Theoretical and Experimental Investigations of Diode-Pumped Tm:YAG Laser in Active Mirror Configuration

  • LI Cheng
    Institute for Laser Science, University of Electro–Communications, 1–5–1, Chofugaoka, Chofu, Tokyo, 182–8585 Japan
  • SHEN Deyuan
    Institute for Laser Science, University of Electro–Communications, 1–5–1, Chofugaoka, Chofu, Tokyo, 182–8585 Japan
  • SONG Jie
    Institute for Laser Science, University of Electro–Communications, 1–5–1, Chofugaoka, Chofu, Tokyo, 182–8585 Japan
  • KIM Nam Seong
    Institute for Laser Science, University of Electro–Communications, 1–5–1, Chofugaoka, Chofu, Tokyo, 182–8585 Japan
  • UEDA Ken–ichi
    Institute for Laser Science, University of Electro–Communications, 1–5–1, Chofugaoka, Chofu, Tokyo, 182–8585 Japan

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説明

Based on the rate-equations of quasi-three-level lasers, we analyzed the threshold and the output power of longitudinally pumped Tm:YAG lasers in an active mirror configuration. In contrast to one-pass pumping, two-pass pumping in this configuration will result in a 24% decrease in threshold and 16% increase in slope efficiency. Using a 3-W diode-laser pumping in the active mirror configuration, we demonstrated a CW Tm:YAG laser and obtained 735 mW output power with a slope efficiency up to 49%. Using a Ti:sapphire laser to pump the same device, the threshold power was further reduced and the slope efficiency reached 59%.

収録刊行物

  • Optical Review

    Optical Review 6 (5), 439-442, 1999

    公益社団法人 応用物理学会分科会 日本光学会

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