ABSTRACT
In this study, the characteristics of intensity and phase for the ring Airy Gaussian vortex (RAiGV) beam propagation in atmospheric turbulence were numerically simulated, based on the Split-Step Fourier Method (SSFM) and Power Spectrum Inversion Method. Also, the propagation characteristics of the RAiGV beam in the free space were studied. The results obtained showed that at the edge of the phase screen, the interference fringes exist, the phase is distorted and the equiphase line turns into an arc due to the influence of the atmospheric turbulence. Also, it is observed that the smaller the distribution factors is, the greater the change in the intensity and phase wave-front will be, but the fringes interference at the edge of the phase screen is weaker. The results will provide theoretical and technical references for atmospheric optical communication using vortex beams.
