Version 1
: Received: 20 April 2024 / Approved: 23 April 2024 / Online: 23 April 2024 (18:07:41 CEST)
How to cite:
Thary Khamees, H.; Saloom, H.T. Near Field Propagation of Flat-Top Gaussian Beam: Analysis in Weak Atmospheric Turbulence. Preprints2024, 2024041528. https://doi.org/10.20944/preprints202404.1528.v1
Thary Khamees, H.; Saloom, H.T. Near Field Propagation of Flat-Top Gaussian Beam: Analysis in Weak Atmospheric Turbulence. Preprints 2024, 2024041528. https://doi.org/10.20944/preprints202404.1528.v1
Thary Khamees, H.; Saloom, H.T. Near Field Propagation of Flat-Top Gaussian Beam: Analysis in Weak Atmospheric Turbulence. Preprints2024, 2024041528. https://doi.org/10.20944/preprints202404.1528.v1
APA Style
Thary Khamees, H., & Saloom, H.T. (2024). Near Field Propagation of Flat-Top Gaussian Beam: Analysis in Weak Atmospheric Turbulence. Preprints. https://doi.org/10.20944/preprints202404.1528.v1
Chicago/Turabian Style
Thary Khamees, H. and Hussein Thamir Saloom. 2024 "Near Field Propagation of Flat-Top Gaussian Beam: Analysis in Weak Atmospheric Turbulence" Preprints. https://doi.org/10.20944/preprints202404.1528.v1
Abstract
Optical communications are described and analyzed by shaped beams; we challenge the effects of parameters that impact the profile of a Flat Top Gaussian (FTG) beam. When the laser beam propagates throughout the atmosphere, it can be influenced by different optical phenomena including scattering, absorption, and turbulence due to changes in the scintillation index and the forms of intensity that are displayed in the source and receiver planes. In this project, the FTG laser beam that propagates through a weak turbulent region is numerically investigated using open-source software. This simulation will be performed according to a mathematical model based on the split-step beam propagation method. Intensity distributions at the source plane and the received average intensity in atmospheric turbulence are calculated, and additional contour is in the transducer plane. The scintillation index, structure constant, source size, and other parameters, are applied in the Rytov method to quantify the weak turbulent model. Moreover, these parameters are analyzed in near-field propagation. Also, the effects of the beam’s scintillation and beam wander are determined. All results simulated are discussed and compared with the TEM00 Gaussian beam. Finally, these results are compared to measurements in the experimental part of the work.
Keywords
Weak turbulence; Flat Topped Gaussian (FTG); Near field analysis; Huygens Fresnel Integral
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
