Abstract
With the rapid advance of ultrafast laser technology, high-energy few-cycle pulses are becoming increasingly accessible [1]. Recently, the interest of generating high-energy few-cycle pulse has increasingly shifted towards even longer wavelengths in the 2 µm range [2]. However, given the rather narrow band amplification range, gain narrowing effects during the amplification process limit the pulse duration of lasers system to about 2 ps, requiring hundredfold compression to reach the few-cycle range [3]. In the following, we numerically revisit the scenario of pulse compression in solid-state nonlinear media inside multipass cells (MPC). Multi-photon absorption, thermal conductivity, and linear absorption at 2 µm range are considered for silica, sapphire, YAG and diamond.
© 2023 IEEE
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