I have this galvo dpss laser that has 2 fiber coupled 800nm fap coherent ir diode pumps
and outputs 532nm via frequency doubling.
Each ir diode draws when testing laser 1.77V 21A shutter works but does
not output laser beam...
What do you think must check ?
if i replace the pumping diodes with other generic ir same power/wavelegth
will work?
How can i check the pump diodes by unscrewing fiber coupling and check
ir they have optical output with smartphone camera?