A、  Shallow and slow engraving

The direct reason for deficient laser engraving depth and speed is:  low effective optical power density

The laser processing effects on different materials mainly depend on the optical power density (not power) imposed on...

The laser tube should be reasonably installed. The support point should be at the place of a quarter of the total length of the tube, otherwise the transverse modes of the tube will be problematic. Some times, the transverse will be several points to decrease the laser power and make it fail to...