Optical Review
Print ISSN : 1340-6000
ISSN-L : 1340-6000
Theoretical and Experimental Investigations of Diode-Pumped Tm:YAG Laser in Active Mirror Configuration
Cheng LIDeyuan SHENJie SONGNam Seong KIMKen–ichi UEDA
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JOURNAL FREE ACCESS

1999 Volume 6 Issue 5 Pages 439-442

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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%.
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© 1999 by the Optical Society of Japan
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