High-efficiency Thin-Plate Compression of Multi-Tw Ti:sapphire Lasers
HIGH POWER LASER SCIENCE AND ENGINEERING（2025）
China Acad Engn Phys
Abstract
Nonlinear compression experiments based on multiple solid thin plates are conducted in an ultra-high peak power Ti:sapphire laser system. The incident laser pulse, with an energy of 80 mJ and a pulse width of 30.2 fs, is compressed to 10.1 fs by a thin-plate based nonlinear compression. Significant small-scale self-focusing is observed as ring structures appear in the near-field of the output pulse at high energy. Numerical simulations based on the experimental setup provide a good explanation for the observed phenomena, offering quantitative predictions of the spectrum, pulse width, dispersion and near- and far-field distributions of the compressed laser pulse.
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Key words
nonlinear compression,ultra-high peak power laser,small-scale self-focusing
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