The promise of the on-line communications revolution is widely acknowledged but not yet fulfilled. Broader access to optical fiber systems holds the key to future success, and their superior transmission capabilities will provide the true gateway to the information superhighway Introduction to Lightwave Communication Systems covers the cutting-edge of this critically important technology, and provides an excellent technical grounding in the field.

The state of the art of modern lightwave system design Recent advances in lightwave technology have led to an explosion ofhigh-speed global information systems throughout the world.Responding to the growth of this exciting new technology, LightwaveTechnology provides a comprehensive and up-to-date account of theunderlying theory, development, operation, and management of thesesystems from the perspective of both physics and engineering. The first independent volume of this two-volume set, Components andDevices, deals with the multitude of silica- andsemiconductor-based optical devices. This second volume,Telecommunication Systems, helps readers understand the design ofmodern lightwave systems, with an emphasis on wavelength-divisionmultiplexing (WDM) systems. * Two introductory chapters cover topics such as modulation formatsand multiplexing techniques used to create optical bitstreams * Chapters 3 to 5 consider degradation of optical signals throughloss, dispersion, and nonlinear impairment during transmission andits corresponding impact on system performance * Chapters 6 to 8 provide readers with strategies for managingdegradation induced by amplifier noise, fiber dispersion, andvarious nonlinear effects * Chapters 9 and 10 discuss the engineering issues involved in thedesign of WDM systems and optical networks Each chapter includes problems that enable readers to engage andtest their new knowledge to solve problems. A CD containingilluminating examples based on RSoft Design Group's award-winningOptSim optical communication system simulation software is includedwith the book to assist readers in understanding design issues.Finally, extensive, up-to-date references at the end of eachchapter enable students and researchers to gather more informationabout the most recent technology breakthroughs andapplications. With its extensive problem sets and straightforward writing style,this is an excellent textbook for upper-level undergraduate andgraduate students. Research scientists and engineers working inlightwave technology will use this text as a problem-solvingresource and a reference to additional research papers in thefield.

Principles of Lightwave Communications Göran Einarsson Royal Institute of Technology, Stockholm, Sweden Advances in optical communications and optoelectronic components have revolutionized telecommunication transmission. Uniquely, this book provides a comprehensive treatment of optical fiber communications using a modern communication theory approach. Presenting mathematical models for the building blocks of optical systems, this authoritative text provides a solid basis for analysis and design of lightwave communications systems. Features include: Introduction to the theory of dispersion in optical fibers including solitons Analysis of Heterodyne reception, including the effect of laser phase noise In-depth coverage of optical amplifiers from a communication theory point of view Optical detection theory with PIN-diodes and avalanche photodetectors with a detailed discussion of optical information theory Comprehensive treatment of direct detection receivers and systems Basics of analog optical systems This book is essential reading for engineers and scientists working in research and development of optical communication systems, particularly optical detection and fiber optics. Postgraduate students of physics and optical communications, with a basic knowledge of optics and optical semiconductor components, will also find this an invaluable reference source.

This book covers a wide range of technical issues relating to lightwave technologies using high coherence lightwaves. Electromagnetic wave communication started when the first wireless system was invented by Marconi in 1895. However, we had to wait about one hundred years to realize a similar technology in the lightwave frequency region. The invention of lasers in 1960 and two technology innovations in 1970 -low loss silica fiber and semiconductor lasers operating at room temperature - promoted the development of fiber-optic transmission systems. The deployment of high-speed long-haul fiber-optic transmission systems has led to the formation of domestic and international trunk networks. The installed fiber cables in local loop plants provide multimedia communication services including broadband video. However, present lightwave communication systems do not fully utilize the fruitful potential oflightwaves, namely the capacity of extremely high frequency electromagnetic information carrier waves. The frequency oflightwaves used for fiber-optic transmission is about 200 THz 14 (2 x 10 Hz), and the frequency bandwidth of the fiber low loss region is about 13 20 THz (2 x 10 Hz). Recent developments of narrow spectrum width semiconduc tor laser and planar optical waveguide devices offer us the possibilities for a new generation of lightwave-based communication systems. This book focuses on system aspects ofthe new generation lightwave communi cation technologies such as optical frequency division multiplexing and coherent detection. Chapter 1 overviews lightwave communication system technology.

This book explains how optical communication systems are used to provide high-speed communication connections. You will learn basic optical principles including how to create and detect light signals, reflection and refraction, basic lightwave propagation and optical signal processing Provided is an overview of the components and basic operation of optical systems including synchronous optical network (SONET), synchronous digital hierarchy (SDH), fiber distributed data interface (FDDI), passive optical networks (PON) and dense wave division multiplexing (DWDM). The common types of network equipment such as ONU, ADM, and optical switches are described. Discover how optical transmitters and modulators operate including light emitting diodes (LEDs) and LASERS. The differences between these light sources are explained along with how some types of light sources are better suited to send information over short and long distances. Fiber optic transmission is described including how single mode and multimode optical fibers operate along with their transmission characteristics. You will learn how modal dispersion, material dispersion and cable bending affects the performance and ability of fiber cable to transfer light signals. The methods and devices used to couple light signals into and out of fiber cables are discussed. You will discover how photodetection and optical receivers convert optical signals into electrical signals along with the different types of photodetectors and their ability (sensitivity) to light signals. Explained are the basics of how optical demodulation and demultiplexing are used to receive, separate multiple channels of optical signals. An introduction to testing in optical systems is included. The basic methods of optical fiber testing including continuity testing and measuring optical loss is included. Discover how to use an optical time domain reflectometer (OTDR) to identify the specific locations of breaks or distortions in fiber cable. Learn the basic steps for fiber optic link and system acceptance testing. Troubleshooting processes and tips are included to help you diagnose and repair equipment and link failures along with how to maintain maintenance records.

The up-to-date edition of the bestselling guide to the basics of telecommunications and digital technology Understanding Telecommunications and Lightwave Systems presents a nontechnical treatment of how voice, video, and multimedia can simultaneously travel over today's evolving telecommunications systems. This updated Third Edition provides a comprehensive overview of the telecommunications field as well as a detailed introduction to the latest lightwave technology. The author's examination of recent techniques and developing technologies in telecommunications includes: Third-generation cell phones with microbrowser capabilities Changes in the global PCS network Optical switching and transmission parameters Lightwave systems and Dense Wavelength Division Multiplexing A new chapter (Chapter 17: The Internet) that examines this multimedia structure and the network economy it has created Satellite communications, new transcontinental carriers, lightwave undersea systems, and other advances toward improving global communication Understanding Telecommunications and Lightwave Systems is the perfect introduction for anyone whose work requires a fundamental understanding of current developments in telecommunications, as well as for students or inquiring readers who want an overview of telecommunications and the exciting technology of lightwave communications.