| 几项新技术在“闪光二号”加速器上的应用 |
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| 引用本文： | 王小军.几项新技术在“闪光二号”加速器上的应用[J].强激光与粒子束,2008,20(5):0-709. |
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| 作者姓名： | 王小军 |
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| 作者单位： | 1.清华大学 电机系, 北京 1 00084; |
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| 基金项目： | 中国物理研究院科研项目 |
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| 摘 要： | 为追踪国际上脉冲功率技术的发展方向，在“闪光二号”加速器上开展了水介质形成线并联技术、多级多通道气体开关技术和同步触发技术等研究。经过3维结构下电场分布的模拟计算和绝缘设计，采用3根6 Ω小水线并联组成了2 Ω水介质形成线,研制成功了作为主开关的3 MV多级多通道气体触发开关，并实现了3个多级多通道气体开关的并联运行;采用工作时延446 ns的同步触发系统实现了Marx发生器与主开关的延时同步运行。真空负压下的涡流循环冲刷消除水中气泡技术应用于水介质形成线上，有效消除了并联形成线汇聚结构处的气泡，提高了加速器运行的安全性。经过调试后，加速器重新获得了稳定的运行状态，几项新技术的应用获得成功。
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| 关 键 词： | 强流相对论电子束加速器 水线并联 气体主开关 同步触发 Marx发生器 |
| 收稿时间： | 1900-01-01; |
Optic-thermal coupling in high-power diode pumped solid-state lasers |
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| WANG Xiao-jun.Optic-thermal coupling in high-power diode pumped solid-state lasers[J].High Power Laser and Particle Beams,2008,20(5):0-709. |
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| Authors: | WANG Xiao-jun |
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| Affiliation: | 1.Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;2.Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China |
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| Abstract: | The interaction between the temperature field and the laser field plays a crucial role in solid-state lasers. In this paper, the optic-thermal coupling in the diode pumped solid-state lasers(DPSSL) is investigated. From the point of view of microcosmic physics, the thermal transition of particles at upper laser level makes heat generation of the laser crystals depend on the shape of the laser beam, while the laser field is influenced by the temperature in terms of thermal partition of doped particles. These effects, together with the usual thermal-optic effect of a fluctuation of the refraction index induce by uneven temperature distribution, lead to a complicated coupling between the laser field and the temperature field. It is shown that the optic-thermal coupling plays an important role |
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| Keywords: | Diode pumped solid-state laser Optic-thermal coupling Gain Absorption |
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