A High-Sensitivity Temperature Sensor Based on Glycerol-Filled Tellurite Microstructure Optical Fiber
A High-Sensitivity Temperature Sensor Based on Glycerol-Filled Tellurite Microstructure Optical Fiber
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基于甘油填充碲酸盐微结构光纤的高灵敏度温度传感器
DOI：
10.1109/access.2019.2958386
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发表时间：
2019
期刊：
影响因子：
3.9
通讯作者：
Cheng Tonglei
中科院分区：
文献类型：
--
作者：
Zhou Xue;Li Shuguang;Yan Xin;Zhang Xuenan;Cheng Tonglei
将碲酸盐微结构光纤（MOF）夹在两个标准石英单模光纤之间，形成单模-多模-单模光纤结构，制作了一种高灵敏度温度传感器。将高热光系数的甘油填充到碲酸盐MOF的空气孔中作为热介质。利用多模干涉效应，通过输出光谱的移动来测量温度变化，在工作波长1.95 μ m附近，实验灵敏度高达273 pm/°C。通过对比实验，该传感器在近红外和中红外波长范围内具有高灵敏度、紧凑性和鲁棒性。
A high-sensitivity temperature sensor was fabricated based on a tellurite microstructure optical fiber (MOF) sandwiched between two standard silica single mode fibers to form a single mode-multimode-single mode fiber structure. Glycerol with high thermo-optical coefficient was filled into the air holes of the tellurite MOF as its thermal medium. The temperature change can be obtained by the movement of the output spectrum based on multimode interference effect, and the experimental sensitivity reaches as high as 273 pm/°C at the working wavelength around $1.95~\mu \text{m}$ . By conducting comparative experiments, the sensor in this work is proved to be a highly sensitive, compact, robust sensor operating at the near- and mid-infrared wavelength range.
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