| 超短脉冲激光装置波前校正实验研究 |
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| 引用本文： | 谢娜, 王晓东, 胡东霞, 等. 超短脉冲激光装置波前校正实验研究[J]. 强激光与粒子束, 2010, 22(07). |
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| 作者姓名： | 谢娜 王晓东 胡东霞 代万俊 孙立 李庆 郭仪 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心,等离子体物理国家重点实验室, 四川 绵阳 621 900 |
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| 摘 要： | 为了提高光束质量和能量集中度，在SILEX I超强超短脉冲钛宝石激光装置上进行了自适应光学波前校正系统实验研究，研究了波前校正系统对波前畸变、远场焦斑及能量集中度的改善情况。该系统基于相位共轭原理，主要由哈特曼波前传感器、变形镜、电控单元及控制软件等组成。实验结果表明：进行波前校正后，波前峰谷值从1.885 μm下降到0.438 μm，均方根值从0.379 μm下降到0.052 μm；远场焦斑有明显改善；超过峰值通量1/e2的区域的能量与总能量之比为72.4%。
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| 关 键 词： | 激光技术 波前校正 自适应光学系统 超短脉冲激光装置 光束质量 |
Experimental study on wavefront correction in ultra-short laser facility |
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| xie na, wang xiaodong, hu dongxia, et al. Experimental study on wavefront correction in ultra-short laser facility[J]. High Power Laser and Particle Beams, 2010, 22. |
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| Authors: | xie na wang xiaodong hu dongxia dai wanjun sun li li qing guo yi |
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| Affiliation: | 1. National Key Laboratory of Laser Fusion,Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China |
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| Abstract: | To improve beam quality and focusability performance, an adaptive optical system, which is based on the phase-conjugated principle and consists of Hartmann-Shack sensor, deformable mirror, control unit and software, was installed in the SILEX-I laser facility to correct its wavefront aberrations. The wavefront data and far-field focal spots were measured and analyzed. The results show that, the peak-valley value of the wavefront decreases from 1.885 μm to 0.438 μm and the root mean square value reduces from 0.379 μm to 0.052 μm with this adaptive optical system. In addition, the far-field focal spot is improved and the energy in the region where the intensity of each point is greater than 1/e2 of the laser beam peak intensity is 72.4% of the total energy after the wavefront aberrations |
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| Keywords: | laser technology wavefront correction adaptive optical system ultra-short pulse laser facility beam quality |
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