Fast nonlinear response in a GaAs photonic crystal waveguide in the picosecond regime

Alexandre Baron (1) , Aleksandr Ryasnyanskiy (1) , Quynh Vy Tran (2) , Sylvain Combrié (2) , Nicolas Dubreuil (1) , C. Husko (2) , Philippe Delaye (1) , Robert Frey (1) , Gérald Roosen (1) , Simone Cassette (3) , Alfredo de Rossi (2)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia
2 Thales Research and Technology [Palaiseau]
3 THOMSON-CSF LCR - Thomson-CSF Laboratoire Central de Recheche

We identify strong and fast refractive index changes that have a time constant of less than 10 ps, whilst studying the propagation of short pulses in GaAs photonic crystal (PC) waveguides on membrane. These measurements also illustrate the nonlinearities enhancement in PC structures and reveal the full potential of GaAs based devices for fast optical signal processing.

Domaines: Optique [physics.optics]

Alexandre Baron, Aleksandr Ryasnyanskiy, Quynh Vy Tran, Sylvain Combrié, Nicolas Dubreuil, et al.. Fast nonlinear response in a GaAs photonic crystal waveguide in the picosecond regime. EOS annual meeting, Sep 2008, Paris, France. ⟨hal-00561104⟩