Temperature sensor based on second-order PbS fiber Solc-Sagnac interferometer

被引：2

作者：

Fu, Xinghu ^{[1
]}

Huang, Shuming ^{[1
]}

Li, Dongshu ^{[1
]}

Zhang, Jiangpeng ^{[1
]}

Fu, Guangwei ^{[1
]}

Jin, Wa ^{[1
]}

Bi, Weihong ^{[1
]}

Hu, Qingsong ^{[2
]}

机构：

[1] Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China

[2] China Univ Min & Technol, Engn Res Ctr Intelligent Control Underground Spac, Minist Educ, Xuzhou 221116, Jiangsu, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2021年 / 61卷

基金：

中国国家自然科学基金;

关键词：

Solc-Sagnac interferometer; PbS fiber; Birefringence; Temperature; Second-order;

D O I：

10.1016/j.yofte.2020.102437

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a temperature sensor based on a second-order PbS fiber Solc-Sagnac interferometer is presented. The PbS fiber and the two sections of single-mode fiber (SMF) are spliced together, it is named SMF-PbS-SMF structure. The light passes through the coupler and is divided into two beams of equal power, which are propagated in the Sagnac loop and travel through the two PbS fibers. The interference occurs after re-coupling of the two polarization controllers. The theory of temperature-sensitive birefringence effect in PbS fiber is analyzed and used for temperature sensing. The experimental results show that the transmission spectrum is red-shifted with increasing temperature, and the temperature sensitivity is 55.1 pm/degrees C in the range of 33.3 degrees C-78.8 degrees C. The proposed sensor has a simple structure and can be widely used in industrial production, biomedicine and other fields.

引用

页数：7

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