Beam Propagation Simulation of the Turbulence Channels in Free-space Laser Communication

The characteristics of optical atmospheric channels is one of the key parts of the laser communication research.In this paper,first,based on the atmospheric turbulence theory,the influence of turbulence on laser beam propagating through atmospheric channel is introduced.Then we summarize the increasingly important numerical simulation methods of the optical atmospheric channel.The basic formulas as well as several key techniques for the numerical simulation of the turbulent atmospheric channels are provided.Finally,the examples and progress of recent applications of numerical simulation methods in free-space laser communication are introduced.