Closed-loop laser beam alignment along active robot arm

1993 ◽  
Author(s):  
Carla C. Neumann ◽  
Felix E. Morgan ◽  
Terry S. Shirrod
Keyword(s):  
Laser Beam ◽  
Closed Loop ◽  
Robot Arm ◽  
Laser Beam Alignment

Automatic laser beam alignment

1990 ◽  
Author(s):  
S. L. Chen ◽  
L. Li ◽  
P. Modern ◽  
W. M. Steen
Keyword(s):  
Laser Beam ◽  
Laser Beam Alignment

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.

Plane mirror based method for laser beam alignment

2016 ◽  
Author(s):  
Yunfeng Lu ◽  
Qing He ◽  
Tao Zeng ◽  
Yang Bai ◽  
Zhonghua Zhang ◽  
...  
Keyword(s):  
Laser Beam ◽  
Plane Mirror ◽  
Laser Beam Alignment

scholarly journals Spectroscopic closed loop control of penetration depth in laser beam welding process

2012 ◽  
Author(s):  
Teresa Sibillano ◽  
Antonio Ancona ◽  
Domenico Rizzi ◽  
Francesco Mezzapesa ◽  
Ali Riza Konuk ◽  
...  
Keyword(s):  
Laser Beam ◽  
Penetration Depth ◽  
Closed Loop ◽  
Laser Beam Welding ◽  
Welding Process ◽  
Closed Loop Control ◽  
Loop Control

Closed-loop adaptive system for laser beam control

2001 ◽  
Author(s):  
Alexis V. Kudryashov ◽  
Alexey L. Rukosuev ◽  
Alexander Alexandrov ◽  
Valentina Y. Zavalova ◽  
Vadim V. Samarkin
Keyword(s):  
Laser Beam ◽  
Closed Loop ◽  
Adaptive System ◽  
Beam Control

Closed loop control for laser beam welding

2006 ◽  
Author(s):  
A. Otto ◽  
R. Hohenstein ◽  
S. Dietrich
Keyword(s):  
Laser Beam ◽  
Closed Loop ◽  
Laser Beam Welding ◽  
Closed Loop Control ◽  
Loop Control
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