In many industrial applications, infrared lasers have very good results. However, for the processing of non-ferrous metals, especially copper, the absorption of non-ferrous metals to the laser is very low due to the wavelength of an infrared beam, which brings instability to the operation of the welding process, resulting in welding errors in production and resulting in waste products. For high absorption, blue light with a wavelength of 450nm is the ideal choice.