Driving lasers

I've got a customer asking me for a 1000W RF VHF driver for their laser.

What are cutting lasers like as a load?
Are they resistive 50 ohms or complex?

Are there any spectral purity requirements or can you just drive them with
the RF from the PA with a bit of harmonics (say -20dbc for H2).

PS: I'll post solution to the flathead screw problem as soon as I get it
from my vendor so I can take some photos.

M

 

Suggestion: Copy this also to alt.lasers.

I can't help you here, having only driven laser diodes (including some
pretty fat ones).