6533b82dfe1ef96bd129156b
RESEARCH PRODUCT
Mechanism of hollow-core-fiber infrared-supercontinuum compression with bulk material
Pierre BéjotJean-pierre WolfJérôme KasparianBruno E. SchmidtFrançois Légarésubject
Physicsbusiness.industryInfraredPhase (waves)ddc:500.201 natural sciencesAtomic and Molecular Physics and OpticsSpectral lineSupercontinuumPulse (physics)010309 opticsWavelengthOpticsPulse compression0103 physical sciences010306 general physicsbusinessSelf-phase modulationdescription
We numerically investigate the pulse compression mechanism in the infrared spectral range based on the successive action of nonlinear pulse propagation in a hollow-core fiber followed by linear propagation through bulk material. We found an excellent agreement of simulated pulse properties with experimental results at 1.8 {mu}m in the two-optical-cycle regime close to the Fourier limit. In particular, the spectral phase asymmetry attributable to self-steepening combined with self-phase modulation is a necessary prerequisite for subsequent compensation by the phase introduced by glass material in the anomalous dispersion regime. The excellent agreement of the model enabled simulating pressure and wavelength tunability of sub-two cycles in the range from 1.5 to 4 {mu}m with this cost-efficient and robust approach.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-06-28 | Physical Review A |