Computer simulation and optimization of raster scanning Nd:YAG laser conditioning

The efficiency of Nd:YAG laser raster scanning conditioning of optics was investigated. The existence of intensity and pointing fluctuations of laser beam would lead to descending of laser conditioning efficiency. It was also found that the fluctuation influences were modulated by beam overlap space and raster scan patterns. The effect of laser pulse fluctuations on conditioning efficiency is much less in triangle lattice pattern than that in square lattice pattern. Conditioning procedure could be optimized according to this work.