Multidimensional Modulations in Optical Communication Systems

Description

This book analyzes novel possibilities offered to the telecommunication engineer in designing tomorrow’s optical networks. Currently, optical and optoelectronic technologies make possible the realization of high-performance optical fiber communication systems and networks with the adoption of WDM configurations and both linear and nonlinear optical amplifications. The last step for increasing network throughput is represented by the implementation of multidimensional modulation formats in coherent optical communication systems, which enable increasing the bit rate/channel toward 400 Gbit/s/channel and beyond. Following this approach, the main emphasis is placed on innovative optical modulations. Multidimensional Modulations in Optical Communication Systems is an essential guide to the world of innovative optical communications from the point of view of growing capacity and security. It guides researchers and industries with the aim to exploring future applications for optical communications. Cover Half Title Title Page Copyright Page Dedication Table of Contents Preface Introduction References Chapter 1: Optical Communications Systems 1.1 Introduction References Chapter 2: Polarization in Optical Fiber 2.1 Optical Fibers 2.2 Polarization and Radiation Field 2.2.1 Jones Representation 2.2.2 Stokes Representation 2.2.3 Mueller Matrix 2.2.4 Four-Dimensional Representation 2.2.5 Evolution of Polarization in Optical Fiber 2.3 Polarization Effects in Lightwave Systems 2.3.1 Polarization Mode Dispersion (PMD) 2.3.2 PMD Models 2.3.3 PMD and PDL Impairments 2.3.4 Birefringence 2.3.5 Linear Birefringence 2.3.6 Circular Birefringence 2.3.7 Birefringence Models 2.3.8 Model for SSMF with Linear Birefringence 2.3.9 Model for Twisted SSMF 2.3.10 SOP Fluctuations Compensation 2.4 Novel Multilevel Polsk Coherent System 2.4.1 Birefringence as a Resource 2.4.2 System Description 2.4.3 Statistical Analysis 2.4.4 Mathematical Model 2.4.5 Experimental Results 2.4.6 Performance Evaluation 2.4.7 Coherent Detection Performance 2.4.8 Direct Detection Performance 2.5 Multilevel Combined Phase and Polarization Shift Keying Modulation in Twisted Fibers 2.5.1 The Phase Sphere 2.5.2 A Novel Model in Twisted Fibers 2.5.2.1 Transmitter 2.5.2.2 Propagation in a Twisted Fiber 2.5.2.3 Receiver 2.5.3 System Performance Evaluation 2.5.4 Considerations References Chapter 3: Multidimensional Optical Modulations 3.1 Introduction 3.2 Four-Dimensional Modulation 3.3 Phase and Polarization Multidimensional Modulation 3.4 Representations of Optical Fiber Communications in Four- and Three-Dimensional Spaces 3.5 Applications References Conclusions Index