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Laser Interferometry of Turbulent Atmosphere

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  • 1 V.E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, Russia
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Abstract

The paper introduces a new laser interferometry–based method for diagnosis of random media by means of high-accuracy angle measurements and describes the results of its development and testing. Theoretical calculations of the dependence of the range of the laser interferometer on laser beam parameters, device geometry, and atmospheric turbulence characteristics are reported. It is demonstrated that at moderate turbulence intensities corresponding to those observed most frequently in turbulent atmosphere at moderate latitudes and with low interference contrast values, the performance range of the laser interferometer–based device exceeds 5 km.

Corresponding author address: Gennady Kaloshin, V.E. Zuev Institute of Atmospheric Optics SB RAS, 1, Academician Zuev Sq., Tomsk 634021, Russia. E-mail: gkaloshin@iao.ru

Abstract

The paper introduces a new laser interferometry–based method for diagnosis of random media by means of high-accuracy angle measurements and describes the results of its development and testing. Theoretical calculations of the dependence of the range of the laser interferometer on laser beam parameters, device geometry, and atmospheric turbulence characteristics are reported. It is demonstrated that at moderate turbulence intensities corresponding to those observed most frequently in turbulent atmosphere at moderate latitudes and with low interference contrast values, the performance range of the laser interferometer–based device exceeds 5 km.

Corresponding author address: Gennady Kaloshin, V.E. Zuev Institute of Atmospheric Optics SB RAS, 1, Academician Zuev Sq., Tomsk 634021, Russia. E-mail: gkaloshin@iao.ru
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