Polarization Fluctuation Of Light Beams In Turbulence Channel Of Marine-atmosphere

Optical Wireless Communication is a new kind of communication technology in today's society, it has the excellent confidentiality, lightweight device and large information capacity. Polarization is one of the most important properties of light with a large number of applications, both in the quantum and classical domains. Utilizing property of the information can keep in the Polarization state, the Optical Wireless Communication can come true. Unfavorable, weather and atmosphere turbulence had inevitable consequences for light beams propagating through atmosphere channel,these impacts can cause system instability. Therefore, it is significant theoretically and practically to study polarization properties of light beam propagating through the atmosphere turbulence.In this paper, the Polarization model is developed by extended Huygens-Fresnel integral and Rytov approximation theory, we discuss the Polarization of Gaussian-Schell beams propagating through the anisotropic Kolmogorov and non-Kolmogorov turbulence of marine-atmosphere channel, and compare the difference of Gaussian-Schell beams propagating through marine-atmosphere with terrene-atmosphere channel. The main problem of this paper as follow:1. For the Gaussian-Schell beams propagating through the Kolmogorov turbulence of marine-atmosphere channel, the Polarization decreases as the number of the photons and transverse coherent radius of source's decrease. By compare the difference of Polarization in marine-atmosphere and terrene-atmosphere channel, we can find the turbulence fade in marine-atmosphere channel is larger than terrene-atmosphere channel.2. For the Gaussian-Schell beams propagating through the anisotropic non-Kolmogorov turbulence of marine-atmosphere channel, we find smaller scale eddies can help us get large lateral coherence length of the spherical, and the effect of outer scale on Polarization can be neglect. By the analysis the influence of anisotropic factor, we find higher anisotropy is helpful to the Polarization propagating through the marine/ terrene-atmosphere channels.3. For the Average Polarization of Gaussian-Schell model electromagnetic beams propagating through the anisotropic non-Kolmogorov turbulence of marine/terrene-atmosphere channel are studied based on the cross-spectral density matrix.The average Polarization increases as spectral index increases, and the Gaussian-Schell model electromagnetic beams with the parameters of smaller?_yy,?_xx and A_x, but largerA_y will reduce the interference of turbulence. These results can help us choose and modulate the optimal parameters of light beams to retain the robustness of Polarization as the information carrier in Optical Wireless Communication.