Low-Complexity One-Step Digital Back-Propagation for Single Span High-Capacity Coherent Transmissions

Xingyu Zhou; Qunbi Zhuge; Meng Qiu; Fangyuan Zhang; Mohammed Sowailem; Thang M. Hoang; Meng Xiang; Baojian Wu; Kun Qiu; David V. Plant

doi:10.1109/JPHOT.2017.2702379

IEEE Photonics Journal (Jan 2017)

Low-Complexity One-Step Digital Back-Propagation for Single Span High-Capacity Coherent Transmissions

Xingyu Zhou,
Qunbi Zhuge,
Meng Qiu,
Fangyuan Zhang,
Mohammed Sowailem,
Thang M. Hoang,
Meng Xiang,
Baojian Wu,
Kun Qiu,
David V. Plant

Affiliations

Xingyu Zhou: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Qunbi Zhuge: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Meng Qiu: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Fangyuan Zhang: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Mohammed Sowailem: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Thang M. Hoang: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Meng Xiang: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada
Baojian Wu: Key Laboratory of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China
Kun Qiu: Key Laboratory of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China
David V. Plant: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada

DOI: https://doi.org/10.1109/JPHOT.2017.2702379
Journal volume & issue: Vol. 9, no. 3
pp. 1 – 11

Abstract

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A low-complexity one-step digital back-propagation (DBP) scheme is proposed to mitigate intrachannel and interchannel fiber nonlinearities in high-capacity single span transmissions. Compared with conventional coherent receivers, the only additional calculation is a low-complexity nonlinear phase noise compensation stage operated between bulk chromatic dispersion (CD) compensation and adaptive equalizer. The required number of real additions and multiplications per sample are only (6N + 2) and (2N + 6), respectively, where N is the number of compensated wavelength-division-multiplexing (WDM) channels. With the proposed one-step DBP, we demonstrate that the nonlinear noise can be suppressed by >60% in single channel experiments and >40% in seven-channel WDM simulations.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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