The laser has to disable the drone in seconds, though. Wouldn't a laser with sufficient power to do so cause collateral vision damage from the diffused reflection? Think of a drone flying low and fast into a political rally with a crowd. You don't know the intentions of the pilot so it must be disabled immediately. Many people will look up at the source of noise and thus be exposed. I wonder if e.g. a birdshot cannon would actually be safer.
Your own troops would be issued PPE — in this case, laser protective eyewear.
This is already a thing due to the widespread use of laser rangefinders, designators, and the like, as well as the fact that the Chinese have fielded blinding laser weapons.
https://www.rheinmetall.com/en/rheinmetall_ag/press/themen_i...
As they are small, they do not need a lot of energy to be disabled, especially if they are jammed first.