In this work, we will be using the numerical method called Second-Order Split-Step Algorithm (SSM) to study the propagation of Gaussian beam through turbulent atmosphere. Both two-dimensional and the there-dimensional shape of Gaussian profile is investigated under different atmosphere fluctuation conditions. The Modified Von-Karman power spectrum model is used to characterize the atmosphere turbulence conditions. We found the FWHM of Gaussian profile dropped to about 30% of the maximum intensity when the turbulence strength moves from weak and approaches moderate turbulence regime for L ≥ 500m propagating a distance. Then, we started to examine the propagated beam as the atmosphere turbulence increases to strong regime, and we found that the profile starts to lose the Gaussian shape as the fluctuation increases.
Gaussian Beam Propagation Through Turbulent Atmosphere using Second-Order Split-Step Algorithm
2019-07-01
1220582 byte
Conference paper
Electronic Resource
English
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