Non-Kolmogorov atmospheric turbulence and optical signal propagation

Abstract

Abstract.In the present review, we make an attempt to attract attention to the effect of non-Kolmogorov behavior of turbulence in various scales on the characteristics of electromagnetic waves propagation through a turbulent atmosphere on the example of certain atmospheric experiments. We discuss the interpretation of experimental data based on the model of spectral behavior of a passive scalar field within a broad range of scales, which has been developed recently.

The effect of different power spectral densities of refractive index on the propagation of coherently combined beams

“…It should be noted that the expansion of the Bessel function is used in the deviations of Equations (14)- (20). Calculation also shows that the infinite sum in Equations (15)-(17) converges rapidly.…”

“…Further calculation shows that the maximum relative errors for ¼ 1/3, 1/2 and 2/3 are 0.2%, 1.0% and 3.5%, respectively. Therefore, it can be concluded that Equations (13)- (20) not only provide reasonable approximations to study the propagation of combined beam in NOK turbulence, but also provide a much more precise method to study the propagation of a combined beam in OK turbulence.…”

“…Over the past several decades, many experimental data that deviate from the OK theory have been reported [12][13][14][15]; much attention has been given to the propagation and compensation of beams in non-Obukhov-Kolmogorov (NOK) turbulence [16][17][18][19][20][21][22][23][24]. Obviously, the propagation of a combined beam in NOK turbulence needs to be investigated.…”

A quasi-wavelet model for the turbulent refractive index

“…Further developments have shown that this theory constitutes only part of a more general behaviour. In Optics, many experiments, and theoretical studies, have described deviations from it [1][2][3][4][5][6][7]. This introduces the concept of non-Kolmogorov turbulence.…”

Evolution of Beam Quality and Shape of Hermite-Gaussian Beam in Non-Kolmogorov Turbulence

“…Because of the wide area applications of electromagnetic field [1][2][3][4][5], such as in optical communication [1,2], laser remote sensing [3,4] and laser based defense system [5], increasing attention has been paid to the propagation of beam under different conditions in recent years [6][7][8][9][10][11][12][13]. The effects of turbulence on the propagation are one of the important factors.…”