Abstract: A ray optic model for the propagation of electromagnetic waves at optical frequencies through atmospheric channels with difference turbulence levels is presented. Using this model, the variation of the power at the receiver end, the rise times of the channel, and the amplitude fluctuations have been computed with respect to beam width, channel thickness, and degree of turbulence. It is expected that this mode will have a bearing on the design of ground-to- satellite and satellite-to-ground optical communication links. !8
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