Problems of phase compensation under strong intensity and full-aperture tip-tilt correction from LGS

Vladimir P. Lukin

doi:10.1117/12.484558

29 July 2002 Problems of phase compensation under strong intensity and full-aperture tip-tilt correction from LGS

Vladimir P. Lukin

Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484558
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation

Abstract

Modern aspects of adaptive optics are considered. Atmospheric turbulence induces phase distortions of an optical wave which transform into amplitude distortions in the wave cross sections. On a long path intensity fluctuations become so strong that points appear with zero intensity. In such point wave-front distortions are of a spiral structure. Singularity of this type are called wave-front dislocations. Problems of adaptive system development intended for compensation of turbulent distortions are discussed frequently. But still is not clear how the principal characteristics of an adaptive system such a minimum size of element and allowed temporal lag of correction are influenced by intensity fluctuations. Some problems, connected with the development of ground-based adaptive telescope, particularly, with equipping it with an additional optical system for laser guide star formation, are treated in the paper.

Citation Download Citation

Vladimir P. Lukin "Problems of phase compensation under strong intensity and full-aperture tip-tilt correction from LGS", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484558

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available