- cross-posted to:
- noncredibledefense@sh.itjust.works
- cross-posted to:
- noncredibledefense@sh.itjust.works
I posted this OC 8 months ago, today i see this in my YT feed:
https://www.youtube.com/watch?v=m2-p2srIRLI (Ukraine Counters Fibre-Optic Drones with Lasers That Fry the Cables)
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Well done.
I didn’t think fibre optic cable worked like that.
On the case of the real drone, the laser is destroying the cable.
On the OP’s case, yes a laser can interrupt the communication. But the drone needs to keep sending it, or the drone will just continue after it’s gone. On the other hand, you need less power.
But the drone needs to keep sending it, or the drone will just continue after it’s gone.
unless it injects a detonation command
The fibre that’s carried by combat drones is uncoated, so with the right angle it’s possible to inject another signal.
We still don’t know the full story, it was probably a drone flying rounds trying to detect fiber optic and something else cut the cable, there’s no way you’re powering a 5kW laser off a quad
edit: even if it’s tethered, which isn’t a real thing yet
Now try to fit enough batteries to power that laser on a drone lol (spoiler: you can’t)
tethered
ok so the giant battery is in the tank, guess how big a cable would have to be? You’re not putting that on a quad
edit: it’s also impractical as hell to tether drones when most roads get netting installed over them, just saying
edit2: why not just put the laser on the tank? fry the drones around you directly instead of hoping you cut the comms in the fiber optic lines
the tank has a giant gas turbine why do you need a battery
The battery isn’t the issue they were talking about. They meant “so instead of batteries on the quad you’re powering it from the tank.”
guess how big a cable would have to be
I can show you a chunky 500W cable for a pc power supply, would be just as relevant. Look up cables of actual laser power supplies, they’re big and relatively dense, and we’re talking about tethering a quad, it’s not gonna fly well with that dangling.
This man has never heard of ohm’s law
It wouldn’t have to run at full power all the time, just when actively defending against a drone. There are lots of other harder to solve issues.
Ok and? Still needs batteries and cables to withstand peak power, still needs to be tethered somehow, still needs another crew member constantly flying it. Not to mention being this close to combat and to the ground, you better have some insanely good lens protectors or that laser is gonna be out of commission after any shrapnel lodges itself in.
Completely made up idea to counter this made up idea, but if you’re putting it on armor - a 12 gauge turret sounds so much easier. Doesn’t need a shitload of power, can put it onto a generic stand/turret base, targeting is easier and you’re guaranteed to ruin the enemy drone’s life
does it destroy the actual glass cable, or does it get inside and travel along the optic path and burn out the transceiver? burning the glass to breaking point seems like it would take a heck of a lot of energy, so i assumed it was attacking the light sensors at each end of the line, but people keep saying it’s actually breaking the glass.
thats a very good question, let me suggest 2 more options:
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It injects laser into the fiber, coded identical to the command that would be used to detonate the drone.
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It dosent need to fully burn thru the whole fiber, just melt it a tiny bit to increase fiber losses to a point where the connection fails
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