| Calculation of the Spatio-Temporal Dynamics of Q-switched Yb^3＋：YAG Laser with an Unstable Cavity and a Super-Gaussian Mirror |
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| 引用本文： | 曹丁象 郑万国 王晓峰 於海武 贺少勃 谭吉春. Calculation of the Spatio-Temporal Dynamics of Q-switched Yb^3＋：YAG Laser with an Unstable Cavity and a Super-Gaussian Mirror[J]. 中国物理快报, 2007, 24(5): 1273-1275 |
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| 作者姓名： | 曹丁象 郑万国 王晓峰 於海武 贺少勃 谭吉春 |
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| 作者单位： | [1]Research Center of Laser Fusion, China Academy of Engineering Physics, PO Box 919-988, Mianyang 621900 [2]College of Optoelectric Science and Engineering, ~Nationa~l University of Defence Technology, Changsha 410073 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10576038. |
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| 摘 要： | A numerical simulation used to compute the spatio-temporal dynamics of pulse formation of diode-pumped Q- switched Yb： YA G laser is carried out. The model takes the laser amplification and gain saturation, the properties of the laser cavity, and the diffractive effects of the laser disc into account. The numerical calculation is performed for a confocal positive-branch unstable resonator with a super Gaussian coupling mirror. The simulation results show that the laser pulse starts from a Gaussian intensity distribution and becomes rapidly non-Gaussian. The corresponding beam quality M^2 factor is seen to vary approximately from 1.5 at the beginning of the formation of pulse to more than 10 in the tail of the pulse, with a value of 11.6 at the peak of the pulse.
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| 关 键 词： | Yb^3＋：YAG 激光 高斯反射 二极管 |
| 收稿时间： | 2006-12-13 |
| 修稿时间： | 2006-12-13 |
Calculation of the Spatio-Temporal Dynamics of Q-switched Yb3+:YAG Laser with an Unstable Cavity and a Super-Gaussian Mirror |
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| CAO Ding-Xiang,ZHENG Wan-Guo,Wang Xiao-Feng,YU Hai-Wu,HEShao-Bo,Tan Ji-Chun. Calculation of the Spatio-Temporal Dynamics of Q-switched Yb3+:YAG Laser with an Unstable Cavity and a Super-Gaussian Mirror[J]. Chinese Physics Letters, 2007, 24(5): 1273-1275 |
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| Authors: | CAO Ding-Xiang ZHENG Wan-Guo Wang Xiao-Feng YU Hai-Wu HEShao-Bo Tan Ji-Chun |
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| Affiliation: | 1Research Center of Laser Fusion, China Academy of Engineering Physics, PO Box 919-988, Mianyang 621900 ; College of Optoelectric Science and Engineering, National University of Defence Technology, Changsha 410073 |
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| Abstract: | A numerical simulation used to compute the spatio-temporal dynamics of pulse formation of diode-pumped Q-switched Yb:YAG laser is carried out. The model takes the laser amplification and gain saturation, the properties of the laser cavity, and the diffractive effects of the laser disc into account. The numerical calculation is performed for a confocal positive-branch unstable resonator with a super Gaussian coupling mirror. The simulation results show that the laser pulse starts from a Gaussian intensity distribution and becomes rapidly non-Gaussian. The corresponding beam quality M2 factor is seen to vary approximately from 1.5 at the beginning of the formation of pulse to more than 10 in the tail of the pulse, with a value of 11.6 at the peak of the pulse. |
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| Keywords: | 42.55.Xi 42.60.Da 42.60.Gd |
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