Miniature fiber-optic temperature sensor based on optical coating interference

被引：4
|
作者：
Gao, Xiaodan [1 ,2 ]
Yang, Minghong [2 ,3 ]
Peng, Jiankun [2 ]
Lv, Dajuan [2 ]
机构：
[1] Wuhan Donghu Univ, Elect Informat Engn Coll, Wuhan 430212, Peoples R China
[2] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430070, Peoples R China
[3] Minist Educ, Key Lab Fiber Opt Sensing Technol & Informat Proc, Wuhan, Peoples R China
来源：
OPTIK | 2017年 / 130卷
基金：
中国国家自然科学基金;
关键词：
Optical coating interference; Temperature sensor; Theoretical simulation; Optical fiber; THIN-FILM;
D O I：
10.1016/j.ijleo.2016.11.114
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A temperature sensor with Fabry-Perot cavity formed by dielectric film on the tip of multimode fiber is theoretically simulated and experimentally demonstrated. The sensor is proved to be simple in configuration, low cost and easy for batch fabrication. The thermooptic effect and thermal expansion property of the thin-film materials, and optical coating interference theory were analyzed by MATLAB in the simulation. Experimental result shows that the repeatability error of the fabricated temperature sensor is 6.67%, when the environment tempeiature changes from 200 degrees C to 700 degrees C, and the temperature characteristic of interference fringes is almost the same as in simulation. The simulation analysis can be used to choose thin film materials and coating formula which is sensitive to temperature and robust for tolerance. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：1014 / 1020
页数：7
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