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Intensity Fluctuations of Laser Array Beams in Non-Kolmogorov Turbulence
IEEE Journal on Selected Areas in Communications, 2015On-axis intensity fluctuations of laser array beams are evaluated when they are used in a weakly turbulent non-Kolmogorov atmosphere. Our formulation of the scintillation index is based on the Rytov method, which in the limiting case, correctly reduces to the known Gaussian beam scintillation index in weak Kolmogorov turbulence.
Hamza Gercekcioglu, Yahya Baykal
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Adaptive-optics compensation by distributed beacons for non-Kolmogorov turbulence
Applied Optics, 2001In optical propagation through atmospheric turbulence, the performance of compensation with adaptive optics depends on a beacon's spatial distribution. With distributed beacons, the inefficiency of the modal correction, which is defined as the ratio of the anisoplanatic error of the jth mode and the Zernike-coefficient variance, is derived by use of ...
C, Rao, W, Jiang, N, Ling
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Average spreading of a Gaussian beam array in non-Kolmogorov turbulence
Optics Letters, 2010By using the rms beam width as the parameter to characterize the spreading property, the average spreading of Gaussian beam array propagates in non-Kolmogorov turbulence is studied. Numerical examples reveal that the beam width depends on the exponent value alpha, and the beam width in non-Kolmogorov turbulence is different from that in Kolmogorov ...
Pu, Zhou +4 more
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Annular beam scintillations in non-Kolmogorov weak turbulence
Applied Physics B, 2012In a weakly turbulent atmosphere governed by the non-Kolmogorov spectrum, the on-axis scintillation index is formulated and evaluated when the incidence is an annular Gaussian type. When the power law of the non-Kolmogorov spectrum is varied, the scintillation index first increases, and reaches a peak value, then starts to decrease, and eventually ...
H. Gerçekcioğlu, Y. Baykal
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LIDAR systems operating in a non-Kolmogorov turbulent atmosphere
Waves in Random and Complex Media, 2018ABSTRACTIt is well known that in free atmosphere the Kolmogorov power spectrum of the refractive index might not properly describe the actual turbulence behavior.
I. Toselli, F. Wang, O. Korotkova
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Bumps of the wave structure function in non-Kolmogorov turbulence
SPIE Proceedings, 2015The analytical expressions for wave structure function of plane and spherical waves are derived both in the viscous dissipation and inertial range. Due to previously research, there is a discrepancy between theoretical results and the experimental datum in viscous dissipation range. In this paper, only considering the inertial range, taking plane waves
Chunhong Qiao +5 more
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Deep turbulence propagation of a Gaussian-beam wave in anisotropic non-Kolmogorov turbulence
SPIE Proceedings, 2013In the conventional Kolmogorov model of turbulence the turbulent fluctuations of the index of refraction are assumed to be statistically homogeneous and isotropic, and there is a specific mathematical form for the power spectral density of the index of refraction fluctuations.
Andrews, L. C. +3 more
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Propagation Performance of Supercontinuum Source in Non-Kolmogorov Turbulence
Chinese Journal of Lasers, 2014The horizontal propagation characteristics of supercontinuum source in non-Kolmogorov turbulence is investigated.A superposition of narrow-band spectral components is used to simulate supercontinuum.The beam width of supercontinuum source and propagation efficiency are calculated with different inner and outer scales of turbulence and parametersα,as ...
孙海跃 Sun Haiyue +4 more
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FEATURES OF PARAMETERIZATION OF NON-KOLMOGOROV MODELS OF THE TURBULENT SPECTRUM
International Symposium "Atmospheric and Ocean Optics. Atmospheric Physics"Features of taking into account the parameterization of non-Kolmogorov models of the turbulence spectrum of optical media when calculating the parameters of optical systems used in these media. Obtain analytical expressions for calculating fluctuations of the parameters of optical waves during their propagation in a turbulent medium with a non ...
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