论文标题
大压缩因子下压缩后脉冲的时间质量
Temporal quality of post-compressed pulses at large compression factors
论文作者
论文摘要
通过自相度调制对超短激光脉冲进行压缩后，通常用于生成具有光带宽的激光脉冲，远远超出了激光增益的限制。尽管可以常规地实现高压缩因子，但压缩脉冲通常会遭受时间质量降解。我们在数值和实验上分析了随着压缩因子的增加的不同度量测量方法的恶化，并显示了如何采用适当的分散处理和级联，以限制这种效果的影响。大型压缩因子在脉冲质量降解的饱和饱和度使新型飞秒激光体系结构基于压缩后的PICO-甚至纳秒激光系统的视线。
Post-compression of ultra-short laser pulses via self-phase modulation is routinely employed for the generation of laser pulses with optical bandwidths reaching far beyond the laser gain limitations. While high compression factors can be routinely achieved, the compressed pulses typically suffer from temporal quality degradation. We numerically and experimentally analyze the deterioration of different measures of temporal quality with increasing compression factor and show how appropriate dispersion management and cascading of the post-compression process can be employed to limit the impact of this effect. The demonstrated saturation of pulse quality degradation at large compression factors puts novel femtosecond laser architectures based on post-compressed pico- or even nanosecond laser systems in sight.
