Cancellation of Raman pulse walk-off by slow light.
We theoretically demonstrate in a nonlinear optical fiber system with a narrowband Raman gain that pulse walk-off between the pump and the Raman Stokes waves can be fully compensated for by Raman slow light, leading to group-velocity matching between the interacting waves, greater useful interaction length, and thereby enhanced Raman amplification efficiency. Limitations due to Kerr effect are further discussed.
Fanjoux
Gil
G
Département d'Optique P.M. Duffieux, Institut Franche-Comté Electronique, Mécanique, Thermique et Optique Sciences et Technologies, (FEMTO-ST) Université de Franche-Comté, Besançon, France. gil.fanjoux@univ-fcomte.fr
Sylvestre
Thibaut
T