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13 March 2024 High power conduction-cooled active-mirror laser
Jumpei Ogino, Koji Tsubakimoto, Hidetsugu Yoshida, Shinji Motokoshi, Noboru Morio, Keiko Matsumoto, Kana Fujioka, Shigeki Tokita, Noriaki Miyanaga, Ken-ichi Ueda, Ryousuke Kodama, Akifumi Yogo, Junji Kawanaka
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Proceedings Volume PC12864, Solid State Lasers XXXIII: Technology and Devices; PC128640B (2024) https://doi.org/10.1117/12.3005462
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
The development of high pulse energy and high repetition rate lasers based on Yb:YAG ceramics is expected to achieve high average power in areas not previously achieved by high energy diode pumped solid state lasers (DPSSL). Such lasers are of interest for advanced materials processing, surface treatments such as laser peening, and pumping ultra-intense lasers for compact radiation and particle sources. The choices of gain media, amplifier geometry, thermal management, and extraction architecture are important aspects for development of a scalable high repetition rate and high energy laser system. We are aiming to develop a pulse energy of 100 J, repetition rate of 100 Hz using conductive-cooled Yb:YAG active-mirror amplifier with a liquid-nitrogen cooling. We report on the status of the development our laser.
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Jumpei Ogino, Koji Tsubakimoto, Hidetsugu Yoshida, Shinji Motokoshi, Noboru Morio, Keiko Matsumoto, Kana Fujioka, Shigeki Tokita, Noriaki Miyanaga, Ken-ichi Ueda, Ryousuke Kodama, Akifumi Yogo, and Junji Kawanaka "High power conduction-cooled active-mirror laser", Proc. SPIE PC12864, Solid State Lasers XXXIII: Technology and Devices, PC128640B (13 March 2024); https://doi.org/10.1117/12.3005462
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KEYWORDS
High power lasers
Laser crystals
Cryogenics
Disk lasers
Heatsinks
Laser energy
Laser therapeutics
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