Fig. 2.
Measured spectrum and second harmonic autocorrelation taken with the single-mode diode-pumped mode locked Cr3+:LiCAF laser using the 2% output coupler at an absorbed pump power of ~600 mW. The FWHM of the autocorrelation is 108 fs, corresponding to a ~70-fs pulse duration (assuming sech2 pulse shape). The average output power is 180 mW, corresponding to a pulse energy of 1.8 nJ for the 100-MHz repetition rate cavity. The spectrum has a bandwidth of 10.2 nm (FWHM) centered around ~800 nm. The corresponding time bandwidth product is ~0.335.
