| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High-Power Dual-End-Pumped Actively Q-Switched Ho:YAG Ceramic Laser |
| DUAN Xiao-Ming1**, YUAN Jin-He1, YAO Bao-Quan1, DAI Tong-Yu1, LI Jiang2, PAN Yu-Bai2 |
1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001
2Key Laboratory of Transparent and Opto-functional Advanced Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050
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| Cite this article: |
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DUAN Xiao-Ming, YUAN Jin-He, YAO Bao-Quan et al 2015 Chin. Phys. Lett. 32 104201 |
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Abstract We present a high-power Ho:YAG ceramic laser pumped at 1908 nm. Using a dual-end-pumped structure, the maximum continuous-wave output power of 48 W is obtained, corresponding to a slope efficiency of 70.4% with respect to the absorbed pump power. At actively Q-switched mode, the maximum average output power of 46 W and the minimum pulse width of 21 ns are achieved at a pulse repetition frequency of 20 kHz, corresponding to a peak power of approximately 109.5 kW. In addition, the beam-quality M2 factor is found to be 1.4 at the maximum output power.
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Received: 28 June 2015
Published: 30 October 2015
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| PACS: |
42.55.Rz
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(Doped-insulator lasers and other solid state lasers)
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42.60.Gd
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(Q-switching)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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