Average capacity optimization in free-space optical communication system over atmospheric turbulence channels with pointing errors

摘要

A model is proposed to study the average capacity optimization in free-space optical (FSO) channels, accounting forneffects of atmospheric turbulence and pointing errors. For a given transmitter laser power, it is shown that bothntransmitter beam divergence angle and beam waist can be tuned to maximize the average capacity. Meanwhile,ntheir optimum values strongly depend on the jitter and operation wavelength. These results can be helpful forndesigning FSO communication systems. © 2010 Optical Society of America