Optical fiber Fabry-Perot temperature sensor based on metal welding technology

被引：3

作者：

Chen, Peilun ^{[1
]}

Wu, Yue ^{[1
]}

Wang, Yaqi ^{[1
]}

机构：

[1] Beijing Informat Sci & Technol Univ, Beijing, Peoples R China

来源：

JOURNAL OF NANOPHOTONICS | 2023年 / 17卷 / 02期

关键词：

optical fiber sensor; Fabry-Perot interference; temperature sensor; metal welding; INTERFEROMETER; PROBE;

D O I：

10.1117/1.JNP.17.026001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present an optical fiber Fabry-Perot (F-P) temperature sensor based on metal welding technology. The fiber sensor is composed of a single-mode fiber and a metal capillary that are encapsulated by metal welding technology. The relationship between the cavity length and sensitivity is analyzed theoretically. The experimental results show that the sensitivity of the fabricated sensor reaches 3.85 nm/degrees C when the F-P cavity length is 171 mu m. In addition, the sensitivity of the F-P temperature sensor increases as the cavity length of the F-P temperature sensor decreases. The proposed sensor fabricated by metal welding technology has the advantages of a high sensitivity, simple fabrication, simple structure, and low cost. (c) 2023 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：8

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