Introduction

This Green laser emit laser beam of 532nm wavelength using DPSS method. DPSS(Diode pumped solid state) method means that it use high power 808nm LD(laser diode) as pumping energy source and it emit green laser through DPM composed of Nd:YVO4,KTP. Moreover, Because Green laser using DPSS method has singular divergence angle,we must make the collimation beam using collimator.

It generates stable output power with external PD(Photo diode) feedback. 532nm Green beam is more visible and bright to the human eye. so, we can use green laser in the system of measurement, positioning, lighting, alignment, guideline, leveling, machine vision etc.