We present an energy scalable configuration for the generation of high-power few-cycle femtosecond IR pulses based on the sequential parametric amplification of chirped radiation pulses at the idler (0.86 μm) and signal (1.39 μm) wavelengths from the multi-terawatt femtosecond laser system made at the Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences (ILP SB RAS). The configuration under consideration involves the sequential production of radiation pulses with centre wavelengths of 2.24, 3.56, and 7.25 μm. The conditions are determined for the generation of few-cycle pulses with a terawatt peak power in the 3.56 μm (15.8 fs, 1.5 cycles) and 7.25 μm (17.2 fs, shorter than one cycle) domains. The phase transfer between signal and idler waves in the double-chirp parametric amplification is investigated for the first time.

我们提出了一种基于能量的可扩展配置，用于基于高倍数飞秒激光器的惰轮（0.86μm）和信号波长（1.39μm）波长处的chi辐射脉冲的顺序参数放大，来生成高功率的短周期飞秒IR脉冲该系统由俄罗斯科学院西伯利亚分校激光物理研究所（ILP SB RAS）制造。所考虑的配置涉及中心波长为2.24、3.56和7.25μm的辐射脉冲的顺序产生。确定了在3.56μm（15.8 fs，1.5个周期）和7.25μm（17.2 fs，比一个周期短）的域中产生几兆瓦峰值功率的几个周期脉冲的条件。首次研究了双线性调频参量放大中信号波与惰轮之间的相移。