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10 October 2020 Numerical investigation of hybrid pumped picosecond CO2 amplifier
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Abstract
As a mid-infrared laser with large magnification and high beam quality, carbon dioxide lasers are often used as intermediate amplifiers in picosecond terawatt laser systems. With the combination of gas discharge and optical pump, the gain spectrum in 10μm can be greatly improved. In this paper, a numerical model is set up to describe the laser amplification and kinetic processes, based on six-temperature level structure, in hybrid pump CO2 laser amplifier system. The influences of the pump power and its amplification results compared with conventional CO2 laser are simulated and discussed. Such a hybrid pump CO2 laser amplifier is very promising in improving output pulse quality by reducing the pulse split.
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Xiang Li, Yuyan Song, Ran Xia, Cong Hu, Yingxiong Qin, and Xiahui Tang "Numerical investigation of hybrid pumped picosecond CO2 amplifier", Proc. SPIE 11546, Advanced Laser Processing and Manufacturing IV, 115460G (10 October 2020); https://doi.org/10.1117/12.2572829
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