Numerical and experimental study of parabolic pulses generated via Raman amplification in standard optical fibers

Christophe Finot (1) , Guy Millot (1) , Stéphane Pitois (1) , Cyril Billet (2) , John M Dudley (2)

1 LASMEA - Laboratoire des sciences et matériaux pour l'électronique et d'automatique
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

Parabolic pulse generation by Raman amplification has been numerically and experimentally investigated around 1550 nm using a standard normally dispersive nonzero dispersion shifted fiber (NZ-DSF). The output pulses, characterized in intensity and phase using frequency-resolved optical gating, exhibit parabolic features in good agreement with numerical simulations based on two coupled extended nonlinear Schro/spl uml/dinger equations. The influence of the energy and duration of the input pulse has been studied. The ability of the parabolic pulses to propagate self-similarly during additional propagation over 800 m of NZ-DSF has also been demonstrated.

Mots clés: Frequency-resolved optical gating (FROG) characterization; nonlinear fiber optics; optical self-similarity; parabolic pulses; pulse compression; pulse shaping; ultrashort pulse amplification

Domaines: Optique [physics.optics]

Christophe Finot, Guy Millot, Stéphane Pitois, Cyril Billet, John M Dudley. Numerical and experimental study of parabolic pulses generated via Raman amplification in standard optical fibers. IEEE Journal of Selected Topics in Quantum Electronics, 2004, 10 (5), pp.1211-1218. ⟨10.1109/JSTQE.2004.837214⟩. ⟨hal-00095483⟩