Optical fiber temperature sensor based on liquid crystal permeable side-hole microstructured fiber

Siming Sun1; Weihao Lin2; Liyang Shao3; Shuaiqi Liu2; Shangru Li1; Perry Ping.Shum4

10.1109/ICOCN55511.2022.9900934

2022

2330-7986

978-1-6654-5899-3

2022 20th International Conference on Optical Communications and Networks (ICOCN)

1-3

12-15 Aug. 2022

Shenzhen, China

A Sagnac interferometer temperature sensor based on liquid crystal filled side hole fiber (SHF) is designed and studied. Liquid crystal's refractive index is sensitive to temperature changes. Therefore, the temperature sensitivity of the liquid crystal-filled sagnac interferometer is enhanced. Finally, temperature measurement and temperature sensing with sensitivity up to 223pm/°C can be achieved. This is about 20 times that of the Fiber Bragg Grating (FBG) sensor.

Sagnac interferometer Side-hole fiber Liquid crystal Temperature sensor

第一

IEEE

1.School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, China
2.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau, China
3.Peng Cheng Laboratory, Shenzhen, China
4.Department of EEE, Southern University of Science and Technology, Shenzhen, China

Siming Sun,Weihao Lin,Liyang Shao,et al. Optical fiber temperature sensor based on liquid crystal permeable side-hole microstructured fiber[C],2022:1-3.