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中文摘要：
利用光参量放大过程输出的闲置光载波-包络相位（CEP）被动稳定的特点,搭建了三级光参量放大（OPA）系统,获得了CEP稳定的近红外高能量超短激光脉冲（1.4mJ/40fs/1kHz@1.8μm）,其CEP抖动为516mrad（rms）.经空心光纤展宽光谱和块体材料补偿色散,激光脉宽最终可被压缩至小于两个光学周期（〈12fs）,脉冲能量达到0.54mJ.该系统为单个阿秒脉冲的产生和其他高次谐波实验提供了优质的光源.
英文摘要：
According to the feature of the passive carrier-envelope phase（CEP） stabilized idler of the optical parametric amplified process,a CEP stabilized three-stage collinear optical parametric amplifier is built.Millijoule ultrashort infrared output（1.4 mJ /40 fs /1 kHz at 1.8 μm） with CEP fluctuation ～ 516mrad is obtained from the system.After passing through a hollow-core fiber and block material,the pulses are finally compressed to less than two cycles（ 12 fs）,and the single pulse energy is 0.54mJ.The system provides an excellent laser source for the experiments of individual attosecond pulse generation and other high harmonic generation（HHG）.
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