Highly sensitive temperature sensor based on D-shaped microfiber with high birefringence

被引：3

作者：

Luo, Haipeng ^{[1
]}

Sun, Qizhen

Xu, Zhilin

Jia, Weihua

Liu, Deming

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

来源：

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

D shaped-microfiber; high birefringence; Sagnac loop; temperature sensor;

D O I：

10.1117/12.2059469

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high sensitive temperature sensor based on D-shaped microfiber with high birefringence is proposed and demonstrated. In order to obtain D-shaped microfiber, we polish a single mode fiber (SMF) and then taper down the polished region into micrometer size. By utilizing Sagnac loop interferometer, we achieve high refractive index (RI) sensitivity of 9951nm/RIU. Further, we realize temperature detection assisted by sucrose solution with high thermo-optic coefficient. Experimental results demonstrate high temperature sensitivity up to -0.98921nm/degrees C within the range of 22 degrees C-60 degrees C. The sensor is featured with high sensitivity, compact structure and easy fabrication.

引用

页数：4

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