Optical fiber communications is a field of engineering that deals with the transmission of information using light signals through thin strands of glass or plastic. Optical fibers have many advantages over traditional copper wires, such as higher bandwidth, lower attenuation, immunity to electromagnetic interference, and security. Optical fiber communications is widely used in telecommunication networks, internet services, cable television, and data centers.
In this article, we will review the fourth edition of the book Optical Fiber Communications by Gerd Keiser, which is a popular text and reference book for students and professionals in this field. The book covers the fundamental principles and applications of optical fiber technology, as well as the latest developments and trends in the optical domain. The book is divided into four parts:
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- Part I: Overview of Optical Fiber Communications. This part introduces the basic concepts and terminology of optical fiber communications, such as optical sources, detectors, fibers, couplers, amplifiers, modulators, and receivers. It also discusses the system design issues and performance parameters, such as power budget, rise time budget, dispersion, noise, and bit error rate.
- Part II: Optical Fiber Transmission Characteristics. This part focuses on the physical properties and phenomena of optical fibers, such as attenuation, scattering, absorption, nonlinear effects, polarization effects, and fiber fabrication and testing. It also describes the different types of optical fibers, such as single-mode, multimode, graded-index, step-index, dispersion-shifted, dispersion-compensating, and photonic crystal fibers.
- Part III: Optical Fiber Devices and Components. This part covers the various passive and active devices and components that are used in optical fiber systems, such as connectors, splices, couplers, splitters, filters, isolators, circulators, switches, multiplexers, demultiplexers, wavelength converters, transmitters, receivers, amplifiers (EDFA and Raman), lasers (DFB and VCSEL), LEDs (SLED and RCLED), photodiodes (PIN and APD), modulators (EOM and MZM), and detectors (O/E converters).
- Part IV: Optical Fiber Systems and Applications. This part presents the different types of optical fiber systems and applications that are used in modern telecommunication networks. It covers topics such as optical network architectures (PONs and WDMs), optical network components (ROADMs and OADMs), optical network design (routing and protection), optical network management (monitoring and control), optical network standards (SONET/SDH and OTN), optical network protocols (Ethernet and IP), optical network security (encryption and authentication), optical wireless communications (FSO and VLC), optical interconnects (chip-to-chip and board-to-board), optical sensors (fiber Bragg gratings and interferometers), and optical signal processing (all-optical logic gates and regenerators).
The book is written in a clear and concise style with numerous examples, figures, tables, and problems. It also provides references to further reading and online resources for each chapter. The book is suitable for undergraduate and graduate courses in electrical engineering, computer engineering, and physics, as well as for self-study and professional development.
The fourth edition of the book has been updated and revised to reflect the latest advances and innovations in optical fiber technology and applications. Some of the new features include:
- A new chapter on photonic crystal fibers, which are novel fibers with periodic structures that enable novel light propagation and manipulation.
- A new chapter on optical wireless communications, which are wireless systems that use light signals instead of radio waves for data transmission and communication.
- A new chapter on optical interconnects, which are high-speed links that use optical fibers or waveguides to connect electronic devices or circuits.
- A new chapter on optical signal processing, which are techniques that use light signals to perform functions such as switching, routing, multiplexing, demultiplexing, modulation, demodulation, amplification, regeneration, and logic operations.
- An expanded coverage of topics such as fiber fabrication and testing, fiber nonlinear effects, fiber amplifiers, fiber lasers, fiber modulators, fiber detectors, optical network architectures, optical network components, optical network design, optical network management, optical network standards, optical network protocols, opt 8cf37b1e13