Sub-50 Fs Self-Compression of 5-μm Pulses in a Hollow-Core Fiber
Martin BöckMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489У. К. СапаевTashkent State Technical University,Tashkent,Usbekistan,100095Jı Eun BaeCIMAP, Université de Caen Normandie,UMR 6252 CNRS,Caen,France,14050Anton HusakouMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489Joachım HerrmannMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489Tamás NagyMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489Dennıs UeberschaerMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489Uwe GriebnerMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy,Berlin,Germany,12489
2025en
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Annotatsiya
High-energy few-cycle pulses in the mid-IR are important for applications in strong-field physics. A popular method to generate such pulses is spectral broadening of ultrashort pulses by means of self-phase modulation (SPM) in a nonlinear medium with subsequent post-compression. This is an established technique in the near infrared by employing hollow-core fibers (HCF) [1], thin plates or multi-pass cells, but there are no studies for wavelengths longer than 4 μm. Here, we report self-compression of pulses at 5-μm wavelength in a HCF due to solitonic effects. A numerical model is established for the pulse propagation and is benchmarked against the experimental results.
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