Beam Quality Evaluation Of A High Power Fast Axial Flow CO 2 -Laser

1989 ◽  
Author(s):  
Peter Muys ◽  
Jan Bastiaensens
Keyword(s):  
High Power ◽  
Quality Evaluation ◽  
Beam Quality ◽  
Axial Flow

scholarly journals Optimized Growth and Laser Application of Yb:LuAG Single-Crystal Fibers by Micro-Pulling-Down Technique

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 78
Author(s):  
Anye Wang ◽  
Jian Zhang ◽  
Shuai Ye ◽  
Xiaofei Ma ◽  
Baiyi Wu ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Power ◽  
Slope Efficiency ◽  
Continuous Wave ◽  
Beam Quality ◽  
Axial Direction ◽  
Optical Quality ◽  
Central Wavelength ◽  
High Power Lasers ◽  
Crystal Fibers

Single-crystal fibers (SCFs) have a great application potential in high-power lasers due to their excellent performance. In this work, high-quality and crack-free Yb3+:Lu3Al5O12 (Yb:LuAG) SCFs were successfully fabricated by the micro-pulling-down (μ-PD) technology. Based on the laser micrometer and the X-ray Laue diffraction results, these Yb:LuAG SCFs have a less than 5% diameter fluctuation and good crystallinity along the axial direction. More importantly, the distribution of Yb ions is proved to be uniform by electron probe microanalysis (EPMA) and the scanning electron microscope (SEM). In the laser experiment, the continuous-wave (CW) output power using a 1 mm diameter Yb:LuAG single-crystal fiber is determined to be 1.96 W, at the central wavelength of 1047 nm, corresponding to a slope efficiency of 13.55%. Meanwhile, by applying a 3 mm diameter Yb:LuAG SCF, we obtain a 4.7 W CW laser output at 1049 nm with the slope efficiency of 22.17%. The beam quality factor M2 is less than 1.1 in both conditions, indicating a good optical quality of the grown fiber. Our results show that the Yb:LuAG SCF is a potential solid-state laser gain medium for 1 μm high-power lasers.

Experimental Investigation of Limits to Slow Axis Beam Quality in High Power Broad Area Diode Lasers

2014 ◽  
Author(s):  
M. Winterfeldt ◽  
P. Crump ◽  
H. Wenzel ◽  
G. Erbert ◽  
G. Trankle
Keyword(s):  
Experimental Investigation ◽  
High Power ◽  
Beam Quality ◽  
Diode Lasers ◽  
Broad Area ◽  
Slow Axis

Improving the beam quality of high-power laser diodes by introducing lateral periodicity into waveguides

2013 ◽  
Author(s):  
Grzegorz Sobczak ◽  
Elżbieta Dąbrowska ◽  
Marian Teodorczyk ◽  
Joanna Kalbarczyk ◽  
Andrzej Maląg
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser Diodes ◽  
High Power Laser ◽  
Power Laser

Influence of mirror edge effects on the beam quality of high power fast flow lasers

2007 ◽  
Author(s):  
P. V. Korolenko ◽  
N. E. Sarkarov ◽  
S. P. Pavlov ◽  
A. V. Rodin ◽  
A. M. Zotov
Keyword(s):  
Edge Effects ◽  
High Power ◽  
Beam Quality ◽  
Fast Flow

High-power picosecond regenerative amplifier based on CW diode side-pumped Nd:YAG with high beam quality

2011 ◽  
Vol 9 (8) ◽  
pp. 081404-81406 ◽  
Author(s):  
林华 Hua Lin ◽  
李进峰 Jinfeng Li ◽  
何晋平 Jinping He ◽  
梁晓燕 Xiaoyan Liang
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Regenerative Amplifier ◽  
High Beam ◽  
High Beam Quality
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