Nonlinear pulse compression to sub-two-cycle, 1.3 mJ pulses at 1.9 μm wavelength with 132 W average power

Ziyao Wang, Tobias Heuermann, Martin Gebhardt, Mathias Lenski, Philipp Gierschke, Robert Klas, Jan Rothhardt, Cesar Jauregui, Jens Limpert

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We report the nonlinear pulse compression of a high-power, thulium-doped fiber laser system using a gas-filled hollow-core fiber. The sub-two cycle source delivers 1.3 mJ pulse energy with 80 GW peak power at a central wavelength of 1.87 μm and an average power of 132 W. This is, so far, to the best of our knowledge, the highest average power of a few-cycle laser source reported in the short-wave infrared region. Given its unique combination of high pulse energy and high average power, this laser source is an excellent driver for nonlinear frequency conversion, toward terahertz, mid-infrared, and soft X-ray spectral regions.
Original languageEnglish
Pages (from-to)2647-2650
Number of pages4
JournalOptics Letters
Volume48
Issue number10
Early online date9 May 2023
DOIs
Publication statusPublished - 15 May 2023

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