Mach-Zehnder Interferometer for High Temperature(1000℃)Sensing Based on a Few-Mode Fiber

• 作者: Juan LIU Chaowei LUO Hua YANG Zhen YI Bin LIU Xingdao HE Qiang WU
• 来源期刊: 光子传感器（英文版）
• 年，卷（期）: 2021,（3）
• 页码范围: 341-349
• 页数: 9页
• 语种: 英文
• DOI: 10.1007/s13320-020-0596-z

摘要

A Mach-Zehnder interferometer(MZI)for high temperature(1 000℃)sensing based on few mode fiber(FMF)was proposed and experimentally demonstrated.The sensor was fabricated by fusing a section of FMF between two single-mode fibers(SMFs).The structure was proven to be an excellent high temperature sensor with good stability,repeatability,and high temperature sensitivity(48.2pm/℃)after annealing process at a high temperature lasting some hours,and a wide working temperature range(from room temperature to 1 000℃).In addition,the simple fabrication process and the low cost offered a great potential for sensing in high temperature environments.