Comparing with direct diode emission laser device, green laser module employed by 532nm green DPSS laser tech just gets totally different structure design. This green laser device combines laser crystal and nonlinear crystal together, utilizing 808nm wavelength laser diode pumped laser light through crystal (YVO4 crystal), generating 1064nm wavelength. After multiplier effect of nonlinear crystal can produce 532nm green laser. The quite complex structure made 532nm green laser module gets the most sensitive color green laser light, easily absorbed by eyes, making sure of the brightest green laser beam emission in all presentation, industrial inspection and mechanical processing etc.