Study on Beam-shaping Mirrors Based on Gaussian Beam Propagation Theory

Based on the Gaussian beam propagation theory, the phase correcting of five Gaussian beams with different parameters is studied A numerical model including two phase correcting mirrors is established to correct the phase of incident beam. The purpose of these mirrors is to eliminate the astigmatism and ellipticity of the incident Gaussian beams, compensate the phase of the Gaussian beams on the correcting mirror, and obtain the ideal Gaussian beam on the output window. After correcting, the vector correlation coefficient between the output Gaussian beams and the ideal Gaussian beams are above 99.1%.