用于传感应用的双模光纤上光纤布拉格光栅阵列的在线写入

On-line Writing of Fiber Bragg Grating Array on a Two-mode Optical Fiber for Sensing Applications.

作者信息

Yu Haihu, Gao Wenjing, Jiang Xin, Guo Huiyong, Jiang Shan, Zheng Yu

机构信息

National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China.

Wuhan WUTOS Co., Ltd., Wuhan 430070, China.

出版信息

Materials (Basel). 2019 Apr 17;12(8):1263. doi: 10.3390/ma12081263.

DOI:10.3390/ma12081263

PMID:30999635

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6515046/

Abstract

On-line fabricated fiber Bragg grating (FBG) array and its sensing potentials have attracted plenty of attention in recent years. In this paper, FBG arrays are written on-line on a two-mode fiber, and this two-mode fiber Bragg grating (TM-FBG) is further experimentally investigated for temperature and curvature sensing. The responses of this sensor were characterized by 11.2 pm/°C and -0.21 dB/m for temperature and curvature, respectively. Based on the measurements, a dual-parameter fiber sensing system was developed, which can realize the quasi-distributed, simultaneous detection of temperature and curvature, making it suitable for structural health monitoring or perimeter security.

摘要

近年来，在线制作的光纤布拉格光栅（FBG）阵列及其传感潜力引起了广泛关注。本文中，FBG阵列在双模光纤上在线写入，并对这种双模光纤布拉格光栅（TM-FBG）进行了温度和曲率传感的进一步实验研究。该传感器对温度和曲率的响应分别为11.2 pm/°C和-0.21 dB/m。基于这些测量结果，开发了一种双参数光纤传感系统，该系统可以实现温度和曲率的准分布式、同时检测，使其适用于结构健康监测或周界安全防护。