准分子宽带泵浦碱金属激光器泵浦特性分析
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams（2012）
Abstract
建立了以Rb-Ar混合气体为增益介质的四能级准分子宽带泵浦碱金属激光器(XPAL)含时速率方程模型,计算得到了运转过程各能级粒子数和腔内激光强度随时间的变化曲线.结果表明:XPAL的阈值泵浦强度很高,泵浦源谱宽与吸收线宽匹配不能达到提高吸收效率、降低阈值的目的；在泵浦功率一定的条件下,增加介质长度和温度可以提高吸收效率,但将降低单位体积泵浦速率；XPAL成功的关键在于实现有效的泵浦吸收.
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Key words
Absorption efficiency,Excimer pumped alkali laser,Rate equation model,Threshold pump intensity
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