Advanced Digital Signal Processing for Next-Generation Coherent Optical Communication Transceivers

Research output: Book/ReportPh.D. thesisResearch

Abstract

For many years, research on optical communication technologies have been driven by the ever-increasing demand for higher capacity, lower costs and more energy efficiency. To avoid a capacity crunch, the design of future systems needs to be constantly upgraded. Thus, new advanced digital signal processing (DSP) systems need to be developed in order to meet the requirements of coherent optical communication systems of next generations.

In this context, the contributions presented in this thesis relate to the main topic of DSP for coherent optical communication systems and more specifically in the subsequent subjects: (a) clock recovery; (b) transceiver calibration; and (c) carrier phase recovery (CPR). Regarding (a), original contributions to the study of fully digital clock recovery are presented. Numerical performance investigations are shown for both polarization division multiplexing (PDM) and spatial division multiplexing (SDM) systems. For (b), it is demonstrated novel methods for calibration of both transmitters and receivers. At the transmitter-side, an application of a cooperative coevolutionary genetic algorithm (CC-GA) is discussed. The original contribution comprises the calibration of time skews between electrical components, bias voltages and amplitude imbalances, and it presents novel parameters that can be used for calibration of transmitters. Also, it is demonstrated a joint chromatic dispersion (CD) and time skew estimator for coherent optical receivers. Numerical and experimental performance evaluations are carried out for both methods. Finally, concerning (c), a new algorithm based on principal component analysis (PCA) is proposed for hardware-efficient CPR. The method is compared to state-of-the-art methods by means of simulations and experiments, and outperforms both in computational complexity and overall performance.
Original languageEnglish
PublisherTechnical University of Denmark
Publication statusPublished - 2019

Cite this

@phdthesis{275f681030ff41bba4f2bceb1f1df41d,
title = "Advanced Digital Signal Processing for Next-Generation Coherent Optical Communication Transceivers",
abstract = "For many years, research on optical communication technologies have been driven by the ever-increasing demand for higher capacity, lower costs and more energy efficiency. To avoid a capacity crunch, the design of future systems needs to be constantly upgraded. Thus, new advanced digital signal processing (DSP) systems need to be developed in order to meet the requirements of coherent optical communication systems of next generations.In this context, the contributions presented in this thesis relate to the main topic of DSP for coherent optical communication systems and more specifically in the subsequent subjects: (a) clock recovery; (b) transceiver calibration; and (c) carrier phase recovery (CPR). Regarding (a), original contributions to the study of fully digital clock recovery are presented. Numerical performance investigations are shown for both polarization division multiplexing (PDM) and spatial division multiplexing (SDM) systems. For (b), it is demonstrated novel methods for calibration of both transmitters and receivers. At the transmitter-side, an application of a cooperative coevolutionary genetic algorithm (CC-GA) is discussed. The original contribution comprises the calibration of time skews between electrical components, bias voltages and amplitude imbalances, and it presents novel parameters that can be used for calibration of transmitters. Also, it is demonstrated a joint chromatic dispersion (CD) and time skew estimator for coherent optical receivers. Numerical and experimental performance evaluations are carried out for both methods. Finally, concerning (c), a new algorithm based on principal component analysis (PCA) is proposed for hardware-efficient CPR. The method is compared to state-of-the-art methods by means of simulations and experiments, and outperforms both in computational complexity and overall performance.",
author = "{Medeiros Diniz}, {J{\'u}lio C{\'e}sar}",
year = "2019",
language = "English",
publisher = "Technical University of Denmark",

}

Advanced Digital Signal Processing for Next-Generation Coherent Optical Communication Transceivers. / Medeiros Diniz, Júlio César.

Technical University of Denmark, 2019.

Research output: Book/ReportPh.D. thesisResearch

TY - BOOK

T1 - Advanced Digital Signal Processing for Next-Generation Coherent Optical Communication Transceivers

AU - Medeiros Diniz, Júlio César

PY - 2019

Y1 - 2019

N2 - For many years, research on optical communication technologies have been driven by the ever-increasing demand for higher capacity, lower costs and more energy efficiency. To avoid a capacity crunch, the design of future systems needs to be constantly upgraded. Thus, new advanced digital signal processing (DSP) systems need to be developed in order to meet the requirements of coherent optical communication systems of next generations.In this context, the contributions presented in this thesis relate to the main topic of DSP for coherent optical communication systems and more specifically in the subsequent subjects: (a) clock recovery; (b) transceiver calibration; and (c) carrier phase recovery (CPR). Regarding (a), original contributions to the study of fully digital clock recovery are presented. Numerical performance investigations are shown for both polarization division multiplexing (PDM) and spatial division multiplexing (SDM) systems. For (b), it is demonstrated novel methods for calibration of both transmitters and receivers. At the transmitter-side, an application of a cooperative coevolutionary genetic algorithm (CC-GA) is discussed. The original contribution comprises the calibration of time skews between electrical components, bias voltages and amplitude imbalances, and it presents novel parameters that can be used for calibration of transmitters. Also, it is demonstrated a joint chromatic dispersion (CD) and time skew estimator for coherent optical receivers. Numerical and experimental performance evaluations are carried out for both methods. Finally, concerning (c), a new algorithm based on principal component analysis (PCA) is proposed for hardware-efficient CPR. The method is compared to state-of-the-art methods by means of simulations and experiments, and outperforms both in computational complexity and overall performance.

AB - For many years, research on optical communication technologies have been driven by the ever-increasing demand for higher capacity, lower costs and more energy efficiency. To avoid a capacity crunch, the design of future systems needs to be constantly upgraded. Thus, new advanced digital signal processing (DSP) systems need to be developed in order to meet the requirements of coherent optical communication systems of next generations.In this context, the contributions presented in this thesis relate to the main topic of DSP for coherent optical communication systems and more specifically in the subsequent subjects: (a) clock recovery; (b) transceiver calibration; and (c) carrier phase recovery (CPR). Regarding (a), original contributions to the study of fully digital clock recovery are presented. Numerical performance investigations are shown for both polarization division multiplexing (PDM) and spatial division multiplexing (SDM) systems. For (b), it is demonstrated novel methods for calibration of both transmitters and receivers. At the transmitter-side, an application of a cooperative coevolutionary genetic algorithm (CC-GA) is discussed. The original contribution comprises the calibration of time skews between electrical components, bias voltages and amplitude imbalances, and it presents novel parameters that can be used for calibration of transmitters. Also, it is demonstrated a joint chromatic dispersion (CD) and time skew estimator for coherent optical receivers. Numerical and experimental performance evaluations are carried out for both methods. Finally, concerning (c), a new algorithm based on principal component analysis (PCA) is proposed for hardware-efficient CPR. The method is compared to state-of-the-art methods by means of simulations and experiments, and outperforms both in computational complexity and overall performance.

M3 - Ph.D. thesis

BT - Advanced Digital Signal Processing for Next-Generation Coherent Optical Communication Transceivers

PB - Technical University of Denmark

ER -