Actually i have measured the output power, several ways actually. I used my coworkers OP-2 photodiode, a LM-45 thermopile and a J-50MB-HE
pyroelectric sensor. $290 is as low as i'm going.
Unfortunately I have to part with my awesome laser to pay for school. I've used it for maybe 5-10 minutes since i bought it, it's practically new. Here are the specifications. It has a Wavelength of 532nm with a power output of 507mW after three to five seconds of warm up (extremely bright, IR...