A Closed Loop Layer‐oriented Adaptive Optics Test Bed: Applications to Ground‐Layer Adaptive Optics

2007 ◽  
Vol 119 (860) ◽  
pp. 1114-1125 ◽  
Author(s):  
S. E. Egner ◽  
W. Gaessler ◽  
T. M. Herbst ◽  
R. Ragazzoni
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Ground Layer ◽  
Test Bed

Optimal reconstruction for closed-loop ground-layer adaptive optics with elongated spots

2010 ◽  
Vol 27 (11) ◽  
pp. A1 ◽  
Author(s):  
Clémentine Béchet ◽  
Michel Tallon ◽  
Isabelle Tallon-Bosc ◽  
Éric Thiébaut ◽  
Miska Le Louarn ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Ground Layer ◽  
Optimal Reconstruction

scholarly journals Closed-loop ground layer adaptive optics simulations with elongated spots : impact of modeling noise correlations

2010 ◽  
Author(s):  
C. Béchet ◽  
M. Le Louarn ◽  
R. Clare ◽  
M. Tallon ◽  
I. Tallon-Bosc ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Ground Layer

scholarly journals 1178 J, 527 nm near diffraction limited laser based on a complete closed-loop adaptive optics controlled off-axis multi-pass amplification laser system

2021 ◽  
Vol 9 ◽  
Author(s):  
Deen Wang ◽  
Xin Zhang ◽  
Wanjun Dai ◽  
Ying Yang ◽  
Xuewei Deng ◽  
...  
Keyword(s):  
Laser Beam ◽  
Adaptive Optics ◽  
Closed Loop ◽  
Focal Spot ◽  
Beam Quality ◽  
Laser System ◽  
Diffraction Limit ◽  
Kdp Crystal ◽  
Main Amplifier

Abstract A 1178 J near diffraction limited 527 nm laser is realized in a complete closed-loop adaptive optics (AO) controlled off-axis multi-pass amplification laser system. Generated from a fiber laser and amplified by the pre-amplifier and the main amplifier, a 1053 nm laser beam with the energy of 1900 J is obtained and converted into a 527 nm laser beam by a KDP crystal with 62% conversion efficiency, 1178 J and beam quality of 7.93 times the diffraction limit (DL). By using a complete closed-loop AO configuration, the static and dynamic wavefront distortions of the laser system are measured and compensated. After correction, the diameter of the circle enclosing 80% energy is improved remarkably from 7.93DL to 1.29DL. The focal spot is highly concentrated and the 1178 J, 527 nm near diffraction limited laser is achieved.

Ground-layer adaptive optics performance in Antarctica

2004 ◽  
Author(s):  
Tony Travouillon ◽  
Jon S. Lawrence ◽  
Laurent Jolissaint
Keyword(s):  
Adaptive Optics ◽  
Ground Layer

Diffraction-limited upgrade to ARGOS: the LBT's ground-layer adaptive optics system

2010 ◽  
Author(s):  
Michael Hart ◽  
Lorenzo Busoni ◽  
Olivier Durney ◽  
Simone Esposito ◽  
Wolfgang Gässler ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Ground Layer ◽  
Adaptive Optics System

Optimization of adaptive optics correction during observations: algorithms and system parameters identification in closed-loop

2012 ◽  
Author(s):  
Clémentine Béchet ◽  
Michel Tallon ◽  
Éric Thiébaut
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Parameters Identification ◽  
System Parameters

Simulation on Solar Ground-Layer Adaptive Optics System Based on YAO Software

2017 ◽  
Vol 54 (9) ◽  
pp. 090101
Author(s):  
刘思臻 Liu Sizhen ◽  
任德清 Ren Deqing
Keyword(s):  
Adaptive Optics ◽  
Ground Layer ◽  
Adaptive Optics System

scholarly journals Improved Image Quality over 10′ Fields with the ʻImaka Ground-layer Adaptive Optics Experiment

2018 ◽  
Vol 156 (3) ◽  
pp. 100 ◽  
Author(s):  
F. N. Abdurrahman ◽  
J. R. Lu ◽  
M. Chun ◽  
M. W. Service ◽  
O. Lai ◽  
...  
Keyword(s):  
Image Quality ◽  
Adaptive Optics ◽  
Ground Layer
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