V. Yanovsky et al., GENERATION OF 25-FS PULSES FROM A SELF-MODE-LOCKED CR-FORSTERITE LASER WITH OPTIMIZED GROUP-DELAY DISPERSION, Optics letters, 18(18), 1993, pp. 1541-1543
25-fs pulses with energies of 4 nJ are generated from a self-mode-lock
ed Cr:forsterite laser with optimized cavity dispersion. The duration
of the shortest pulses is limited by the gain bandwidth of Cr:forsteri
te. Using a model based on a solitonlike pulse formation, we infer a v
alue of 2 x 10(-16) cm2/W for the nonlinear refractive index of forste
rite at 1.3 mum.