Adaptive optics experiments using sodium laser guide stars

1995 ◽  
Vol 439 ◽  
pp. 455 ◽  
Author(s):  
M. Lloyd-Hart ◽  
J. R. P. Angel ◽  
B. Jacobsen ◽  
D. Wittman ◽  
R. Dekany ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Stars ◽  
Laser Guide ◽  
Sodium Laser

The Four-Laser Guide Star Facility: Design considerations and system implementation

2014 ◽  
Vol 3 (3) ◽  
Author(s):  
Domenico Bonaccini Calia ◽  
Wolfgang Hackenberg ◽  
Ronald Holzlöhner ◽  
Steffan Lewis ◽  
Thomas Pfrommer
Keyword(s):  
Adaptive Optics ◽  
Technical Solution ◽  
Laser Guide Star ◽  
Laser Guide Stars ◽  
Very Large Telescope ◽  
Guide Star ◽  
Laser Guide ◽  
Sodium Laser ◽  
Optical Telescopes ◽  
Atmospheric Seeing

AbstractGround-based optical telescopes, in particular large ones, require adaptive optics to overcome the atmospheric seeing limit due to turbulence. Correcting the distorted wavefront necessitates bright stars in the field of view. The sky coverage can be greatly increased by using artificial sodium laser guide stars in addition to natural guide stars. We describe the underlying physics and technical considerations relevant to such systems before discussing the design of the four-laser guide star facility (4LGSF) which is currently under development for the ESO Very Large Telescope (VLT) on Cerro Paranal, Chile. The focus is upon the justification of the requirements and their technical solution.

A high precision phase reconstruction algorithm for multi-laser guide stars adaptive optics

2016 ◽  
Vol 25 (9) ◽  
pp. 094214 ◽  
Author(s):  
Bin He ◽  
Li-Fa Hu ◽  
Da-Yu Li ◽  
Huan-Yu Xu ◽  
Xing-Yun Zhang ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
High Precision ◽  
Reconstruction Algorithm ◽  
Phase Reconstruction ◽  
Laser Guide Stars ◽  
Precision Phase ◽  
Laser Guide

scholarly journals Statistics of the sodium layer parameters at low geographic latitude and its impact on adaptive-optics sodium laser guide star characteristics

2010 ◽  
Vol 511 ◽  
pp. A31 ◽  
Author(s):  
N. Moussaoui ◽  
B. R. Clemesha ◽  
R. Holzlöhner ◽  
D. M. Simonich ◽  
D. Bonaccini Calia ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Star ◽  
Geographic Latitude ◽  
Sodium Layer ◽  
Guide Star ◽  
Laser Guide ◽  
Sodium Laser

Simulations of continuous-wave sodium laser guide stars with polarization modulation at Larmor frequency

2018 ◽  
Author(s):  
Felipe Pedreros Bustos ◽  
Ronald Holzlöhner ◽  
Domenico Bonaccini Calia ◽  
Joschua Hellemeier ◽  
Simon Rochester ◽  
...  
Keyword(s):  
Continuous Wave ◽  
Larmor Frequency ◽  
Polarization Modulation ◽  
Laser Guide Stars ◽  
Laser Guide ◽  
Sodium Laser

Laser guide stars for adaptive optics systems: Rayleigh scattering experiments

1991 ◽  
Author(s):  
Laird A. Thompson ◽  
Richard M. Castle ◽  
David L. Carroll
Keyword(s):  
Adaptive Optics ◽  
Rayleigh Scattering ◽  
Laser Guide Stars ◽  
Laser Guide

Frequency chirped continuous-wave sodium laser guide stars: modeling and optimization

2020 ◽  
Vol 37 (4) ◽  
pp. 1208
Author(s):  
F. Pedreros Bustos ◽  
R. Holzlöhner ◽  
S. Rochester ◽  
D. Bonaccini Calia ◽  
J. Hellemeier ◽  
...  
Keyword(s):  
Continuous Wave ◽  
Laser Guide Stars ◽  
Modeling And Optimization ◽  
Laser Guide ◽  
Sodium Laser
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