Multipulse operation regime in a self-mode-locked Cr4+: forsterite femtosecond laser

B. Chassagne (1) , Gediminas Jonusauskas (1) , J. Oberle (1) , C. Rulliere (1)

1 CPMOH - Centre de physique moléculaire optique et hertzienne

We report the observation of pulse splitting generated from a self-mode-locked Cr4+:forsterite laser operating near zero group-velocity dispersion. This new behavior of a femtosecond Cr4+:forsterite laser could be due to a combination of self-phase modulation, group-velocity dispersion and higher-order phase dispersion inside the laser cavity. The experimental study shows that large third- and fourth-order dispersion inside the cavity leads to the splitting of the solitary pulse into two or three identical pulses, and the results fit reasonably well with those of theoretical calculations.

Domaines: Physique [physics]; Optique [physics.optics]

B. Chassagne, Gediminas Jonusauskas, J. Oberle, C. Rulliere. Multipulse operation regime in a self-mode-locked Cr4+: forsterite femtosecond laser. Optics Communications, 1998, 150 (1-6), pp.355-362. ⟨10.1016/S0030-4018(98)00025-X⟩. ⟨hal-01550293⟩