A High-Sensitivity Temperature Sensor Based on Glycerol-Filled Tellurite Microstructure Optical Fiber

被引：14
|
作者：
Zhou, Xue [1 ]
Li, Shuguang [1 ]
Yan, Xin [1 ]
Zhang, Xuenan [1 ]
Cheng, Tonglei [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Peoples R China
来源：
IEEE ACCESS | 2019年 / 7卷
基金：
中国国家自然科学基金;
关键词：
Mode interference; glycerol; temperature sensor; tellurite microstructure optical fiber; REFRACTIVE-INDEX; INTERFEROMETER; FABRICATION;
D O I：
10.1109/ACCESS.2019.2958386
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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/degrees C at the working wavelength around 1.95 mu 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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页码：180244 / 180250
页数：7
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