Page 8 - Fiber Optic Communications Fund
P. 8
Contents
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