A piece of history: an RF excited 20 W CO2 laser by Peter Laakmann, WB6IOM:

• overall view of the laser (73k) and 100 W driver module
• view of the RF Driver Module rear end (80k) with DC input and RF output connectors
• view of the RF Driver operation panel (85k)
• type data for the RF Driver (78k)
• type data for the laser unit (82k)
• notice of caution for this class IV laser product capable of 20 W continuous (93k) 10.5 um infrared output power
• Peter Laakmann was also active on microwave EME, especially 1296 MHz as WB6IOM :-)