We present a novel, robust and efficient scheme for nonlinear pulse compression at highest average powers, which is based on self-phase modulation in a bulk nonlinear medium placed inside a multi-pass-cell (MPC). The scheme is suitable for the compression of sub-ps pulses with peak powers exceeding the threshold for catastrophic self-focusing of the nonlinear medium. Experimentally, we compress the output pulses from an Yb:YAG-Innoslab amplifier from 850 fs to <170 fs at 375 W of output power, 37.5 μJ pulse energy and almost diffraction-limited beam quality using fused silica as the nonlinear medium. The efficiency of the compression unit exceeds 90%.
Jan Schulte, Thomas Sartorius, Johannes Weitenberg, Andreas Vernaleken, and Peter Russbueldt, "375-W 37.5-µJ less than 170 fs laser system utilizing nonlinear pulse compression in fused silica," Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 1008217 (Presented at SPIE LASE: February 01, 2017; Published: 17 February 2017); https://doi.org/10.1117/12.2250920.
Conference Presentations are recordings of oral presentations given at SPIE conferences and are published as part of the conference proceedings. They include the speaker's narration along with video of the slides and animations. Most also include full-text papers. Interactive, searchable transcripts and closed captioning are now available for 2018 presentations, with transcripts for prior recordings added daily.
Search and browse our growing collection of more than 16,000 conference presentations, including many plenary and keynote presentations.