56 Gb/s single-carrier 16-QAM and 32-QAM subcarrier modulation using a silicon micro-ring resonator

Single-carrier, single-polarization subcarrier modulation systems are demonstrated at a bit rate of 56 Gb/s using a silicon micro-ring resonator modulator. Transmission over 10 km SMF is achieved for 16-QAM and 32-QAM by compensating for nonlinear signal distortion.