Broadband spectroscopy using Cr:ZnS mode-locked laser in low-pressure conditions with an antiresonant hollow-core fiber

The dataset contains results of research regarding usability of antiresonant hollow-core fiber as a absorption gas cell for optical frequency comb spectroscopy in a low-vacuum conditions. This data is basis to generate figures for article "Broadband optical frequency comb spectroscopy in low-vacuum conditions with an antiresonant hollow-core fiber".Fig2: Spectrum of soliton shifted in ZBLAN fiber. Wavelength data is in [nm], normalized intensity is in [a.u.].Fig3: Simulated (a) and experimental (b) loss of antiresonant hollow-core fiber. Wavelength data is in [nm], loss is in [dB/m].Fig4: Experimental absorption spectrum, fit based on HITRAN database and residuum for 2.08 ppmv of CH4. Wavenumber data is in [cm^-1], absorption coefficient is in [cm^-1]. (a) for 50 Torr, (b) for 150 Torr, (c) for 250 Torr, (d) for 350 Torr, (e) for 450 Torr, (f) for 550 Torr, (g) for 650 Torr, (h) for 750 Torr.Fig5: Experimental absorption spectrum, fit based on HITRAN database and residuum for 2.08 ppmv of CH4. Wavenumber data is in [cm^-1], absorption coefficient is in [cm^-1]. (a) for 50 Torr, (b) for 750 Torr.Fig6: Measured and fitted values of maximum absorption line coefficient for a single line. Pressure data is in [Torr], absorption coefficient is in [cm^-1].