Evolution of the orbital angular momentum flux density of partially coherent vortex beams in atmospheric turbulence

We investigate the behavior of the orbital angular momentum (OAM) flux density of partially coherent vortex (PCV) beams in atmospheric turbulence. It is shown that for PCV beams with different spatial coherence structures, the OAM flux density distribution exhibits rich variations along the propagation path. Our findings provide insight into the use of the OAM in free-space optical communications when turbulence effects are significant.

Automated summary

The behavior of orbital angular momentum (OAM) flux density of partially coherent vortex (PCV) beams in atmospheric turbulence was investigated. Different spatial coherence structures of PCV beams result in rich variations in OAM flux density distribution along the propagation path, providing insight into the use of OAM in free-space optical communications under significant turbulence effects.