传感技术学报2025，Vol.38Issue(3)：402-407,6.DOI:10.3969/j.issn.1004-1699.2025.03.004
基于八芯光纤的微双臂马赫-曾德尔干涉仪光纤曲率传感器
A Curvature Fiber Sensor Based on Mini-Two-Path Mach-Zehnder Interferometer with Eight-Core Fibers
季思含 1曹蕾 1潘思佳 1刘杰 2钱嘉懿 1庄浩然 1朱晓军 1赵继聪1
作者信息
- 1. 南通大学微电子学院(集成电路学院),信息科学与技术学院,半导体器件与集成电路设计封测省高校重点实验室,江苏 南通 226019
- 2. 甘肃银光聚银化工有限公司,甘肃 白银 730999
- 折叠
摘要
Abstract
A curvature fiber sensor with a mini-two-path Mach-Zehnder interferometer(MTP-MZI)structure based on eight-core fiber(ECF)for low-sensitivity curvature detection is proposed and demonstrated.The sensing path is an in-line MZI(IMZI)structure that di-rect sandwiches the ECF between two sections of single-mode fiber(SMF)and the reference path is a single-mode fiber only.A simple arc discharge technology is used to fabricate the MTP-MZI.In this experiment,three different lengths of ECF and SMF are used to con-struct interferometers with different interference lengths,resulting in different curvature sensitivities.When the curvature changes from 0-0.078 37 m-1,IMZI has no obvious interference phenomenon or extremely low sensitivity(only 5.503 dB/m-1),while MTP-MZI pro-posed has obvious interference and the maximum curvature sensitivity is-50.382 dB/m-1.The comparable experiment illustrates that the MTP-MZI structure can effectively enhance the sensor's sensitivity and provide an effective method to prepare a good-performance sensor with low-cost,miniaturized,and simple requirement technology.关键词
马赫-曾德尔干涉仪/八芯光纤/微双臂/曲率传感Key words
Mach-Zehnder interferometer/eight-core fiber/two-path/curvature sensing分类
信息技术与安全科学引用本文复制引用
季思含,曹蕾,潘思佳,刘杰,钱嘉懿,庄浩然,朱晓军,赵继聪..基于八芯光纤的微双臂马赫-曾德尔干涉仪光纤曲率传感器[J].传感技术学报,2025,38(3):402-407,6.
