A Micro S-Shaped Optical Fiber Temperature Sensor Based on Dislocation Fiber Splice  

作　　者：Haitao YAN Pengfei LI Haojie ZHANG Xiaoyue SHEN Yongzhen WANG 

机构地区：[1]College of Physics Engineering, Henan University of Science & Technology, Luoyang, 471003, China [2]The Puyang Photoelectric Industry Technology Institute, Pu Yang, 457100, China

出　　处：《Photonic Sensors》2017年第4期372-376,共5页光子传感器（英文版）

基　　金：This work is sponsored by the the National Nature Science Foundation of China （No. 61675064）, Henan Industrial Technology Innovation Program, and Puyang Major Scientific and Technological Project.

摘　　要：We fabricated a simple, compact, and stable temperature sensor based on an S-shaped dislocated optical fiber. The dislocation optical fiber has two splice points, and we obtained the optimal parameters based on the theory and our experiment, such as the dislocation amount and length of the dislocation optical fiber. According to the relationship between the temperature and the peak wavelength shift, the temperature of the environment can be obtained. Then, we made this fiber a micro bending as S-shape between the two dislocation points, and the S-shaped micro bending part could release stress with the change in temperature and reduce the effect of stress on the temperature measurement. This structure could solve the problem of sensor distortion caused by the cross response of temperature and stress. We measured the S-shaped dislocation fiber sensor and the dislocation fiber without S-shape under the same environment and conditions, and the S-shaped dislocation fiber had the advantages of the stable reliability and good linearity.We fabricated a simple, compact, and stable temperature sensor based on an S-shaped dislocated optical fiber. The dislocation optical fiber has two splice points, and we obtained the optimal parameters based on the theory and our experiment, such as the dislocation amount and length of the dislocation optical fiber. According to the relationship between the temperature and the peak wavelength shift, the temperature of the environment can be obtained. Then, we made this fiber a micro bending as S-shape between the two dislocation points, and the S-shaped micro bending part could release stress with the change in temperature and reduce the effect of stress on the temperature measurement. This structure could solve the problem of sensor distortion caused by the cross response of temperature and stress. We measured the S-shaped dislocation fiber sensor and the dislocation fiber without S-shape under the same environment and conditions, and the S-shaped dislocation fiber had the advantages of the stable reliability and good linearity.

关 键 词：Dislocated optical fiber temperature sensor INTERFERENCE CROSS-SENSITIVITY 

分 类 号：TP212.11[自动化与计算机技术—检测技术与自动化装置] TE973[自动化与计算机技术—控制科学与工程]