Typical double-armored submarine fiber cable. Legend: 1) Polyethylene, 2) Mylar tape, 3) Galvanized steel wires, 4) Aluminum water barrier, 5) Polycarbonate, 6) Copper or aluminum tube ...

For all the good subsea fiber brings – blazing fast speeds and low latency – it comes with its own challenges. The thin armored cables span hundreds of miles on the seafloor, where they’re ...