scholarly journals First light for the sodium laser guide star adaptive optics system on the Lijiang 1.8m telescope

2016 ◽  
Vol 16 (12) ◽  
pp. 183 ◽  
Author(s):  
Kai Wei ◽  
Min Li ◽  
Shan-Qiu Chen ◽  
Yong Bo ◽  
Feng Chen ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide ◽  
Sodium Laser ◽  
Adaptive Optics System

scholarly journals Adaptive Optics with a Laser Guide Star - The ALFA system

2001 ◽  
Vol 205 ◽  
pp. 453-454
Author(s):  
T. Ott ◽  
R. Davies ◽  
S. Rabien
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Star ◽  
Trade Off ◽  
Guide Star ◽  
Laser Guide ◽  
Sodium Laser ◽  
Mandatory Use ◽  
Adaptive Optics System ◽  
Calar Alto ◽  
Better Than

All 8-metre class telescopes will be equipped with adaptive optics systems in order to reach their highest angular resolutions. With the additional requirement for maximal sky coverage comes the mandatory use of a laser guide star. ALFA is an adaptive optics system using a sodium laser guide star, which is installed on the 3.5-m telescope at Calar Alto observatory. It has shown that it is possible to reach Strehl ratios better than 20% in the K-band. In this contribution we describe the design of the system, the observational trade-off necessary to use a laser guide star, and the performance that might be expected.

Performance predictions of the GLAS Rayleigh laser guide star adaptive optics system for the 4.2-m William Herschel Telescope

2006 ◽  
Author(s):  
Timothy J. Morris ◽  
Richard W. Wilson ◽  
Richard M. Myers ◽  
Timothy Butterley ◽  
Rene G. M. Rutten ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Star ◽  
Performance Predictions ◽  
Guide Star ◽  
Laser Guide ◽  
William Herschel ◽  
Adaptive Optics System

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

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.

scholarly journals The Performance of the Robo-AO Laser Guide Star Adaptive Optics System at the Kitt Peak 2.1 m Telescope

2017 ◽  
Vol 155 (1) ◽  
pp. 32 ◽  
Author(s):  
Rebecca Jensen-Clem ◽  
Dmitry A. Duev ◽  
Reed Riddle ◽  
Maïssa Salama ◽  
Christoph Baranec ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Guide Star ◽  
Guide Star ◽  
Laser Guide ◽  
Adaptive Optics System
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