Demonstration of Stimulated-Raman-scattering suppression in optical fibers in a multifrequency pumping configuration

Patrice Tchofo Dinda (1) , S. Wabnitz (1) , E. Coquet (1) , Thibaut Sylvestre (2) , Hervé Maillotte (2) , Eric Lantz (2)

1 LPUB - Laboratoire de Physique de l'Université de Bourgogne
2 Laboratoire d'optique Pierre Michel Duffieux

We analyze the stimulated-Raman-scattering-(SRS) process induced by a linearly polarized multifrequency pump field in a normally dispersive single-mode fiber. We show, by theoretical analysis and numerical simulations, that the SRS process may be either controlled by switching all the generated Stokes radiations to the lowest-frequency pump or suppressed for all the frequency components of the pump field. The suppression process is achieved by an appropriate choice of the frequency separation between the pumps and a particular power distribution among the frequency components of the pump field. We present experimental spectra showing the effectiveness of this suppression process for a dual-frequency pumping configuration.

Domaines: Optique / photonique

Patrice Tchofo Dinda, S. Wabnitz, E. Coquet, Thibaut Sylvestre, Hervé Maillotte, et al.. Demonstration of Stimulated-Raman-scattering suppression in optical fibers in a multifrequency pumping configuration. Journal of the Optical Society of America B, 1999, 16 (5), pp.757 - 767. ⟨hal-00869598⟩