Simultaneous measurement of strain and temperature using Fabry-Pérot interferometry and antiresonant mechanism in a hollow-core fiber

• 作者: Chong He Cheng Zhou Qian Zhou Shiyi Xie Mengzhe Xiao Jiajun Tian Yong Yao
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: Instrumentation, Measurement, and Optical Sensing
• 页码范围: 22-27
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL202119.041201

摘要

A fiber-optic sensor for the simultaneous measurement of strain and temperature is proposed and experimentally dem-onstrated based on Fabry-Pérot[FP]interference and the antiresonance[AR]mechanism.The sensor was implemented using a single-mode fiber[SMF]-hollow-core fiber-SMF structure.A temperature sensitivity of 21.11 pm/C was achieved by tracing the troughs of the envelope caused by the AR mechanism,and a strain sensitivity of 2 Pm/με was achieved by detecting the fine fringes caused by the FP cavity.The results indicate that the dual-parameter sensor is stable and reliable.