Internet Cable Reveals the Source of Underwater Vibrations - Eos

Xiao et al. sent laser pulses through a commercially operated fiber-optic cable linking Valencia, Spain, to Palma on the Mediterranean island of Mallorca. The researchers then measured the small amount of light that bounced back through the cable, a technique called distributed acoustic sensing (DAS). When seismic vibrations disturbed the cable, they changed how the light returned to the source and let the researchers identify the origins of microseisms.

#science #fiber #cable

https://eos.org/research-spotlights/internet-cable-reveals-the-source-of-underwater-vibrations