Polychromatic laser guide star: it is necessary for tilt correction?

L. A. Bolbasova; V. P. Lukin

doi:10.1117/12.2601796

15 December 2021 Polychromatic laser guide star: it is necessary for tilt correction?

L. A. Bolbasova, V. P. Lukin

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119160K (2021) https://doi.org/10.1117/12.2601796
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

Laser guide stars (LGS) are becoming essential tool for adaptive optics in large ground-based telescopes. We discuss the limitations of LGS, which is the indetermination of the tilt of the incoming wavefront. Because laser guide star is usually formed with a focused laser beam directed from a telescope (from the ground), it is actually a spherical wave with a random center. Taking this into account, the residual distortions of phase fluctuations are calculated. The analytical calculation carried out in the approximation of the Huygens-Fresnel method.

Citation Download Citation

L. A. Bolbasova and V. P. Lukin "Polychromatic laser guide star: it is necessary for tilt correction?", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119160K (15 December 2021); https://doi.org/10.1117/12.2601796

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