Multi-Modal Fiber Sensing for OffshoreEnvironmental and Infrastructure Monitoring

TL;DR

This paper demonstrates multi-modal fiber sensing for offshore environmental and infrastructure monitoring, capturing storm-induced strain with high sensitivity over a 118 km subsea cable.

Contribution

It introduces a multi-modal fiber sensing approach that effectively monitors environmental and infrastructural changes over long distances.

Findings

Captured storm-induced strain up to 0.003 microstrain dynamically and 180 microstrain statically.

Demonstrated consistent modal responses to environmental loading.

Achieved monitoring over a 118 km subsea cable.

Abstract

Monitoring a 118 km subsea cable using Distributed acoustic, state-of-polarization, and Brillouin sensing captured storm-induced strain up to $\approx 0.003 \mu\epsilon$ (dynamic) and $\approx 180 \mu\epsilon$ (static), demonstrating consistent yet distinct modal responses to environmental loading.