Comparison of analytical and numerical estimations of laser beam spreading in a turbulent atmosphere

2019 ◽  
Author(s):  
Petr A. Konyaev ◽  
Feodor Kanev
Keyword(s):  
Laser Beam ◽  
Turbulent Atmosphere ◽  
Beam Spreading ◽  
Numerical Estimations

Expansion of a Focused Laser Beam in the Turbulent Atmosphere

1971 ◽  
Vol 49 (10) ◽  
pp. 1233-1248 ◽  
Author(s):  
A. D. Varvatsis ◽  
M. I. Sancer
Keyword(s):  
Laser Beam ◽  
Free Space ◽  
Turbulent Atmosphere ◽  
Focal Plane ◽  
Spot Size ◽  
Small Aperture ◽  
Forward Scatter ◽  
Green’S Theorem ◽  
Focused Beams ◽  
Weakly Dependent

This work examines the expansion of a focused laser beam in the turbulent atmosphere. The formulation is based on Green's theorem and the valid assumption that the turbulent atmosphere is a forward-scatter medium for wavelengths of interest (0.6 μ < λ < 11 μ). The main results are: (1) the spot size at the free-space focal plane in the presence of turbulence is independent of the aperture radius, and is only weakly dependent on the wavelength, (2) the focal plane can be significantly shifted for small aperture radii, short wavelengths, and long free-space focal lengths, (3) the effect of the atmosphere is pronounced only close to the free-space focus and very far away, and (4) the turbulent atmosphere has a stronger effect on weakly focused beams rather than strongly focused beams, except very close to the free-space focus, where the effect is more pronounced for strongly focused beams.

scholarly journals Studies on propagation of laser beam array with initial phase distributions in a turbulent atmosphere

2009 ◽  
Vol 58 (7) ◽  
pp. 5098
Author(s):  
Zheng Wei-Wei ◽  
Wang Li-Qin ◽  
Xu Jing-Ping ◽  
Wang Li-Gang
Keyword(s):  
Laser Beam ◽  
Turbulent Atmosphere ◽  
Initial Phase ◽  
Beam Array

Laser beam propagation through the turbulent atmosphere with precipitation

1988 ◽  
Vol 27 (17) ◽  
pp. 3704 ◽  
Author(s):  
A. G. Borovoy ◽  
G. Ya. Patrushev ◽  
A. I. Petrov
Keyword(s):  
Laser Beam ◽  
Turbulent Atmosphere ◽  
Beam Propagation ◽  
Laser Beam Propagation
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