Results 141 to 150 of about 1,092 (161)

Spectral degrees of cross-polarization of stochastic anisotropic electromagnetic beams in modified non-Kolmogorov atmospheric turbulence

open access: yes, 2013
OPTICA APPLICATA; 04/2013; ISSN 1429 ...
Chen, Feinan   +6 more
openaire   +3 more sources

Effects of inner and outer scale on the modulation transfer function for a Gaussian wave propagating through anisotropic non-Kolmogorov turbulence

Optical Review, 2017
Both experimental results and empirical research have shown that the atmospheric turbulence can present the anisotropic property not only at a few meters above the ground but also at high altitudes of up to several kilometers. This paper investigates the modulation transfer function of a Gaussian beam propagating along a horizontal path in weak ...
Xiaofeng Li
exaly   +2 more sources

Propagation Quality of Laser Diode Beam in Anisotropic Non-Kolmogorov Atmospheric Turbulence

Guangxue Xuebao/Acta Optica Sinica, 2017
李 燕 Li Yan   +2 more
exaly   +2 more sources

Zernike decomposition of refractive atmospheric turbulence in strong, anisotropic, and non-Kolmogorov turbulence

Propagation Through and Characterization of Atmospheric and Oceanic Phenomena, 2016
Zernike polynomials calculations are extended to strong, non-Kolmogorov, and anisotropic turbulence using simulations and approximate analyses. .
R. Holmes, R. Gudimetla, M. Werth
openaire   +1 more source

Influence of asymmetry turbulence cells on the angle of arrival fluctuations of optical waves in anisotropic non-Kolmogorov turbulence

Journal of the Optical Society of America A, 2015
Theoretical and experimental investigations have shown that the atmospheric turbulence exhibits both anisotropic and non-Kolmogorov properties. Very recent analyses of angle of arrival (AOA) fluctuations of an optical wave in anisotropic non-Kolmogorov turbulence have adopted the assumption that the propagation path was in the z-direction with circular
Linyan, Cui, Bindang, Xue
openaire   +2 more sources

Numerical model of turbulence with non-Kolmogorov and anisotropic density spectrum of phase fluctuation

SPIE Proceedings, 2016
The intensity of turbulent distortions in an atmosphere characterized by a structural constant of the refractive index change which is subject to the law of “two – thirds” in model of turbulence Kolmogorov – Obukhov. It is presented the numerical model of atmospheric turbulence, for which the degree of change of the structural constant of the ...
V. V. Lavrinov, L. N. Lavrinova
openaire   +1 more source

Temporal frequency spread of optical wave propagation through anisotropic non-Kolmogorov turbulence

Journal of Optics, 2015
In this paper, we derive new analytic expressions for the atmospheric-induced frequency spread of optical plane and spherical waves propagating in a horizontal path and experiencing anisotropic non-Kolmogorov turbulence. The anisotropic spectrum model is based on the assumption that circular symmetry is maintained in the orthogonal xy-plane throughout ...
Stephen Kotiang, Jaeho Choi
openaire   +1 more source

Propagation of ring Airy Gaussian beams with optical vortices through anisotropic non-Kolmogorov turbulence

Optics Communications, 2017
Abstract A new ring Airy Gaussian (RAiG) vortex beam generation method by coherent combination of Gaussian beam array has been proposed. To validate the feasibility of this method, the propagation properties of the RAiG vortex beam and the coherent combining beam in vacuum have been studied and analyzed.
Dong Zhi   +6 more
openaire   +1 more source

Performance of a free-space optical communication system employing receive diversity techniques in anisotropic atmospheric non-Kolmogorov turbulence

Journal of the Optical Society of America B, 2022
In this paper, bit error rate (BER) performance of a free-space optical communication (FSOC) system operating in anisotropic non-Kolmogorov weak turbulence is investigated together with the spatial diversity techniques. The spatial diversity techniques are implemented as maximum ratio combining (MRC), equal gain combining (EGC), and selection combining
Yalçın Ata   +2 more
openaire   +1 more source

A detailed comparison of non-Kolmogorov and anisotropic optical turbulence theories using wave optics simulations

Laser Communication and Propagation through the Atmosphere and Oceans VII, 2018
In recent years, theoretical studies of optical propagation through turbulence exhibiting statistical anisotropy and a non- Kolmogorov energy spectrum, with a power law unequal to 11/3rds, have appeared regularly in the literature. In this study, we use split-step propagation wave optics simulations, together with FFT-based subharmonic phase screens to
Christopher C. Davis   +2 more
openaire   +1 more source

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