High speed silicon microring modulator employing dynamic intracavity energy balance | Zendy

Yunchu Li | Zendy; Lawrence S. Stewart | Zendy; P.D. Dapkus | Zendy

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High speed silicon microring modulator employing dynamic intracavity energy balance

Author(s) -

Yunchu Li,

Lawrence S. Stewart,

P.D. Dapkus

Publication year - 2012

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.007404

Subject(s) - extinction ratio , optics , laser linewidth , materials science , insertion loss , modulation (music) , resonator , coupling loss , bandwidth (computing) , physics , optoelectronics , telecommunications , optical fiber , wavelength , laser , computer science , acoustics

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.

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