scholarly journals High-power Nd3+:glass laser system in KAIST (Sinmyung I)

1997 ◽  
Vol 15 (2) ◽  
pp. 317-324 ◽  
Author(s):  
H.J. Kong ◽  
S.S. Lee ◽  
H.S. Kim ◽  
K.G. Han ◽  
N.S. Kim ◽  
...  
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
High Spatial Frequency ◽  
Diffraction Effect ◽  
Glass Laser ◽  
High Laser ◽  
Amplifier Stage ◽  
Frequency Components ◽  
Laser Beam Quality

A high-power Nd3+:glass laser system has been constructed and tested. This system consists of a master oscillator, a four-pass amplifier for preamplification, and five-stage amplifiers. The system has been demonstrated in excess of 80 J (2 TW) at 40-ps pulse duration. Final laser beam quality was quite good due to the compensation of the polarization distortion in the four-pass preamplifier, the minimization of the diffraction effect by the image relaying, and the elimination of high spatial frequency components by the spatial filtering. This enables us to obtain high laser output power without any severe spatial spiking effects. Gains and spatial profiles of output pulses were measured after each amplifier stage.

scholarly journals Evaluating the Potential of Laser Beam Quality Improvement by Adaptive Optics System

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Kai Han ◽  
Wenda Cui ◽  
Yi Yang ◽  
Fengjie Xi ◽  
Xiao Li ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Intensity ◽  
Beam Quality ◽  
Evaluation Criteria ◽  
High Spatial Frequency ◽  
High Energy ◽  
Improvement Potential ◽  
Frequency Components ◽  
Laser Beam Quality ◽  
Adaptive Optics System

AO (adaptive optics) systems have been extensively used to improve the beam quality in high-energy lasers; however, few studies have focused on how much the beam quality could be improved. A novel evaluation criteria and factor is presented in this paper. The factor, defined as power in ring (PIR), is expressed by distinguishing the low- and high-spatial frequency components in the far-field laser intensity distribution. Beams with different PIR values are generated in our model, and then they are compensated by AO systems. Calculation result shows that the PIR factor could evaluate a laser beam’s improvement potential by an AO system quantitatively.

Picosecond high power terawatt Nd: Glass laser system for laser fusion and X-ray laser research

1976 ◽  
Vol 18 (1) ◽  
pp. 169-170 ◽  
Author(s):  
H. Kuroda ◽  
H. Masuko ◽  
S. Maekawa
Keyword(s):  
High Power ◽  
Laser System ◽  
Laser Fusion ◽  
Glass Laser ◽  
X Ray

Performance characterization of BETA--A unique high power glass laser system

1977 ◽  
Vol 13 (9) ◽  
pp. 863-863
Author(s):  
J. Soures ◽  
J. Bunkenburg ◽  
W. Friedman ◽  
S. Kumpan ◽  
D. Lonobile ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Glass Laser ◽  
Performance Characterization

Research on Nonlinear Degeneration and Compensation of Beam Quality in High Power Laser System

2014 ◽  
Vol 34 (2) ◽  
pp. 0214005
Author(s):  
张鲁薇 Zhang Luwei ◽  
李晓彤 Li Xiaotong ◽  
岑兆丰 Cen Zhaofeng ◽  
阮望超 Ruan Wangchao ◽  
罗红妹 Luo Hongmei
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

High power high beam quality in-band pumping picosecond amplification laser system

2015 ◽  
Vol 27 (6) ◽  
pp. 61001
Author(s):  
毛小洁 Mao Xiaojie ◽  
秘国江 Bi Guojiang ◽  
庞庆生 Pang Qingsheng ◽  
邹跃 Zou Yue ◽  
吕华昌 Lü Huachang
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
High Beam ◽  
High Beam Quality
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