MATA FLORES , Daniel

Oceans are in the middle of a technological dichotomy: they are poorly explored and studied due to the lack of dedicated instrumentation and, yet, they are traversed by a complex network of fiber optic cables mostly used for telecommunications. Recently, a photonic-based technique known as Distributed Acoustic Sensing (DAS) has demonstrated...

Distributed Acoustic Sensing (DAS) enables the use of existing underwater telecommunication cables as multi-sensor arrays, allowing for detailed study of the seismic wavefield. Since underwater telecommunication cables were not deployed for seismological investigations, the coupling between the cable and the seafloor varies, dramatically...

Underwater fiber optic cables commonly traverse a variety of seafloor conditions, which leads to an uneven mechanical coupling between the cable and the ocean bottom. On rough seafloor bathymetry, some cable portions might be suspended and thus susceptible to vortex-induced vibrations (VIV) driven by deep ocean currents. Here, we examine the...