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Informationen zum Autor Shiva Kumar , Department of Electrical and Computer Engineering, McMaster University, Canada M. Jamal Deen , Department of Electrical and Computer Engineering, McMaster University, Canada Klappentext Fiber-optic communication systems have advanced dramatically over the last four decades, since the era of copper cables, resulting in low-cost and high-bandwidth transmission. Fiber optics is now the backbone of the internet and long-distance telecommunication. Without it we would not enjoy the benefits of high-speed internet, or low-rate international telephone calls.This book introduces the basic concepts of fiber-optic communication in a pedagogical way. The important mathematical results are derived by first principles rather than citing research articles. In addition, physical interpretations and real-world analogies are provided to help students grasp the fundamental concepts.Key Features:* Lucid explanation of key topics such as fibers, lasers, and photodetectors.* Includes recent developments such as coherent communication and digital signal processing.* Comprehensive treatment of fiber nonlinear transmission.* Worked examples, exercises, and answers.* Accompanying website with PowerPoint slides and numerical experiments in MATLAB.Intended primarily for senior undergraduates and graduates studying fiber-optic communications, the book is also suitable as a professional resource for researchers working in the field of fiber-optic communications. Zusammenfassung Fiber-optic communication systems have advanced dramatically over the last four decades, since the era of copper cables, resulting in low-cost and high-bandwidth transmission. Fiber optics is now the backbone of the internet and long-distance telecommunication. Inhaltsverzeichnis Preface xv Acknowledgments xvii 1 Electromagnetics and Optics 1 1.1 Introduction 1 1.2 Coulomb's Law and Electric Field Intensity 1 1.3 Ampere's Law and Magnetic Field Intensity 3 1.4 Faraday's Law 6 1.4.1 Meaning of Curl 7 1.4.2 Ampere's Law in Differential Form 9 1.5 Maxwell's Equations 9 1.5.1 Maxwell's Equation in a Source-Free Region 10 1.5.2 Electromagnetic Wave 10 1.5.3 Free-Space Propagation 11 1.5.4 Propagation in a Dielectric Medium 12 1.6 1-Dimensional Wave Equation 12 1.6.1 1-Dimensional Plane Wave 15 1.6.2 Complex Notation 16 1.7 Power Flow and Poynting Vector 17 1.8 3-Dimensional Wave Equation 19 1.9 Reflection and Refraction 21 1.9.1 Refraction 22 1.10 Phase Velocity and Group Velocity 26 1.11 Polarization of Light 31 Exercises 31 Further Reading 34 References 34 2 Optical Fiber Transmission 35 2.1 Introduction 35 2.2 Fiber Structure 35 2.3 Ray Propagation in Fibers 36 2.3.1 Numerical Aperture 37 2.3.2 Multi-Mode and Single-Mode Fibers 39 2.3.3 Dispersion in Multi-Mode Fibers 39 2.3.4 Graded-Index Multi-Mode Fibers 42 2.4 Modes of a Step-Index Optical Fiber* 44 2.4.1 Guided Modes 46 2.4.2 Mode Cutoff 51 2.4.3 Effective Index 52 2.4.4 2-Dimensional Planar Waveguide Analogy 53 2.4.5 Radiation Modes 54 2.4.6 Excitation of Guided Modes 55 2.5 Pulse Propagation in Single-Mode Fibers 57 2.5.1 Power and the dBm Unit 60 2.6 Comparison between Multi-Mode and Single-Mode Fibers 68 2.7 Single-Mode Fiber Design Considerations 68 2.7.1 Cutoff Wavelength 68 2.7.2 Fiber Loss 69 2.7.3 Fiber Dispersion 74 2.7.4 Dispersion Slope 76 2.7.5 Polarization Mode Dispersion 78 2.7.6 Spot Size 79 2.8 Dispersion-Compensating Fibers (DCFs) 79 2.9 Additional Examples 81 Exercises 89 Further Reading 91...
