Fiber sensing
Fiber sensing in research
At sea
Subsea telecom cables are used to detect earthquakes and submarine landslides, monitor ocean currents, waves, and internal tides, track marine life (e.g., whale calls), study icebergs and sea ice movement, support tsunami warning systems, and even help locate illegal fishing vessels or anchor drags, reaching remote ocean areas that traditional sensors rarely cover.
Pilot project:
With fiber sensing, even a hard-to-reach place such as the ocean floor becomes a valuable source of measurement data.
On land
Terrestrial fiber networks support seismic and microseismic monitoring, traffic and pedestrian flow analysis, railway and road condition monitoring, groundwater and glacier studies, and detection of landslides or sinkholes. DTS and DTSS are also used to study temperature change in ecosystems, and structural health of bridges, tunnels, and dams.
Pilot project: