Laser beam phase correction in the adaptive optics system with finite spatial resolution

2021 ◽  
Author(s):  
Michail V. Volkov ◽  
Vladimir A. Bogachev V.A. ◽  
Feodor A. Starikov
Keyword(s):  
Laser Beam ◽  
Adaptive Optics ◽  
Spatial Resolution ◽  
Phase Correction ◽  
Adaptive Optics System

Fast and low noise adaptive optics system for the correction of micro-aberrations of laser beam

2007 ◽  
Author(s):  
S. Avino ◽  
E. Calloni ◽  
R. De Rosa ◽  
L. Di Fiore ◽  
L. Milano ◽  
...  
Keyword(s):  
Laser Beam ◽  
Adaptive Optics ◽  
Low Noise ◽  
Adaptive Optics System

scholarly journals Morphology of z ~ 1 galaxies from deep K-band AO imaging

2006 ◽  
Vol 2 (S235) ◽  
pp. 405-405
Author(s):  
Marc Huertas-Company ◽  
Daniel Rouan ◽  
Geneviève Soucail ◽  
Olivier Le Fèvre ◽  
Lidia Tasca
Keyword(s):  
Adaptive Optics ◽  
Spatial Resolution ◽  
Near Infrared ◽  
High Spatial Resolution ◽  
Integration Time ◽  
Early Type ◽  
Distant Galaxies ◽  
First Time ◽  
Concentration Asymmetry ◽  
Adaptive Optics System

AbstractWe present the results of observations of distant galaxies (z ~ 0.8) at high spatial resolution (~0.1"). We observed 7 fields of 1' × 1' with the NACO Adaptive Optics system (VLT) in Ks (2.2μm) band with typical V ~ 14 guide stars and 3h integration time per field. Observed fields are selected within the COSMOS survey area. We analyze the morphologies by means of B/D (Bulge/Disk) decomposition with GIM2D and CAS (Concentration-Asymmetry) estimators for 79 galaxies with magnitudes between Ks = 17 − 23 and classify them in three main morphological types (Late Type, Early Type and Irregulars). We obtain for the first time an estimate of the distribution of galaxy types at redshift z ~ 1 as measured from the near infrared at high spatial resolution.

scholarly journals High-Power Laser Beam Transfer through Optical Relay Fibers for a Laser Guide Adaptive Optics System

2009 ◽  
Vol 61 (4) ◽  
pp. 763-768
Author(s):  
Meguru Ito ◽  
Yutaka Hayano ◽  
Yoshihiko Saito ◽  
Hideki Takami ◽  
Norihito Saito ◽  
...  
Keyword(s):  
Laser Beam ◽  
Adaptive Optics ◽  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Guide ◽  
Adaptive Optics System

Application of Liquid Crystal Adaptive Optics System on Human Eye Fundus Imaging with High Spatial Resolution

2009 ◽  
Vol 36 (10) ◽  
pp. 2524-2527
Author(s):  
程少园 Cheng Shaoyuan ◽  
胡立发 Hu Lifa ◽  
曹召良 Cao Zhaoliang ◽  
穆全全 Mu Quanquan ◽  
李鹏飞 Li Pengfei ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Human Eye ◽  
Fundus Imaging ◽  
Adaptive Optics System

Development of an adaptive optics system for fast automatic control of laser beam jitters in air

2009 ◽  
Author(s):  
Salvatore Grasso ◽  
Fausto Acernese ◽  
Rocco Romano ◽  
Fabrizio Barone
Keyword(s):  
Laser Beam ◽  
Automatic Control ◽  
Adaptive Optics ◽  
Adaptive Optics System

scholarly journals Adaptive Optics for Reduction of Thermal Blooming Effects by Phase Compensation

2020 ◽  
Author(s):  
Shuyun Wu ◽  
Xi Luo ◽  
Xinyang Li
Keyword(s):  
Adaptive Optics ◽  
Closed Loop ◽  
Phase Correction ◽  
Energy Concentration ◽  
Phase Compensation ◽  
Beam Spot ◽  
Blooming Effect ◽  
Thermal Blooming ◽  
Adaptive Optics System ◽  
Good Agreement

Abstract The use of an AO system for the reduction of thermal blooming effects by phase correction of a 1.064-µm laser was studied. The energy concentration of the beam spot in the far-field increased greatly when the adaptive optics system performed in a closed loop. The phase compensation of the AO system was effective for a Bradley–Hermann distortion number of less than 130. The experimental results were in good agreement with the simulation results. This study provides many physical explanations and important conclusions for using adaptive optics to reduce the thermal blooming effect.

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