Based on this new mathematical model, the extra narrow beams collimator is designed, the output facula is simulated and the energy utilization ratio is calculated.

The application of the narrow laser beam in making hologram;

By use of the inverse transfer algorithm to calculate the phase distribution of an appropriate compensative phase, it is found that the reduction of the divergence of the laser beam beyond the diffraction limits and its power density of the diffraction central spot in the far field after reduction doesn t clearly decrease.

Evaluation and applied analysis of laser beam quality;

The research on a upward automatic vertical equipment of laser beam;

Measuring the pointing stability of laser beam;