Propagation of Perfect Laguerre Gaussian Beam in a Turbulent Atmosphere
Year: 2026
Type: article
Abstract: Optical communication systems rely on reliable transmission of light through the atmosphere, yet atmospheric turbulence poses a significant challenge by introducing distortions and fluctuations that degrade signal quality. Perfect Laguerre–Gaussian (PLG) beams—a class of structured beams carrying orbital angular momentum (OAM)—offer a promising solution due to their unique phase structures and resistance to turbulence-induced degradation. In this study, we employ the Random Phase Screen (RPS) framework to systematically investigate the propagation characteristics of PLG beams in turbulent atmospheres. Our quantitative analysis compares PLG beams with conventional Gaussian beams under identical turbulence conditions, revealing that PLG beams exhibit lower intensity fluctuations and reduced beam broadening. Furthermore, we examine the influence of topological charge on propagation performance and find that the optimal OAM value for minimizing scintillation depends critically on the strength of turbulence. These results provide practical guidelines for selecting appropriate beam parameters in turbulence-resilient optical communication systems, highlighting PLG beams’ potential to enhance link reliability in real-world atmospheric channels.
Source: Optics
DOI: 10.3390/opt7050069
Authors: Hocine Bekkis, Abdelhamid Chergui
Institution: University Ferhat Abbas of Setif
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,448
OpenAlex ID: W7221762866
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