Pulse propagation near zero group velocity dispersion in a femtosecond dye laser

François Salin (1) , Philippe Grangier (2) , Patrick Georges (1) , Alain Brun (1)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
2 Laboratoire Charles Fabry de l'Institut d'Optique / Optique quantique

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.

Domaines: Optique [physics.optics]

François Salin, Philippe Grangier, Patrick Georges, Alain Brun. Pulse propagation near zero group velocity dispersion in a femtosecond dye laser. Optics Letters, 1990, 15 (23), pp.1374-1376. ⟨hal-00691668⟩