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arXiv · 2201.12986

Double-pass multiple-plate continuum for high temporal contrast nonlinear pulse compression

Bo-Han Chen·Jia-Xuan Su·Jhan-Yu Guo·Kai Chen·Shi-Wei Chu·Hsuan-Hao Lu·Chih-Hsuan Lu·Shang-Da Yang
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Abstract

We propose a new architecture, double-pass multiple-plate continuum (DPMPC), for nonlinear pulse compression. In addition to smaller footprint, a double-pass configuration is designed to achieve substantial bandwidth broadening without incurring noticeable higher-order dispersion, thus improving the temporal contrast over those of traditional single-pass geometry when only quadratic spectral phase can be compensated. In our proof-of-concept experiment, 187~$\mu$J, 190-fs Yb-based laser pulse is compressed to 20~fs with high throughput (75%), high Strehl ratio (0.76) and excellent beam homogeneity by using DPMPC. Subsequently generated octave-spanning spectrum exhibits a significantly raised blue tail compared with that driven by pulses from a single-pass counterpart.

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Bo-Han Chen, Jia-Xuan Su, Jhan-Yu Guo, Kai Chen, Shi-Wei Chu, Hsuan-Hao Lu, Chih-Hsuan Lu, Shang-Da Yang. 2022-01-31. Double-pass multiple-plate continuum for high temporal contrast nonlinear pulse compression. https://doi.org/10.3389/fphot.2022.937622

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