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Development of diode‐pumped solid‐state laser HALNA for fusion reactor driver
Author(s) -
Kawashima Toshiyuki,
Kanabe Tadashi,
Matsumoto Osamu,
Yasuhara Ryo,
Furukawa Hiroyuki,
Miyamoto Masahiro,
Sekine Takashi,
Kurita Takashi,
Kan Hirofumi,
Yamanaka Masanobu,
Nakatsuka Masahiro,
Izawa Yasukazu
Publication year - 2006
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20288
Subject(s) - materials science , laser , diode , optics , optoelectronics , inertial confinement fusion , laser diode , energy (signal processing) , fusion power , amplifier , physics , plasma , quantum mechanics , cmos
The diode‐pumped slab laser for inertial fusion energy driver has been demonstrated, which produces the 1053‐nm output energy of 10 J at 10 Hz. The glass slab laser amplifier has been pumped by quasi‐CW 290‐kW AlGaAs laser‐diode arrays at 803 nm. The optical system can compensate for thermal effects by use of zigzag optical propagation, image‐relayed telescope, and 45 ° Faraday rotator. The output energy of 10.6 J at 1 Hz with the optical‐to‐optical conversion efficiency of 19.9% has been successfully obtained. Also, the 10‐Hz operation has been performed with an output energy of 5.1 J. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 155(2): 27–35, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20288