High-quality 8-fold self-compression of ultrashort near-UV pulses in Ar-filled ultrathin-walled photonic crystal fiber

@article{Luan2022Highquality8S,
  title={High-quality 8-fold self-compression of ultrashort near-UV pulses in Ar-filled ultrathin-walled photonic crystal fiber},
  author={Jie Luan and Philip St. J. Russell and David Novoa},
  journal={Photonics Research},
  year={2022}
}
: We demonstrate generation of 7.6 fs near-UV pulses centered at 400 nm via 8-fold soliton-effect self-compression in an Ar-filled hollow-core kagomé-style photonic crystal fiber with ultrathin core walls. Analytical calculations of the effective compression length and soliton order permit adjustment of the experimental parameters, and numerical modelling of the nonlinear pulse dynamics in the fiber accurately predict the spectro-temporal profiles of the self-compressed pulses. After… 

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