A Design Of The Atmosphere Turbulence Simulator Basic On Liquid Crystal

In the atmosphere laser communication systems, for the effects of laser transmission by atmospheric turbulence and other factors, wave amplitude and phase changing conduced a series of turbulent wave-front distortion effects. In response to the phenomenon, we designed and developed the atmospheric turbulence simulator to simulate the effects of atmospheric turbulence on laser communication systems.The paper mainly analyzed the characteristics of light waves transmitting in the atmospheric turbulence, studied the method of distortion of the phase-screen by numerical simulation of atmospheric turbulence, simulated the turbulent phase screen by power spectrum method and Zernike method separately and compare and analyze, finally considering the parameter of liquid crystal screen, we chose the Zernike method to generate dynamic simulation software. With theoretical verification and analysis, we conclude that the Zernike method could simulate the turbulent phase screen. It accorded the Kolmogrov theory. With the modulation characteristics of liquid crystal affecting on beam and controlling of liquid crystal by computer simulation software, we developed the random atmospheric turbulence simulator, and achieve liquid crystal optical platform instead of laser atmospheric transmission channel.