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Journal articles
Chromatic dispersion, nonlinear parameter and modulation formats monitoring based on Godard’s error for coherent optical transmission systems
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.
Cited literature [34 references]
https://hal.telecom-paris.fr/hal-02287757
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Submitted on : Friday, February 21, 2020 - 6:20:02 PM
Last modification on : Wednesday, October 27, 2021 - 6:43:20 AM
Contributor : Telecomparis Hal Connect in order to contact the contributor
Submitted on : Friday, February 21, 2020 - 6:20:02 PM
Last modification on : Wednesday, October 27, 2021 - 6:43:20 AM
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