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Proceedings Paper

High-power DPSSL for laser fusion and its application to industry
Author(s): Sadao Nakai; Tadashi Kanabe; Toshiyuki Kawashima; Masanobu Yamanaka; Yasukazu Izawa; Masahiro Nakatuka; Ranganathan Kandasamy; Hirofumi Kan; Teruo Hiruma; Masayuki Niino
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Paper Abstract

We are developing high average power diode pumped solid state laser DPSSL for laser fusion power plant, for space propulsion and for various applications in industry. The common features or requirements ofour High Average-power Laser for Nuclear-fusion Application (HALNA) are large pulse energy with relatively low repetition of few tens Hz, good beam quality oforder of diffraction limit and high efficiency more than 10%. We constructed HALNA 10 (10J X 10Hz) and tested the performance to clarify the scalability to higher power system. We have obtained in a preliminary experiment a 8.5J output energy at 0.5Hz with bean quality of2 times diffraction limited far-field pattern. We are also trying to extend the laser technology of high peak power with low repetition to that of high averge power laser with high repetition or CW operation. The progress of power laser technology is now opening new fields of applications in science and industry. The flexibility and variety ofperformance are needed.

Paper Details

Date Published: 25 January 2001
PDF: 7 pages
Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); doi: 10.1117/12.414043
Show Author Affiliations
Sadao Nakai, Osaka Univ. (Japan)
Tadashi Kanabe, Osaka Univ. (Japan)
Toshiyuki Kawashima, Hamamatsu Photonics KK (Japan)
Masanobu Yamanaka, Osaka Univ. (Japan)
Yasukazu Izawa, Osaka Univ. (Japan)
Masahiro Nakatuka, Osaka Univ. (Japan)
Ranganathan Kandasamy, Osaka Univ. (Japan)
Hirofumi Kan, Hamamatsu Photonics KK (Japan)
Teruo Hiruma, Hamamatsu Photonics KK (Japan)
Masayuki Niino, National Aerospace Lab. (Japan)

Published in SPIE Proceedings Vol. 4184:
XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Antonio Lapucci; Marco Ciofini, Editor(s)

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