title: High speed silicon microring modulator employing dynamic intracavity energy balance.
abstract: High speed coupling-modulation of a microring-based light drop structure is proposed, which removes severe signal distortion due to intracavity energy depletion and separates the modulation speed from the resonator linewidth restriction. Extinction ratio improvement from <1 dB to >20 dB with 40 Gb/s non-return-to-zero (NRZ) signals is obtained with 25 times smaller drive voltage. The tolerance to active ring propagation loss is increased from 5 dB/cm to over 25 dB/cm with less than 5% modulation bandwidth reduction. The possibility of obtaining 160 Gb/s NRZ signal with no more than 4 V drive voltage and less than 5 dB insertion loss is highlighted.
authors.affiliation: University of Southern California, 3651 Watt Way, VHE 302, Los Angeles, California 90089, USA. yunchuli@usc.edu
authors.forename: Yunchu
authors.initials: Y
authors.lastname: Li
authors.forename: Lawrence S
authors.initials: LS
authors.lastname: Stewart
authors.forename: P Daniel
authors.initials: PD
authors.lastname: Dapkus
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008904:Miniaturization; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D012825:Silicon