The evolution of the scintillation and topological charge of coherent vortex beams in turbulence is analyzed.
Although such beams typically have inferior scintillation properties when compared with a comparable Gaussian
beam, the topological charge of the vortex beam shows significant stability. The possibility of using such beams
in optical communications is discussed.
"The evolution of vortex beams in atmospheric turbulence", Proc. SPIE 6878, Atmospheric Propagation of Electromagnetic Waves II, 687804 (15 February 2008); doi: 10.1117/12.764550; https://doi.org/10.1117/12.764550