I don’t know the physics, but the power is a lot. The Ford is not the ship tasked with Group defense, but rather the Cruisers and Destroyers.
Power is something like the inverse square rule - the further the distance, the more power needed to achieve a desired effect.
Laser were installed on several ships - not carriers - and are still in testing stages for the prototypes. I think the War Zone has one or more articles on it.
Imagine so yet the ford was built with extraordinary excess power capability