28 Gb/s silicon microring modulation beyond the linewidth limit by coupling modulation

Abstract

A silicon-on-insulator microring modulator with a linewidth of ~ 7 GHz is operated at 28Gb/s by modulation of the microring-bus waveguide coupler. The modulator was driven with pre-emphasized signals with a maximum swing of 1.5Vpp. © 2012 OSA.