This isn't a weapon, and probably won't work as intended either.
"Space lasers" don't work over long distances because the light spreads out. (inverse square law) A pinpoint laser is almost 2m wide when pointed at a low flying aircraft.
Increasing intensity doesn't work because you'll need a) a Dyson sphere level of energy input. or b) a mirror big enough to occupy a significant fraction of our orbit.
This is just "data center in space" fiction

The Iran government are wold-class-bastards and thinking that they're one iota more trustworthy than Washington or Tel Aviv is madness. If they're telling the truth, that's incidental to the truth serving their momentary interest.
If Tehran says water is wet, the sky is blue, or Trump is lying, it's worthwhile to double-check