scholarly journals Analysis of beam wander effects for a horizontal-path propagating Gaussian-beam wave: focused beam case

2007 ◽  
Vol 46 (8) ◽  
pp. 086002 ◽  
Author(s):  
Larry C. Andrews
Keyword(s):  
Gaussian Beam ◽  
Beam Wave ◽  
Horizontal Path ◽  
Focused Beam

Pointing errors effect on fiber coupling efficiency for Gaussian-beam wave through atmospheric turbulence channel in FSO links

2019 ◽  
Vol 435 ◽  
pp. 183-189 ◽  
Author(s):  
Gaoyuan Lu ◽  
Jing Ma ◽  
Chao Zhai ◽  
Siyuan Yu ◽  
Liying Tan ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Atmospheric Turbulence ◽  
Coupling Efficiency ◽  
Beam Wave ◽  
Fiber Coupling ◽  
Pointing Errors

scholarly journals Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence

2020 ◽  
Vol 10 (16) ◽  
pp. 5484
Author(s):  
Bing Guan ◽  
Haiyang Yu ◽  
Wei Song ◽  
Jaeho Choi
Keyword(s):  
Structure Function ◽  
Gaussian Beam ◽  
Atmospheric Turbulence ◽  
Isotropic Turbulence ◽  
Imaging System ◽  
Wave Structure ◽  
Modulation Transfer ◽  
Horizontal Path ◽  
Kolmogorov Turbulence ◽  
Waves Propagation

The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric non-Kolmogorov spectrum, the new analytic expression of WSF for Gaussian-beam waves propagation through turbulent atmosphere in a horizontal path is derived. Moreover, using this newly derived expression, long-exposure MTF for Gaussian-beam waves is obtained for analyzing the degrading effects in an imaging system. Using the new expressions, WSF and MTF for Gaussian-beam waves propagating in terrestrial and maritime atmospheric turbulence are evaluated. The simulation results show that Gaussian-beam waves propagation through maritime turbulence obtain more degrading effects than terrestrial turbulence due to the humidity and temperature fluctuations. Additionally, the degrading effects under anisotropic turbulence get less loss than that of isotropic turbulence.

scholarly journals Spiral spectrum of a Laguerre-Gaussian beam propagating in anisotropic non-Kolmogorov turbulent atmosphere along horizontal path

2019 ◽  
Vol 27 (18) ◽  
pp. 25342 ◽  
Author(s):  
Jun Zeng ◽  
Xianlong Liu ◽  
Chengliang Zhao ◽  
Fei Wang ◽  
Greg Gbur ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Turbulent Atmosphere ◽  
Horizontal Path
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