| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High-Efficiency High-Power Nd:YAG Laser under 885nm Laser Diode Pumping |
| LI Fang-Qin1,3, ZHANG Xiao-Fu1,3, ZONG Nan1,3, YANG Jing2,3, PENG Qin-Jun2, CUI Da-Fu2, XU Zu-Yan1,2 |
| 1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902RCLPT, Key Lab of Functional Crystal and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 1001903Graduate School of the Chinese Academy of Sciences, Beijing 100190 |
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| Cite this article: |
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LI Fang-Qin, ZHANG Xiao-Fu, ZONG Nan et al 2009 Chin. Phys. Lett. 26 114206 |
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Abstract A high-efficiency high-power Nd:YAG laser under 885nm laser diode (LD) pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized. The maximum output power at 1064nm is 87W under the absorbed pump power 127.7W, corresponding to a slope efficiency of 72.4% and an optical-optical efficiency of 68.1%. The optical-optical efficiency is 58.4% for the pump power emitted directly from the LD. To our best knowledge, this is the maximal optical-optical conversion efficiency obtained for the LD end-pumped Nd:YAG lasers so far.
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| Keywords:
42.55.Rz
42.55.Xi
42.60.Pk
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Received: 29 July 2009
Published: 30 October 2009
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| PACS: |
42.55.Rz
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(Doped-insulator lasers and other solid state lasers)
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42.55.Xi
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(Diode-pumped lasers)
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42.60.Pk
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(Continuous operation)
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