| Large-aperture end-pumped Nd：YAG thin-disk laser directly cooled by liquid |
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| 引用本文： | 李沛霖,柳强,付星,巩马理.Large-aperture end-pumped Nd：YAG thin-disk laser directly cooled by liquid[J].Chinese Optics Letters,2013(4):47-50. |
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| 作者姓名： | 李沛霖 柳强 付星 巩马理 |
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| 作者单位： | Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instrument,Tsinghua University |
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| 基金项目： | supported by the Tsinghua University Initiative Scientific Research Program |
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| 摘 要： | A large-aperture Nd:YAG thin-disk laser directly cooled by liquid is end-pumped by two spatial selforganized laser diode arrays. The pump coupling efficiency reaches as high as 93%. Without any complex pump coupling components, the structure becomes simplified and compact. By optimizing the incident angle of the pump beam, a pump power density of 578 W/cm2 is achieved with a pump uniformity of 5.52%. Up to 1 346-W peak output power with a slope efficiency of 54.9% is obtained when pumping with a long pulse. The near-field pattern of the laser output is uniform.
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| 关 键 词： | Nd YAG激光 端面泵浦 冷却液 大口径 激光二极管阵列 耦合效率 泵浦光束 功率密度 |
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