Ultralong 250 km remote sensor system based on a fiber loop mirror interrogated by an optical time-domain reflectometer

Abstract

A $253\mathrm{km}$ ultralong remote displacement sensor system based on a fiber loop mirror interrogated by a commercial optical time-domain reflectometer is proposed and experimentally demonstrated. The use of a fiber loop mirror increases the signal-to-noise ratio, allowing the system to interrogate sensors placed $253\mathrm{km}$ away from the monitoring system without using any optical amplification. The displacement sensor was based on a long period grating spliced inside of the loop mirror, which modifies the mirror reflectivity accordingly to the applied displacement.

© 2011 Optical Society of America

300 km-ultralong Raman fiber lasers using a distributed mirror for sensing applications

Hugo Martins, Manuel B. Marques, and Orlando Frazão
Opt. Express 19(19) 18149-18154 (2011)

Polarization discrimination in a phase-sensitive optical time-domain reflectometer intrusion-sensor system

Juan C. Juarez and Henry F. Taylor
Opt. Lett. 30(24) 3284-3286 (2005)

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)

Fiber-optic magnetic field sensor with an orthoconjugating loop mirror

M. J. Marrone, R. D. Esman, and A. D. Kersey
Opt. Lett. 18(18) 1556-1558 (1993)

Space-frequency analysis with parallel computing in a phase-sensitive optical time-domain reflectometer distributed sensor

Xiaonan Hui, Taihang Ye, Shilie Zheng, Jinhai Zhou, Hao Chi, Xiaofeng Jin, and Xianmin Zhang
Appl. Opt. 53(28) 6586-6590 (2014)