Chromatic Dispersion, Nonlinear Parameter, and Modulation Format Monitoring Based on Godard's Error for Coherent Optical Transmission Systems
Open Access
- 27 December 2017
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Journal
- Vol. 10 (1), 1-12
- https://doi.org/10.1109/jphot.2017.2786697
Abstract
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.Keywords
Funding Information
- National Natural Science Foundation of China (61335005, 61325023, 61401378)
- Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University
This publication has 31 references indexed in Scilit:
- Signal Processing Techniques for Reducing the Impact of Fiber Nonlinearities on System PerformancePublished by Optica Publishing Group ,2016
- Machine Learning Techniques in Optical CommunicationJournal of Lightwave Technology, 2015
- Simplified Volterra Series Nonlinear Equalizer for Polarization-Multiplexed Coherent Optical SystemsJournal of Lightwave Technology, 2013
- Phase-conjugated twin waves for communication beyond the Kerr nonlinearity limitNature Photonics, 2013
- Fiber Nonlinearities in 16QAM Transmission SystemsPublished by Optica Publishing Group ,2011
- Equalizer Design and Complexity for Digital Coherent ReceiversIEEE Journal of Selected Topics in Quantum Electronics, 2010
- Coherent Optical Single Carrier Transmission Using Overlap Frequency Domain Equalization for Long-Haul Optical SystemsJournal of Lightwave Technology, 2009
- The influence of the dispersion map in coherent optical OFDM transmission systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Reduction of nonlinear phase noise using optical phase conjugation in quasi-linear optical transmission systems.Optics Express, 2007
- Self-Recovering Equalization and Carrier Tracking in Two-Dimensional Data Communication SystemsIEEE Transactions on Communications, 1980