Abstract
Nonlinear pulse post-compression represents an efficient method for ultrashort, high-quality laser pulse production. The temporal pulse quality is, however, limited by amplitude and phase modulations intrinsic to post-compression. We here characterize in frequency and time domain with high dynamic range individual post-compressed pulses within laser bursts comprising 100-kHz-rate pulse trains. We spectrally broaden 730 fs, 3.2 mJ pulses from a Yb:YAG laser in a gas-filled multi-pass cell and post-compress them to 56 fs. The pulses exhibit a nearly constant energy content of 78% in the main peak over the burst plateau, which is close to the theoretical limit. Our results demonstrate attractive pulse characteristics, making multi-pass post-compressed lasers very applicable for pump–probe spectroscopy at, e.g., free-electron lasers or as efficient drivers for secondary frequency conversion stages.
Original language | English |
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Pages (from-to) | 4686-4689 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 46 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2021 Sept 15 |
Bibliographical note
Publisher Copyright:© 2021 Optical Society of America
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Subject classification (UKÄ)
- Atom and Molecular Physics and Optics