| High Power Continuous-Wave and Acousto-Optic Q-Switched Nd：GdVO4 Laser Operated at 912 nm |
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| 引用本文： | 高静,于欣,陈飞,李旭东,张震,于俊华,王月珠.High Power Continuous-Wave and Acousto-Optic Q-Switched Nd：GdVO4 Laser Operated at 912 nm[J].中国物理快报,2008,25(1):119-121. |
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| 作者姓名： | 高静 于欣 陈飞 李旭东 张震 于俊华 王月珠 |
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| 作者单位： | Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001 |
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| 基金项目： | Supported by the Scientific and Technological Project of Heilongjiang Province under Grant No GC06A116, and the Program of Excellent Team in Harbin Institute of Technology. |
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| 摘 要： | We present a high power and efficient operation of the ^4F3/2 → ^4I9/2 transition in Nd：GdVO4 at 912nm. In the cw mode, the maximum output power of 8.6 W is achieved when the incident pump power is 40.3 W, leading to a slope efficiency of 33.3% and an optical-optical efficiency of 21.3%. To the best of our knowledge, this is the highest cw laser power at 912nm obtained with the conventional Nd：GdVO4 crystal. Pulsed operation of 912nm laser has also been realized by inserting a small aeousto-optie （A-O） Q-Switch inside the resonator. As a result, the minimal pulse width of 20ns and the average laser power 1.43 W at the repetition rate of lOkHz are obtained, corresponding to 7.1 kW peak power. We believe that this is the highest laser peak power at 912nm. Furthermore, duration of 65ns has also been acquired when the repetition rate is 100 kHz.
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| 关 键 词： | Nd:GdVO4激光器 高能连续波 声光开关 激光技术 |
| 收稿时间： | 2007-10-12 |
High Power Continuous-Wave and Acousto-Optic Q-Switched Nd:GdVO4 Laser Operated at 912nm |
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| GAO Jing,YU Xin,CHEN Fei,LI Xu-Dong,ZHANG Zhen,YU Jun-Hua,WANG Yue-Zhu.High Power Continuous-Wave and Acousto-Optic Q-Switched Nd:GdVO4 Laser Operated at 912nm[J].Chinese Physics Letters,2008,25(1):119-121. |
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| Authors: | GAO Jing YU Xin CHEN Fei LI Xu-Dong ZHANG Zhen YU Jun-Hua WANG Yue-Zhu |
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| Affiliation: | Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001 |
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| Abstract: | We present a high power and efficient operation of the 4F3/2 to4I9/2 ransition in Nd:GdVO4 at 912nm. In the cw mode, the maximum output power of 8.6W is achieved when the incident pump power is 40.3W, leading to a slope efficiency of 33.3% and an optical-optical efficiency of 21.3%. To the best of our knowledge, this is the highest cw laser power at 912,nm obtained with the conventional Nd:GdVO4 crystal. Pulsed operation of 912nm laser has also been realized by inserting a small acousto-optic (A-O) Q-Switch inside theresonator. As a result, the minimal pulse width of 20ns and the average laser power 1.43W at the repetition rate of 10kHz are obtained, corresponding to 7.1kW peak power. We believe that this is the highest laser peak power at 912nm. Furthermore, duration of 65ns has also been acquired when the repetition rate is 100kHz. |
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| Keywords: | 42 55 Xi 42 60 Gd 42 62 Be 42 60 Pk |
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