Saturation of the Raman amplification by self-phase modulation in silicon nanowaveguides

Felix Kroeger (1) , Alexandre Baron (1) , Aleksandr Ryasnyanskiy (1) , Philippe Delaye (1) , Robert Frey (1) , Nicolas Dubreuil (1)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia

We experimentally show that the self-phase modulation of picosecond pump pulses, induced by both the optical Kerr effect and free-carrier refraction, has a detrimental effect on the maximum on-off Raman gain achievable in silicon on insulator nanowave- guides, causing it to saturate, as we confirm with a simple calculation of the Raman gain.

Domains: Optics [physics.optics]

Felix Kroeger, Alexandre Baron, Aleksandr Ryasnyanskiy, Philippe Delaye, Robert Frey, et al.. Saturation of the Raman amplification by self-phase modulation in silicon nanowaveguides. EOS Topical meeting on Nonlinear Optics and Photonics, Oct 2010, Paris, France. ⟨hal-00561130⟩