Estimation of the Turbulence and Regular Refraction Effects on Laser Beam Parameters in the Atmospheric Boundary Layer: Part 1, Coherence Length and Turbulent Broadening

The coherence length and the degree of broadening of a laser beam under the turbulence effect are estimated from the results of remote acoustic sounding of the atmospheric boundary layer with a Volna-4M sodar. The daily average profile of the coherence length in different seasons is considered. Corr...

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Bibliographic Details
Published in:Atmospheric and oceanic optics 2019, Vol.32 (1), p.19-25
Main Authors: Odintsov, S. L., Gladkikh, V. A., Kamardin, A. P., Mamyshev, V. P., Nevzorova, I. V.
Format: Article
Language:English
Subjects:
Acoustic sounding
Atmospheric boundary layer
Boundary layers
Coherence length
Corrections
Laser beams
Lasers
Length
Optical Devices
Optics
Optics of Stochastically-Heterogeneous Media
Photonics
Physics
Physics and Astronomy
Turbulence
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Summary:The coherence length and the degree of broadening of a laser beam under the turbulence effect are estimated from the results of remote acoustic sounding of the atmospheric boundary layer with a Volna-4M sodar. The daily average profile of the coherence length in different seasons is considered. Corrections to the effective radius of a laser beam due to turbulence and the monthly average values of these corrections are calculated. A noticeable excess of the possible broadening of the laser beam in winter above that in summer was found.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856019010123