A High Temperature Sensor Based on Sapphire Fiber Fabry-Perot Interferometer

被引：64

作者：

Wang, Botao ^{[1
]}

Niu, Yanxiong ^{[1
]}

Zheng, Shaowei ^{[1
]}

Yin, Yiheng ^{[1
]}

Ding, Ming ^{[2
]}

机构：

[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Res Inst Frontier Sci, Beijing 100191, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 02期

基金：

美国国家科学基金会;

关键词：

Temperature sensors; Optical fiber sensors; Temperature measurement; Interference; Ceramics; Optical fibers; Fabry-Perot; High temperature; sapphire fiber; sapphire wafer; Fourier transform;

D O I：

10.1109/LPT.2019.2957917

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：

A sapphire fiber high temperature sensor based on Fabry-Perot interference was studied in the paper. A sapphire wafer served as the Fabry-Perot cavity was fixed to the end face of the sapphire fiber. The sensor was encapsulated in an alumina ceramic tube-ceramic sleeve structure to improve structural stability. Experiment results showed the sensor had a wide temperature measurement range of 25 C-1550 C. The temperature sensitivity reached 32.5 pm/C at 1550 C. Furthermore, the temperature was demodulated from the interference spectrum through fast Fourier transform algorithm. It was concluded that the sapphire fiber sensor with advantages of small size, good stability and a wide range of temperature measurement is very promising for measuring high temperature.

引用

页码：89 / 92

页数：4