1. 253 J at 0.2 Hz, LD pumped cryogenic helium gas cooled Yb:YAG ceramics laser
- Author
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Takashi Sekine, Takashi Kurita, Yuma Hatano, Yuki Muramatsu, Masateru Kurata, Takaaki Morita, Takeshi Watari, Takuto Iguchi, Ryo Yoshimura, Yoshinori Tamaoki, Yasuki Takeuchi, Kazuki Kawai, Yujin Zheng, Yoshinori Kato, Norio Kurita, Toshiyuki Kawashima, Shigeki Tokita, Junji Kawanaka, and Ryosuke Kodama
- Subjects
Atomic and Molecular Physics, and Optics - Abstract
A 253 J with 26 ns at 0.2 Hz laser performance was demonstrated using a LD pumped cryogenically cooled Yb:YAG ceramics laser amplifier. A high energy storage of 344 J was achieved with a stored energy density of 0.58 J/cm3 using a 1 kJ output multidirectional-pumping system. High energy-extraction efficiency of 56.5% was achieved with high energy fluence of 4.63 J /cm2. To the best of our knowledge, this is the highest output energy obtained with a repetitive nanosecond pulse by LD pumped solid-state laser. This paper presented a design of 1 kJ amplifier based on experimentally proven numerical data.
- Published
- 2022