Speaking of lasers, I came across
this
Its an 808 NM IR laserdiode array in a dounut, with a power output of, wait for it, 5 KILOWATTS, and you can stack them together like
this
With liquid cooling it has a 100% duty cycle.
I found this site because someone was selling one of their "smaller" units rated at a "paltry" 100 watts! for just $499 new.
Scott