Simultaneous temperature and strain sensing based on a supermode interferometer  

作　　者：Zhifeng Wang Jing Wen Mengshi Zhu Heming Wei Liang Zhang Fufei Pang 王之凤;文菁;朱梦实;魏鹤鸣;张亮;庞拂飞

机构地区：[1]Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,Shanghai University,Shanghai 200444,China

出　　处：《Chinese Optics Letters》2025年第1期48-54,共7页中国光学快报(英文版)

基　　金：supported by the National Key Research and Development Program of China(No.2023YFB3209500);the National Natural Science Foundation of China(No.U2241237);the China Postdoctoral Science Foundation(No.2024M751934);the Postdoctoral Fellowship Program of CPSF(No.GZC20240973)。

摘　　要：A novel Mach–Zehnder interferometer(MZI)sensor based on multiple supermode interferences that can be used for dualparameter measurements of temperature and strain is proposed and demonstrated.The MZI is made by splicing a coupled four-core sapphire-derived fiber(FSDF)between two single-mode fibers,utilizing the differences in temperature response and strain response of different supermodes in the FSDF to realize the simultaneous measurement of the two parameters.Experimental results demonstrate that the proposed MZI can achieve up to 1600μεand 1000°C measurements with a temperature-strain cross-sensitivity of approximately 0.075°C/με.

关 键 词：SUPERMODE dual-parameter measurement fiber optic sensor Mach-Zehnder interferometer 

分 类 号：TN253[电子电信—物理电子学]