Generation of Temporal Low Noise Laser Pulses for Investigating of Laser Peening Process

DOI Web Site Web Site 参考文献21件
  • SUZUKI Masayuki
    Ophthalmology and Advanced Laser Medical Center Faculty of Medicine, Saitama Medical University
  • KIRIYAMA Hiromitsu
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency
  • DAITO Izuru
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency
  • OKADA Hajime
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency
  • OCHI Yoshihiro
  • SATO Masatoshi
    Development Bureau, Hamamatsu Photonics K.K.
  • TAMAOKI Yoshinori
    Industries Development Laboratory Power Laser Development Hamamatsu Photonics K.K.
  • YOSHII Takehiro
    Development Bureau, Hamamatsu Photonics K.K.
  • MAEDA Junya
    Development Bureau, Hamamatsu Photonics K.K.
  • MATSUOKA Shinichi
    Development Bureau, Hamamatsu Photonics K.K.
  • KAN Hirofumi
    Industries Development Laboratory Power Laser Development Hamamatsu Photonics K.K.
  • BOLTON Paul R.
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency
  • SUGIYAMA Akira
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency
  • KONDO Kiminori
    Quantum Beam Science Directorate and Kansai Photon Science Institute, Japan Atomic Energy Agency

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抄録

We have demonstrated an optical parametric chirped pulse amplifi cation (OPCPA)/Yb:YAG ceramic thin disk hybrid laser system having the hundred mJ pulse energy level with sub-picosecond duration and high temporal contrast. At an input chirped-pulse energy of 3.8 mJ from an OPCPA preamplifer an output energy of 130 mJ has been generated from a multipass laser-diode (LD) pumped Yb:YAG ceramic thin disk amplifi er. A recompressed pulse duration of 450 fs with a contrast level of less than 7.2 × 10‒9 at 150 ps before the main pulse has been obtained. The contrast level was the highest value achieved in a Yb:YAG chirped pulse amplifi cation (CPA) laser system at the hundred mJ level. This laser system is well-suited to studying laser matter interactions in the laser peening mechanism.

収録刊行物

  • レーザー研究

    レーザー研究 42 (6), 482-, 2014

    一般社団法人 レーザー学会

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