Fig. 5
Comparison of experimental and simulated spectral fingerprints of generated supercontinua. a Measured output spectra (log. power scale: −35 to 0 dB) of the CS2/silica LiCOF for increasing pulse energy. Red lines: measured spectral position of the dispersive wave with the lowest wavelength (solid) and the phase-matched wavelengths of the first fundamental solitary wave for the three different nonlinear phase shifts (numbers correspond to the cases discussed in the main text). The right-handed insets show the measured near-field profiles at three selected wavelengths (pulse energy 8 nJ). OSA optical spectral analyser, FTIR Fourier transform infrared spectrometer, ZDW zero-dispersion wavelength. b Simulated single-pulse spectra (GNLSE) for increasing input pulse energy (log. power scale: −35 to 0 dB), using a pulse shape reconstructed from the experiment, and the full temporal response of CS2. c Simulated single-pulse spectra for increasing input pulse energy (log. power scale: −35 to 0 dB), using a specialised hybrid Schrödinger equation
