title: Pulse propagation near zero group-velocity dispersion in a femtosecond dye laser.
abstract: The propagation of femtosecond pulses in a colliding-pulse mode-locked dye laser near zero group-velocity dispersion is studied. The pulse spectrum is shown to exhibit a double-peak structure. This structure and its dependence on the intracavity dispersion can be explained by nonlinear pulse propagation near zero dispersion. A value for the third-order dispersion of the laser cavity is deduced and is found to be predominant for pulses shorter than 50 fsec.
authors.forename: F
authors.initials: F
authors.lastname: Salin
authors.forename: P
authors.initials: P
authors.lastname: Grangier
authors.forename: P
authors.initials: P
authors.lastname: Georges
authors.forename: A
authors.initials: A
authors.lastname: Brun