Abstract

A novel subsea cable condition monitoring technique based on embedded optical fiber inside the cable is demonstrated. It is shown that a distributed optical fiber vibration sensor can be used to map dynamic strains all along the cable simultaneously. It is experimentally shown that such system can fully quantify the location and strain level at each point on the cable as a function of time for both abrupt impact and cyclical loading. The sensing system demonstrated a spatial and strain resolution of 1 m and $4\, \mu \varepsilon$ , respectively, over a 10-km sensing range.

© 2019 IEEE

Research on distributed strain monitoring of a bridge based on a strained optical cable with weak fiber Bragg grating array

Lina Yue, Qing Wang, Fang Liu, Qiuming Nan, Guanghui He, and Sheng Li
Opt. Express 32(7) 11693-11714 (2024)

Distributed optical fiber vibration sensor based on Sagnac interference in conjunction with OTDR

Chao Pan, Xiaorui Liu, Hui Zhu, Xuekang Shan, and Xiaohan Sun
Opt. Express 25(17) 20056-20070 (2017)

100-km-sensing-range single-ended distributed vibration sensor based on remotely pumped Erbium-doped fiber amplifier

Lieke D. van Putten, Ali Masoudi, and Gilberto Brambilla
Opt. Lett. 44(24) 5925-5928 (2019)

Distributed fiber sensor network using telecom cables as sensing media: technology advancements and applications [Invited]

Ezra Ip, Jian Fang, Yaowen Li, Qiang Wang, Ming-Fang Huang, Milad Salemi, and Yue-Kai Huang
J. Opt. Commun. Netw. 14(1) A61-A68 (2022)

Measurement of distributed strain due to laying and recovery of submarine optical fiber cable

Toshio Kurashima, Tsuneo Horiguchi, Nobuyuki Yoshizawa, Hidenobu Tada, and Mitsuhiro Tateda
Appl. Opt. 30(3) 334-337 (1991)