Development of Scale-Down Laser (Class of 10 J & 10 Hz) for Inertial Fusion Reactor

• KANABE Tadashi

  University of Fukui, Graduate School of Engineering

• KAWASHIMA Toshiyuki

  Hamamatsu Photonics K. K.

• KURITA Takashi

  Hamamatsu Photonics K. K.

• MATSUMOTO Osamu

  Hamamatsu Photonics K. K.

• YASUHARA Ryo

  Hamamatsu Photonics K. K.

• SEKINE Takashi

  Hamamatsu Photonics K. K.

• IKEGAWA Tadashi

  Hamamatsu Photonics K. K.

• MIYAMOTO Masahiro

  Hamamatsu Photonics K. K.

• KAN Hirofumi

  Hamamatsu Photonics K. K.

• KAWANAKA Junji

  Institute of Laser Engineering, Osaka University

• NAKATSUKA Masahiro

  Institute of Laser Engineering, Osaka University

• IZAWA Yasukazu

  Institute of Laser Engineering, Osaka University

Bibliographic Information

Other Title

• 核融合炉用スケールダウンレーザー (10J・10Hz級) の開発研究
• カク ユウゴウロヨウ スケールダウンレーザー 10J 10Hzキュウ ノ カイハツ ケンキュウ

Abstract

A diode-pumped solid-state laser (DPSSL) 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 is pumped by quasi-continuous wave 290-kW AlGaAs laser-diode arrays at 803 nm. The optical system enable to compensate for thermal effects by use of zig-zag optical propagation, image-relayed telescope, and 45 degree Faraday rotator. The output energy of 8.4 J at 10 Hz with the optical to optical conversion efficiency of 15.8 % has been successfully obtained, collecting within a 4.4 times diffraction limited area. The results indicate that the DPSSL technology is promising for realizing rep. rate, high average power as well as high energy scaling.

Journal

• The Review of Laser Engineering

  The Review of Laser Engineering 34 (9), 652-656, 2006

  The Laser Society of Japan

Keywords

• Laser diode
• Diode-pumped solid-state laser
• Zig-zag slab laser
• Inertial fusion energy

Details

• CRID: 1390282679624188672
• NII Article ID: 10018250483
• NII Book ID: AN00255326
• DOI: 10.2184/lsj.34.652
• COI: 1:CAS:528:DC%2BD28XhtFSktrvJ
• ISSN: 13496603
• ISSN: 03870200
• NDL BIB ID: 8515054
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8515054
• Web Site: https://www.jstage.jst.go.jp/article/lsj/34/9/34_652/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed