Laser-beam characterization and measurement of laser-beam parameters including external optics with a fully automated twin hexapod operated beam expander and evaluation of the influence of optical components on beam quality with defined tilts and shifts (Conference Presentation)

2017 ◽  
Author(s):  
Markus Bohrer ◽  
Bernhard Weinberger ◽  
Murad Jamalieh
Keyword(s):  
Laser Beam ◽  
Beam Quality ◽  
Optical Components ◽  
Beam Expander ◽  
Beam Characterization ◽  
Beam Parameters ◽  
And Shifts

On-line control of laser beam quality by means of diffractive optical components

2003 ◽  
Author(s):  
Michael R. Duparre ◽  
Carsten Rockstuhl ◽  
Andreas Letsch ◽  
Siegmund Schroeter ◽  
Vladimir S. Pavelyev
Keyword(s):  
Laser Beam ◽  
Beam Quality ◽  
Optical Components ◽  
On Line ◽  
Laser Beam Quality

Optical components of adaptive systems for improving laser beam quality

2008 ◽  
Author(s):  
Yuri I. Malakhov ◽  
Victor V. Atuchin ◽  
Aleksis V. Kudryashov ◽  
Fedor A. Starikov
Keyword(s):  
Laser Beam ◽  
Adaptive Systems ◽  
Beam Quality ◽  
Optical Components ◽  
Laser Beam Quality

Beam quality measurements using digitized laser beam images

1989 ◽  
Vol 28 (21) ◽  
pp. 4569 ◽  
Author(s):  
Michael D. Duncan ◽  
Rita Mahon
Keyword(s):  
Laser Beam ◽  
Beam Quality ◽  
Quality Measurements

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.

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