| 高效率多程折叠Nd:YVO4激光放大器 |
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| 引用本文： | 陆丹,黄磊,王琦,柳强,巩马理. 高效率多程折叠Nd:YVO4激光放大器[J]. 光学技术, 2007, 33(4): 624-625 |
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| 作者姓名： | 陆丹 黄磊 王琦 柳强 巩马理 |
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| 作者单位： | 清华大学,精密仪器系光子与电子技术研究中心摩擦学国家重点实验室,北京,100084;清华大学,精密仪器系光子与电子技术研究中心摩擦学国家重点实验室,北京,100084;清华大学,精密仪器系光子与电子技术研究中心摩擦学国家重点实验室,北京,100084;清华大学,精密仪器系光子与电子技术研究中心摩擦学国家重点实验室,北京,100084;清华大学,精密仪器系光子与电子技术研究中心摩擦学国家重点实验室,北京,100084 |
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| 摘 要： | 采用具有近共焦、非稳腔特点的多程折叠光路结构,使激光光束多次通过增益介质,实现了高提取效率的激光放大器.实验中在注入22W种子激光的条件下,以43.9%的提取效率得到了63 W的激光输出,斜效率超过52%,激光放大器的输出光束质量从种子激光的M2X=2.08,M2Y=1.92变为M2X=2.84,M2Y=1.79.
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| 关 键 词： | 激光放大器 近共焦 非稳腔 多程折叠光路 Nd:YVO4 |
| 收稿时间： | 2007-03-20 |
High-efficiency multipass Nd: YVO4 laser amplifier |
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| LU Dan,HUANG Lei,WANG Qi,LIU Qiang,Gong Ma-li. High-efficiency multipass Nd: YVO4 laser amplifier[J]. Optical Technique, 2007, 33(4): 624-625 |
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| Authors: | LU Dan HUANG Lei WANG Qi LIU Qiang Gong Ma-li |
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| Abstract: | A Nd∶YVO4 laser amplifier is reported,which is characterized by a near-confocal,unstable multipass structure.The laser beam from oscillator goes through the Nd∶YVO4 several times as designed for high extraction efficiency. Based on a 22 W seed laser input,a 63 W output is obtained with extraction efficiency and slope efficiency being 43.9% and over 52% ,respectively: The M2 factors of output beam quality are measured to exchange 2.84 at X direction and 1.79 at Y direction ,form 2.84 at X direction and 1.79 at Y direction for seed laser. |
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| Keywords: | laser amplifier near-confocal unstable multipass structure Nd∶YVO4 |
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