title: High spatial resolution distributed strain sensor based on linear chirped fiber Bragg grating and fiber loop ringdown spectroscopy.
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 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.
authors.affiliation: Shanghai Key Laboratory of All Solid-state Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
authors.forename: Jiulin
authors.initials: J
authors.lastname: Gan
authors.forename: Yunqi
authors.initials: Y
authors.lastname: Hao
authors.forename: Qing
authors.initials: Q
authors.lastname: Ye
authors.forename: Zhengqing
authors.initials: Z
authors.lastname: Pan
authors.forename: Haiwen
authors.initials: H
authors.lastname: Cai
authors.forename: Ronghui
authors.initials: R
authors.lastname: Qu
authors.forename: Zujie
authors.initials: Z
authors.lastname: Fang