Propagation of vortex cosine-hyperbolic-Gaussian beams in atmospheric turbulence

In this paper, the propagation properties of a vortex cosh-Gaussian beam (vChGB) in turbulent atmosphere are investigated. Based on extended Huygens–Fresnel diffraction integral and Rytov method, analytical expression for average intensity vChGB propagating atmospheric turbulence is derived. The effects strength parameters distribution spreading illustrated numerically analyzed detail. It shown that upon propagating, incident keeps its initial hollow dark profile within certain distance, then field loses gradually central hole-intensity transformed into Gaussian-like large distance. rising speed peak demonstrated to be faster when constant or wavelength larger Gaussian width smaller. obtained results can beneficial applications optical communications remote sensing.