We demonstrate self-compression of short-wavelength infrared pulses in a multipass cell (MPC) containing a plate of silica. Nonlinear propagation in the cell in the anomalous dispersion regime results in the generation of 14 μJ 22 fs pulses at 125 kHz repetition rate and 1550 nm wavelength. Periodic focusing inside the cell allows us to circumvent catastrophic self-focusing, despite an output peak power of 440 MW well beyond the critical power in silica of 10 MW. This technique allows straightforward energy scaling of self-compression setups and control over the spatial manifestation of Kerr nonlinearity. More generally, MPCs can be used to perform, at higher energy levels, temporal manipulations of pulses that have been previously demonstrated in waveguides.

中文翻译：

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多遍细胞中的自我压缩

我们演示了包含石英板的多通道电池（MPC）中短波长红外脉冲的自压缩。在异常色散状态下，单元中的非线性传播导致在125 kHz重复频率和1550 nm波长下产生14μJ22 fs脉冲。尽管输出峰值功率为440 MW，远远超过了二氧化硅的10 MW的临界功率，但电池内部的周期性聚焦使我们能够避免灾难性的自聚焦。该技术允许直接进行自压缩设置的能量缩放，并控制Kerr非线性的空间表现形式。更一般而言，MPC可用于以更高的能量水平执行先前在波导中已经证明的脉冲的时间操纵。