Optical Review

, Volume 6, Issue 5, pp 439–442 | Cite as

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

  • Cheng Li
  • Deyuan Shen
  • Jie Song
  • Nam Seong Kim
  • Ken-ichi Ueda
LASERS

Abstract

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%.

Key words

solid-state lasers Tm:YAG laser diode-pumped lasers active mirror 

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Copyright information

© The Optical Society of Japan 1999

Authors and Affiliations

  • Cheng Li
    • 1
  • Deyuan Shen
    • 1
  • Jie Song
    • 1
  • Nam Seong Kim
    • 1
  • Ken-ichi Ueda
    • 1
  1. 1.Institute for Laser Science, University of Electro-CommunicationsTokyoJapan

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