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Proceedings Article

Development of high-average-power DPSSL with high beam quality

[+] Author Affiliations
Sadao Nakai, Tadashi Kanabe, Masanobu Yamanaka, Yasukazu Izawa, Masahiro Nakatuka, Ranganathan Kandasamy

Osaka Univ. (Japan)

Toshiyuki Kawashima, Hirofumi Kan, Teruo Hiruma

Hamamatsu Photonics K.K. (Japan)

Masayuki Niino

National Aerospace Lab. (Japan)

Proc. SPIE 4065, High-Power Laser Ablation III, 29 (August 16, 2000); doi:10.1117/12.407358
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From Conference Volume 4065

  • High-Power Laser Ablation III
  • Claude R. Phipps
  • Santa Fe, NM | April 24, 2000

abstract

The recent progress of high power diode laser is opening new fields of laser and its application. 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 of our High Average-power Laser for Nuclear-fusion Application (HALNA) are large pulse energy with relatively low repetition of few tens Hz, good beam quality of order of diffraction limit and high efficiency more than 10%. We constructed HALNA 10 (10J X 10 Hz) and tested the performance to clarify the scalability to higher power system. We have obtained in a preliminary experiment a 8.5 J output energy at 0.5 Hz with beam quality of 2 times diffraction limited far-field pattern.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Sadao Nakai ; Tadashi Kanabe ; Toshiyuki Kawashima ; Masanobu Yamanaka ; Yasukazu Izawa, et al.
"Development of high-average-power DPSSL with high beam quality", Proc. SPIE 4065, High-Power Laser Ablation III, 29 (August 16, 2000); doi:10.1117/12.407358; http://dx.doi.org/10.1117/12.407358


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