Simmons W W, Speck D R, Hunt J T
Appl Opt. 1978 Apr 1;17(7):999-1005. doi: 10.1364/AO.17.000999.
The Argus Nd:glass laser system, presently operating as an experimental facility for laser fusion experiments, is described. The laser consists of a master oscillator and two identical amplifier chains, each of 20-cm output aperture. Argus is presently capable of delivering more than 4 TW of power in short (<100-psec) pulses, or more than 2 kJ of energy in 1-nsec pulses, to 100-microm targets. Short pulse performance enhancement obtained by increased aperture filling and implementation of image relaying with high power vacuum spatial filters is described. Experimentally recorded near-field and far-field data for several power levels are presented and discussed in terms of the limiting effects of nonlinear beam instabilities upon focal spot intensity.
介绍了目前作为激光聚变实验的实验设施运行的阿格斯钕玻璃激光系统。该激光器由一个主振荡器和两个相同的放大器链组成,每个放大器链的输出孔径为20厘米。阿格斯目前能够在短(<100皮秒)脉冲中提供超过4太瓦的功率,或在1纳秒脉冲中向100微米的靶标提供超过2千焦的能量。描述了通过增加孔径填充和使用高功率真空空间滤波器进行图像中继来提高短脉冲性能的方法。给出了几个功率水平下实验记录的近场和远场数据,并根据非线性光束不稳定性对焦斑强度的限制效应进行了讨论。