应变灵敏度为-1.9 pm/με。利用传感器透射谱谐振峰两个波谷的温度和应变灵敏度构建测量矩阵,实现了温度与应变的同时测量,消除了交叉敏感。A novel Mach-Zehnder interferometer based on coupling of multimode and panda fiber.The sensor is sensitive to temperature and axial strain.When the temperature or strain changes,the wavelength of the resonant peak of the transmission spectrum of the sensor shifts linearly.The change of ambient temperature and axial strain is detected by studying the wavelength shifts of the resonance peak of the sensor.The experimental results show that the maximum temperature sensitivity is 65.45 pm/℃and the maximum strain sensitivity is-1.9 pm/με.Based on the temperature and axial strain sensitivity of the two troughs of the resonant peak of the transmission spectrum of the sensor,the measurement matrix is constructed to realize the simultaneous measurement of temperature and axial strain and the cross sensitivity is eliminated.

关 键 词：光纤传感器 马赫-曾德尔干涉仪 熊猫光纤 光纤熔接 温度和应变 

分 类 号：TN253[电子电信—物理电子学]