Kerr Nonlinearity Mitigation: Mid-Link Spectral Inversion Versus Digital Backpropagation in 5×28-GBd PDM 16-QAM Signal Transmission

Isaac Sackey, Francesco Da Ros, Johannes Karl Fischer, Thomas Richter, Mahmoud Jazayerifar, Christophe Peucheret, Klaus Petermann, Colja Schubert

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    Abstract

    We experimentally investigate Kerr nonlinearity mitigation of a 28-GBd polarization-multiplexed 16-QAM signal in a five-channel 50-GHz spaced wavelength-division multiplexing (WDM) system. Optical phase conjugation (OPC) employing the mid-link spectral inversion technique is implemented by using a dual-pump polarization-independent fiber-optic parametric amplifier and compared to digital backpropagation (DBP) compensation over up to 800-km in a dispersion-managed link. In the single-channel case, the use of the DBP algorithm outperformed the OPC with a Q-factor improvement of 0.9 dB after 800-km transmission. However, signal transmission was not possible with DBP in the WDM scenario over the same link length while it was enabled by the OPC with a maximum Q-factor of 8.6 dB.
    Original languageEnglish
    JournalJournal of Lightwave Technology
    Volume33
    Issue number9
    Pages (from-to)1821-1827
    ISSN0733-8724
    DOIs
    Publication statusPublished - 2015

    Bibliographical note

    (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

    Keywords

    • Communication, Networking and Broadcast Technologies
    • Photonics and Electrooptics
    • Erbium-doped fiber amplifiers
    • Optical fiber amplifiers
    • Optical fiber communication
    • Optical fiber dispersion
    • Optical fiber polarization
    • Q-factor
    • Wavelength division multiplexing

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