Numerical simulation of Gaussian beam propagation through Kolmogorov phase screen

Elforjani Jera

doi:10.1117/12.2583273

5 March 2021 Numerical simulation of Gaussian beam propagation through Kolmogorov phase screen

Elforjani Jera

Proceedings Volume 11678, Free-Space Laser Communications XXXIII; 1167813 (2021) https://doi.org/10.1117/12.2583273
Event: SPIE LASE, 2021, Online Only

Abstract

In this work, we develop a numerical model to propagate a Gaussian beam through Kolmogorov phase screen under weakmoderate turbulence regime. The numerical method uses the Second-Order Split-Step Algorithm (SSM) to perform the numerical calculations. The Kolmogorov power spectrum model is used to characterize the atmosphere turbulence conditions. The proposed model should also provide the flexibility to enhance the computing accuracy, speed, and memory usage. We found the FWHM of Gaussian profile dropped to about 25% of the maximum intensity of the initial beam, but the shape is not deformed after a propagating through a single-phase screen under weak turbulence regime. On the other hand, when the beam is sent through multiple phase screens and under moderate atmosphere fluctuation, the interference between the beam and the two-phase screen led to a minor deformation of the beam shape and more coherence. The SSM method showed an extremely efficient performance in propagating the beam using Fourier transform and inverse Fourier transform.

Citation Download Citation

Elforjani Jera "Numerical simulation of Gaussian beam propagation through Kolmogorov phase screen", Proc. SPIE 11678, Free-Space Laser Communications XXXIII, 1167813 (5 March 2021); https://doi.org/10.1117/12.2583273

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available