Calculation and analysis of the laser beam field distribution formed by a real optical system

When designing high-quality optical systems, it is necessary to calculate the real field distribution of the output beam. In this work, the solution of this problem by the method of the scalar theory of diffraction is considered. For calculate the diffraction integral and visualize the results, the software package Mathematica (Wolfram Mathematica) is used. Aberration analysis of laser optical systems and simulation in the program Mathematica of the output field distribution showed a significant distortion of the field distribution and deviation of the spatial beam parameters from the ideal one, described by analytic expressions.