Deep penetration welding performance of a high average power, multi-kilowatt peak power carbon dioxide laser

Author(s):  
S. W. C. Scott ◽  
J. D. Strohschein ◽  
H. J. J. Seguin
Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.


2019 ◽  
Vol 11 (4) ◽  
pp. 1-12 ◽  
Author(s):  
Zhe Yin ◽  
Jingui Ma ◽  
Jing Wang ◽  
Peng Yuan ◽  
Guoqiang Xie ◽  
...  

2013 ◽  
Vol 38 (22) ◽  
pp. 4686 ◽  
Author(s):  
A. Malinowski ◽  
P. Gorman ◽  
C. A. Codemard ◽  
F. Ghiringhelli ◽  
A. J. Boyland ◽  
...  

1999 ◽  
Vol 24 (3) ◽  
pp. 163 ◽  
Author(s):  
T. Beddard ◽  
W. Sibbett ◽  
D. T. Reid ◽  
J. Garduno-Mejia ◽  
N. Jamasbi ◽  
...  

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