Abstract

A simple sensor system for high spatial resolution distributed strain field measurement is proposed and demonstrated experimentally. The fiber loop ringdown technique combined with a linear chirped fiber Bragg grating is used to realize the high spatial resolution. A proof-of-concept distributed strain sensor with $2\mathrm{mm}$ spatial resolution is realized. The sensor network is also explored and researched experimentally. The proposed technique suggests a broad range of applications for real-time distributed physical parameter sensing, such as strain or temperature.

© 2011 Optical Society of America

Highly sensitive fiber loop ringdown strain sensor using photonic crystal fiber interferometer

Wenjun Zhou, Wei Chang Wong, Chi Chiu Chan, Li-Yang Shao, and Xinyong Dong
Appl. Opt. 50(19) 3087-3092 (2011)

High-sensitivity, high-spatial-resolution distributed strain sensing based on a poly(methyl methacrylate) chirped fiber Bragg grating

Chengang Lyu, Ziqi Liu, Ziqiang Huo, Chunfeng Ge, Xin Cheng, and Haw-Yaw Tam
Photon. Res. 8(7) 1134-1139 (2020)

Real time interrogation technique for fiber Bragg grating enhanced fiber loop ringdown sensors array

Yunlong Zhang, Ruoming Li, Yuechun Shi, Jintao Zhang, Xiangfei Chen, and Shengchun Liu
Opt. Express 23(11) 14245-14251 (2015)

Reflective temperature sensor based on a fiber Bragg grating combined with a fiber loop ringdown technique

Bang Ning Mao, Wen Wei Chen, Chun Liu Zhao, Yan Shi, Chang Yu Shen, and Shang Zhong Jin
Appl. Opt. 59(19) 5693-5696 (2020)

High spatial resolution distributed fiber strain sensor based on phase-OFDR

Jiong Li, Jiulin Gan, Zhishen Zhang, Xiaobo Heng, Changsheng Yang, Qi Qian, Shanhui Xu, and Zhongmin Yang
Opt. Express 25(22) 27913-27922 (2017)