Originally Posted by
buffo
I'll be damned...
OK, I retract my previous statement. I did not expect this to be a pure-diode laser! But in light of the videos you linked to, it's clear that these are not fiber-fed at all. The umbilical provides cooling water and DC power to the diode block located in the handpiece. So, yes, the diodes themselves must be there.
Looks like they pull a good bit of current though, judging by the size of the wire.
Adam
PS: The medical laser I was referring to was an ND-YAG that used a scanning mirror to sweep the beam side to side for tattoo removal. You could adjust the path width from a dot to a line about 3 inches wide, and when you pulled the trigger it would spin up the galvo and then fire the laser.