Free-space laser propagation: atmospheric effects

Interest in high-data-rate free-space optical (FSO) laser communication systems has grown significantly in recent years because of the advantages offered by FSO systems over radio frequency (RF) systems. Most advantages are simple consequences of the short wavelengths associated with optical waves. However, there are some drawbacks that arise from the shorter wavelengths used in FSO systems. This article presents advantages and disadvantages and its effect.