Chromatic Dispersion, Nonlinear Parameter, and Modulation Format Monitoring Based on Godard's Error for Coherent Optical Transmission Systems

Lin Jiang; Lianshan Yan; Anlin Yi; Yan Pan; Ming Hao; Wei Pan; Bin Luo; Yves Jaouen

doi:10.1109/JPHOT.2017.2786697

IEEE Photonics Journal (Jan 2018)

Chromatic Dispersion, Nonlinear Parameter, and Modulation Format Monitoring Based on Godard's Error for Coherent Optical Transmission Systems

Lin Jiang,
Lianshan Yan,
Anlin Yi,
Yan Pan,
Ming Hao,
Wei Pan,
Bin Luo,
Yves Jaouen

Affiliations

Lin Jiang: ORCiD; Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Lianshan Yan: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Anlin Yi: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Yan Pan: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Ming Hao: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Wei Pan: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Bin Luo: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Yves Jaouen: LTCI, Télécom ParisTech, Université Paris Saclay, Paris, France

DOI: https://doi.org/10.1109/JPHOT.2017.2786697
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 12

Abstract

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This paper considers Godard's error as signal quality metric to monitor chromatic dispersion (CD), nonlinear parameter and modulation format in the DSP module of the coherent receivers. We first review a CD monitoring based on Godard's error that can be able to accurately monitor arbitrarily large dispersion values in uncompensated transmission links in combination with frequency domain equalizer, then extend the previous nonlinear parameter monitoring method based on Godard's error by blindly obtaining the optimized value γξp to significantly improve the adaptive capability, and present a simple and effective modulation format monitoring based on Godard's error. Meanwhile, the effectiveness has been experimentally verified in 128-Gb/s PDM-QPSK, 192-Gb/s PDM-8QAM, and 256-Gb/s PDM-16QAM systems.

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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