Russian Federation
In this work, we simulated the propagation of laser beams with various transverse intensity distributions in a low-turbulent atmosphere. The turbulent atmosphere was simulated using phase screens calculated based on the fast Fourier transform algorithm taking into account the modified von Karman spectrum. The advantage of Gaussian beams for problems requiring high stability of the intensity distribution and minimal fluctuations, as well as the effectiveness of «top-hat» beams in maintaining peak brightness, are shown numerically.
Fourier transform, laser beam, turbulence
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