DPSS in the case of 532nm uses an IR pump diode and a couple of crystals to produce 532nm light.Pretty sure it is a crystal that has an infrared diode pumping through it. So yes it has a diode, but that isn't what produces the 532nm wavelength
For most 520nm lasers, only one "Laser Diode" emitting ~520nm coherent light is required.
You can get an excellent high quality hand held 532nm from JetLasers $179 for 200mW and going to $599 for 800mWand all of those have IR filters built in see: https://www.jetlasers.org/pl-e-pro/10-pl-e-pro-532nm-green-lasers.html#/1-finish-black/26-power_levels-200mw/50-battery-no/52-10x_beam_expander-no/90-ac_adapter-no/49-goggles-noAh, okay, thanks guys. Tried to look it up but it was a bit confusing. I knew 532 lasers were more expensive but didn’t know the exact reasoning. I’ve always been a green guy so I always wanted a nice 532, but those high powered ones are crazy expensive.
520nm isn’t bad but I definitely prefer the color of the 532nm.
Good to see you back rhd :beer:This is remarkable. Are there readily affordable sources for the 488s now? Checked DTRs site and it doesn't look like he has them.
Wow, reps are astronomically huge these days.