Inverse design optimization for efficient coupling of an electrically injected optical antenna-LED to a single-mode waveguide

Efficient high-speed nanoscale optical sources are required for low-power next-generation data communication. Here we propose an integrated antenna-LED on a single-mode optical waveguide. By leveraging inverse design optimization, we achieved a waveguide coupling efficiency of 94% and an antenna efficiency of 64%, while maintaining a high average enhancement of 144 - potentially enabling > 100GHz direct modulation. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement