Astigmatism and beam quality of high-brightness tapered diode lasers

Author(s):  
Marc T. Kelemen ◽  
Juergen Weber ◽  
Senta Kallenbach ◽  
Christian Pfahler ◽  
Michael Mikulla ◽  
...  
1999 ◽  
Author(s):  
Volker Raab ◽  
Martin Ostermeyer ◽  
Ralf Menzel

2007 ◽  
Vol 22 (22) ◽  
pp. 3912-3924
Author(s):  
SVEN REICHE

Free-Electron Lasers as high-brilliance radiation sources, rely on a high quality of the electron beam driving the FEL process. The amount of energy, transferred from the electrons to the radiation field, and thus the efficiency of the FEL depends on the provided beam parameters. The presentation discusses the impact of various beam parameter and how current designs of FEL injector try to accomplish the demands on the beam quality for reaching saturation.


2006 ◽  
Vol 18 (4) ◽  
pp. 601-603 ◽  
Author(s):  
F. Dittmar ◽  
B. Sumpf ◽  
J. Fricke ◽  
G. Erbert ◽  
G. Trankle
Keyword(s):  

2000 ◽  
Author(s):  
Volker Raab ◽  
Martin Ostermeyer ◽  
Ralf Menzel

2016 ◽  
Author(s):  
M. Winterfeldt ◽  
J. Rieprich ◽  
S. Knigge ◽  
A. Maaßdorf ◽  
M. Hempel ◽  
...  

2010 ◽  
Author(s):  
D. Feise ◽  
G. Blume ◽  
H. Dittrich ◽  
Chr. Kaspari ◽  
K. Paschke ◽  
...  
Keyword(s):  

2021 ◽  
Vol 9 ◽  
Author(s):  
Deen Wang ◽  
Xin Zhang ◽  
Wanjun Dai ◽  
Ying Yang ◽  
Xuewei Deng ◽  
...  

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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