Stability of Closed-loop Tomography Algorithms for Adaptive Optics

2005 ◽  
Author(s):  
Donald Gavel
Keyword(s):  
Adaptive Optics ◽  
Closed Loop

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.

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

scholarly journals Adaptive wavefront control algorithms for closed loop adaptive optics

2001 ◽  
Vol 33 (1-3) ◽  
pp. 145-158 ◽  
Author(s):  
B.L. Ellerbroek ◽  
T.A. Rhoadarmer
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Control Algorithms ◽  
Wavefront Control

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

scholarly journals Optimized calibration strategy for high order adaptive optics systems in closed-loop: the slope-oriented Hadamard actuation

2015 ◽  
Vol 23 (21) ◽  
pp. 27134 ◽  
Author(s):  
Serge Meimon ◽  
Cyril Petit ◽  
Thierry Fusco
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
High Order

Novel all-hardware closed-loop adaptive optics system using massively-parallel neural processing

2011 ◽  
Author(s):  
M. Eichhorn ◽  
A. Pichler ◽  
P. Raymond
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Massively Parallel ◽  
Neural Processing ◽  
Adaptive Optics System

High resolution residual wavefront reconstruction for closed-loop adaptive optics systems

2020 ◽  
Author(s):  
Zhilei Ren ◽  
Zhentao Zhang ◽  
Jin Liu ◽  
Yonghui Liang
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Reconstruction

Improvement of closed-loop wavefront correction performance in an adaptive optics system

2020 ◽  
Author(s):  
Yamin Zheng ◽  
Chuang Sun ◽  
Deen Wang ◽  
Lei Huang
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Wavefront Correction ◽  
Adaptive Optics System

Closed-Loop Multiconjugate Adaptive Optics for Microscopy

2020 ◽  
Author(s):  
Richard S. K. Lane ◽  
Karen M. Hampson ◽  
Jiahe Cui ◽  
Matthew Wincott ◽  
Syed Hussain ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Closed Loop
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