Generation of few-cycle laser pulses:Comparison between atomic and molecular gases in a hollow-core fiber

• 作者: 冷雨欣 戴晔 王丁 赵睿睿 黄志远
• 来源期刊: 中国物理B（英文版）
• 关键词: hollow-core fiber phase modulation pulses compression few-cycle pulses
• 年，卷（期）: 2016,（7）
• 页码范围: 074205-1-074205-7
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/25/7/074205

摘要

We numerically study the pulse compression approaches based on atomic or molecular gases in a hollow-core fiber. From the perspective of self-phase modulation (SPM), we give the extensive study of the SPM infl uence on a probe pulse with molecular phase modulation (MPM) effect. By comparing the two compression methods, we summarize their advan-tages and drawbacks to obtain the few-cycle pulses with micro-or millijoule energies. It is also shown that the double pump-probe approach can be used as a tunable dual-color source by adjusting the time delay between pump and probe pulses to proper values.