Re: Sharks with Lasers!
Sharks seek out the electric field associated with the undersea telecom cables and do attack them, one reason why the cables are armoured!
The +/- (plus at one end, minus at the other) power feed into the cables is used for powering the laser amplifiers, domestic fridge sized boxes under the Atlantic, some trials of laser pumped erbium doped fibre optics waveguides were carried out, where the soliton pulses were able to cross the ocean without degrading the pulse, hence not needing the amplifiers, hence potentially avoiding the hungry sharks!
Biting the hand that feeds IT
