Modulation contrast optimization for wavelength conversion of a 20 Gbit/s data signal in hybrid InP/SOI photonic crystal nanocavity

Kevin Lenglé (1) , Thanh Nam Nguyen (1) , Mathilde Gay (1) , Laurent Bramerie (1) , Jean-Claude Simon (1) , Alexandre Bazin (2) , Fabrice Raineri (2) , Rama Raj (2)

1 FOTON - Fonctions Optiques pour les Technologies de l'informatiON
2 LPN - Laboratoire de photonique et de nanostructures

Photonic crystal cavity-based switching is studied both theoretically and experimentally in order to identify the best configuration to maximize "wavelength conversion" efficiency. In particular, it is shown that an enhanced contrast can be reached when the probe is blue-shifted with respect to the resonance. The use of an InP/SOI hybrid photonic crystal nanocavity is reported for the first time for all-optical error-free "wavelength conversion" at 20 Gbit/s with an NRZ-OOK signal.

Mots clés: photonic crystals; optical switching devices

Domaines: Optique [physics.optics]

Kevin Lenglé, Thanh Nam Nguyen, Mathilde Gay, Laurent Bramerie, Jean-Claude Simon, et al.. Modulation contrast optimization for wavelength conversion of a 20 Gbit/s data signal in hybrid InP/SOI photonic crystal nanocavity. Optics Letters, 2014, 39 (8), pp.2298-2301. ⟨10.1364/OL.39.002298⟩. ⟨hal-00983566⟩