TY CONF TI Optical communication system based on vortex Bessel-Gaussian beams KW optical vortex KW Bessel-Gaussian beam KW optical communication system KW atmospheric turbulence KW coherence KW mean intensity JO XVII International conference on pulsed lasers and laser applications – AMPL-2025 AU Lukin, I.P. PY 2025 PB V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences