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Proceedings Paper

Laser guide stars and models of atmospheric turbulence
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Paper Abstract

The image quality is analyzed of an extraterrestrial object formed by astronomical optical system through the turbulent atmosphere. Relative increase the Strehl parameter is calculated under adaptive correction based on the laser guide star technique. The efficiency of adaptive correction of distortions for different type of the guide sources is compared. The calculations are performed for different models of the vertical variations of the structural parameter of the refractive index of the turbulent atmosphere. For a set of guide stars application the higher correction and big increase of the Strehl parameter are obtained, that is indirect evidence of the good correction of the higher mode components, which are badly corrected using the traditional techniques. As comparative calculations for different models of vertical variations of the structural parameter of the refractive index have shown, there are serious differences in the behaviors of the correlation radii for the plane and spherical waves.

Paper Details

Date Published: 9 October 2008
PDF: 10 pages
Proc. SPIE 7108, Optics in Atmospheric Propagation and Adaptive Systems XI, 71080H (9 October 2008); doi: 10.1117/12.800585
Show Author Affiliations
L. A. Bol'basova, Tomsk State Univ. (Russian Federation)
V. P. Lukin, Tomsk State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 7108:
Optics in Atmospheric Propagation and Adaptive Systems XI
Anton Kohnle; Karin Stein; John D. Gonglewski, Editor(s)

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