Multi-Gigabit Transmission over Multimode Optical Fibre presents a system design approach to single-wavelength laser-based multimode optical fibre transmission systems, operating at multi-gigabit data rates. The first part of the book focuses on theoretical issues, covering close-form mathematical modelling of multimode fibre behaviour, with special attention on the impulse response. Part two presents a modular system modelling approach discussing its features, applications, and limitations. The author gives a detailed discussion of the Electronic Dispersion Compensator implemented using the Decision Feedback Equalizer technique. In addition, pioneering laboratory measurements of 10GbE over several hundreds of meters of legacy multimode fibres are presented in a systematic context for the first time. Multi-Gigabit Transmission over Multimode Optical Fibre: * Provides a comprehensive guide to single-wavelength laser-based multimode optical fibre transmission systems, covering physics, systems and networks. * Covers the theory, modelling and design criteria of high speed and multimode fibre optic communication systems.
* Explains waveguide theories, opto-electronic devices and system design. * Offers a self-contained description of the optical pulse propagation theory. * Discusses Electronic Dispersion Compensation technique as the most efficient mitigation of the multimode pulse dispersion. Multi-Gigabit Transmission over Multimode Optical Fibre will be an essential resource for R&D engineers and system designers, as well as advanced undergraduate and postgraduate students in the area of telecommunications and networking.
Preface. Book Organization. 1. Introductory Concepts. Components and Design Issues for a Multigigabit Link over Multimode Fiber. 1.1 Introduction. 1.2 Multimode Optical Fibers. 1.3 Semiconductor Laser Sources. 1.4 Offset Launch Conditions. 1.5 Optical Receivers. 1.6 Signal Compensation Techniques. 1.7 Conclusions and Recommendations. 1.8 Optical Fiber Transmission Standards. 2. Conductive Transmission Lines. A Simplified Attenuation Model. 2.1 Introduction. 2.2 The Attenuation Model. 2.3 Design Applications. 2.4 Impulse Response. 2.5 Conclusions. 3. Principles of Multimode Optical Fiber. Theory and Modeling Issues for Multigigabit Transmission Links. 3.1 Introduction. 3.2 The Graded Refractive Index. 3.3 Modal Theory of Graded Index Fiber. 3.4 Theory of the Modal Impulse Response. 3.5 Linear Propagation Regime. 3.6 The Optimum Refractive Index. 3.7 Physics of the Chromatic Dispersion. 3.8 Waveguide Dispersion. 3.9 Frequency Chirping. 3.10 Higher-Order Linear Dispersion. 3.11 The Gaussian Model. 4. Theory of Chromatic Response. Modeling Light Source Effect in Multigigabit Transmission Links. 4.1 Introduction and Outline. 4.2 Theory of Chromatic Impulse Response. 4.3 The Chromatic Impulse Response Model. 4.4 Moments of Chromatic Impulse Response. 4.5 Conclusions and Remarks. 5. Theory of Multimode Response. Application to Multigigabit Transmission Links. 5.1 Introduction and Outline. 5.2 Moments of Modal Impulse Response. 5.3 Theory of Multimode Impulse Response. 5.4 The Multimode Impulse Response Model. 5.5 Theory of Multimode Frequency Response. 5.6 Summary and Conclusions. 6. Gaussian Approximation and Applications. Link Bandwidth Calculations. 6.1 The Gaussian Model Approximation. 6.2 Comparing Engineering Solutions. 6.3 Comparison with Transmission Lines. 6.4 Conclusions and Remarks. 7. Multimode Fiber Selected Topics. Impairments and Methods for Multigigabit Transmission Links. 7.1 Impulse Response and Modal Bandwidth. 7.2 Modal Theory of the Step-Index Fiber. 7.3 Mode Power and Launch Conditions. 7.4 Conclusions. 8. The Optical Link Model. Modeling the Optical Channel Behavior for Multigigabit Transmission. 8.1 Introduction. 8.2 System Models and Assumptions. 8.3 The Optical Transmitter. 8.4 Intersymbol Interference. 8.5 The Optical Receiver. 8.6 Conclusions. 9. Principles of Electronic Dispersion Compensation. Concepts and Limitations Applied to Multimode Fiber Transmission. 9.1 Introduction. 9.2 The Optical Decision Process. 9.3 Principles of Linear Equalization. 9.4 Conclusions. 10. Decision Feedback Equalization. Expanding Multimode Fiber Capabilities. 10.1 Introduction. 10.2 Principles of Digital Equalization. 10.3 The Optical Power Penalty. 10.4 The Channel Metric. 10.5 DFE Architectures. 10.6 Conclusions. 11. Transmission Experiments. Deploying Multigigabit Transmission Experiments over Multimode Fiber. 11.1 Introduction. 11.2 Measurement Outline. 11.3 Measurement Setup. 11.4 Polarization Effects in Multimode Fiber. 11.5 Source and Receiver Characterization. 11.6 The Benchmark Multimode Fiber. 11.7 A Simple Optical Link Emulator. 11.8 Polarization Measurements at 10 GbE. 11.9 EDC Measurements over MMF. 11.10 Concluding Remarks. Bibliography. Index.