A 12.4 W Ti:sapphire Based Regenerative Amplifier System with 200 fs Pulse Width at 50 kHz Repetition Rate

DOI Web Site 参考文献8件
  • IMAHOKO Tomohiro
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070 School of Integrated Design Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama-shi, 223-8522
  • INOUE Norihiro
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070
  • TAKASAGO Kazuya
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070
  • KAMATA Masanao
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070
  • SUMIYOSHI Tetsumi
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070
  • SEKITA Hitoshi
    Cyber-Laser Inc, Telecom Center Build. East 2F, 2-38, Aomi, Koto-ku, Tokyo, 135-8070
  • OBARA Minoru
    School of Integrated Design Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama-shi, 223-8522

抄録

We have developed a cryogenically cooled Ti:sapphire regenerative amplifier at the repetition rate of up to 100 kHz which was pumped by the intracavity SHG pulses of Yb:YAG thin disk laser. An electro-optic (EO) switching device employing a β-barium borate (β-BBO) crystal was used for pulse extraction from the amplifier resonator. The maximum average amplified power obtained was 21 W under the two pumping pump powers of 70 W at 50 kHz and 75 W at 100 kHz. The amplified pulse was able to be compressed to 200 fs by a grating pair compressor, and the output power was 12.4 W at 50 kHz. The cryogenic cooling system made Ti:sapphire crystal capable to be pumped with over 70 W SHG power in order to keep the stable condition of the regenerative amplifier resonator.

収録刊行物

  • レーザー研究

    レーザー研究 36 (APLS), 1066-1068, 2008

    一般社団法人 レーザー学会

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