Development of thermally controlled HALNA DPSSL for inertial fusion energy

Osamu Matsumoto; Ryo Yasuhara; Takashi Kurita; Tadashi Ikegawa; Takashi Sekine; Toshiyuki Kawashima; Junji Kawanaka; Takayoshi Norimatsu; Noriaki Miyanaga; Yasukazu Izawa; Masahiro Nakatsuka; Masahiro Miyamoto; Hirofumi Kan; Hiroyuki Furukawa; Shinji Motokoshi

doi:10.1117/12.645644

23 February 2006 Development of thermally controlled HALNA DPSSL for inertial fusion energy

Osamu Matsumoto, Ryo Yasuhara, Takashi Kurita, Tadashi Ikegawa, Takashi Sekine, Toshiyuki Kawashima, Junji Kawanaka, Takayoshi Norimatsu, Noriaki Miyanaga, Yasukazu Izawa, Masahiro Nakatsuka, Masahiro Miyamoto, Hirofumi Kan, Hiroyuki Furukawa, Shinji Motokoshi

Author Affiliations +

Proceedings Volume 6101, Laser Beam Control and Applications; 61011Q (2006) https://doi.org/10.1117/12.645644
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

We have been developing a high average-power laser system for science and industry applications that can generate an output of 20 J per pulse at 10-Hz operation. Water-cooled Nd:glass zig-zag slab is pumped with 803-nm AlGaAs laser-diode modules. To efficiently extract energy from the laser medium, the laser beam alternately passes through dual zig-zag slab amplifier modules. Twin LD modules equipped on each slab amplifier module pump the laser medium with a peak power density of 2.5 kW/cm². In high power laser system, thermal load in the laser medium causes serious thermal effects. We arranged cladding glasses on the top and bottom of the laser slab to reduce thermal effects.

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Osamu Matsumoto, Ryo Yasuhara, Takashi Kurita, Tadashi Ikegawa, Takashi Sekine, Toshiyuki Kawashima, Junji Kawanaka, Takayoshi Norimatsu, Noriaki Miyanaga, Yasukazu Izawa, Masahiro Nakatsuka, Masahiro Miyamoto, Hirofumi Kan, Hiroyuki Furukawa, and Shinji Motokoshi "Development of thermally controlled HALNA DPSSL for inertial fusion energy", Proc. SPIE 6101, Laser Beam Control and Applications, 61011Q (23 February 2006); https://doi.org/10.1117/12.645644

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