In recent years, 532nm green lasers have attracted more and more attention. The laser has a short output wavelength and high processing accuracy. It has a very wide range of applications in the cutting and drilling of ceramic sheets, glass, PCB boards, solar cells and other materials, as well as the pump source of Ti:Sapphire femtosecond green laser pointer systems. A 532nm green laser, comprising a pump unit, a focus coupling system, a laser crystal and a frequency doubling crystal. The pump unit emits pump light to be focused to the laser crystal through the focus coupling system. The laser further includes The output mirror located at the output end of the frequency doubling crystal, the reflecting mirror located between the focusing coupling system and the laser crystal, the focusing coupling system, the reflecting mirror, the laser crystal, the frequency doubling crystal, and the output mirror are located on the main optical axis of the laser, The laser also includes a total mirror located on the optical axis of the laser.
A green laser, characterized in that the high powered laser comprises: a first diode pump laser for emitting a first pump light; a second diode pump laser for emitting a second pump light; A first laser crystal and a second laser crystal that convert the first and second pump lights into a first fundamental frequency light and a second fundamental frequency light, and the wavelength of the first fundamental frequency light is different from the wavelength of the second fundamental frequency light ; Non-linear crystal, used to double the frequency of the first fundamental frequency light and the second fundamental frequency light into the first frequency doubling light and the second frequency doubling light respectively, and the sum frequency of the first fundamental frequency light and the second fundamental frequency light is The sum frequency light, and the first frequency doubled light, the second frequency doubled light and the sum frequency light are respectively green light; and a green light output mirror for outputting each green light emitted by the nonlinear crystal.