I have a nice used Melles-Griot DPSS laser for sale.
Model 58-BLD-605 whose current selling price is $28 K US
This produces CW output split into 2 main beams (other small satellite beams seen but can be masked out).
This laser is rated for 400 mW and I have access to factory settings.
I've tweeked the set point to 20 amps and measured 320 mW of nice 457 nM blue using my factory calibrated Ophir DGHH laser power meter.
The maximum limit is 30 amps and I do not suggest running at peak unless your intention is MORE POWER, then damn the torpedos Tim the tool man !....
Asking price is $5,500 US and or cash + trade goods of interest to me.