Two-copy wavelength conversion of an 80 Gbit/s serial data signal using cross-phase modulation in a silicon nanowire and detailed pump-probe characterisation

We experimentally demonstrate 80 Gbit/s wavelength conversion to two copies by simultaneously extracting the blue- and red-shifted sidebands from XPM in a silicon nanowire. Bit error rates of 10-9 with only ~2 dB power penalty is achieved for both sidebands. Detailed pump-probe characterisation reveals amplitude and phase responses.