Glasfaseroptik

This book primarily focuses on the authors' research and practical achievements in the field of photonic integrated phased arrays in recent years. Firstly, a comprehensive introduction on the concept, operation principles, and research progress of photonic integrated phased arrays is introduced. Then, detailed explanations of the optical antenna and array design in photonic integrated phased arrays are given. Combined with design cases of silicon-based optical phased arrays with different scales, the design methods for achieving low sidelobes are deeply researched, and the test principle and design of photonic integrated phased arrays are elaborated. Finally, the design, implementation, and test of photonic integrated phased arrays are illustrated through a detailed case study on the development of a silicon-based optical phased array chip and verify its short-distance space optical communication based on the chip.This book is dedicated to integrating the theory, design, processing, and test cases of photonic integrated phased arrays, and it provides a valuable reference for researchers and designers in the field of optical phased array technology.

This book gives an overview on mid-infrared optical glass and fibers laser, it cover the underlying principle, historic background, as well as recent advances in materials processing and enhanced properties for rare earth doped luminescence, spectroscopy lasers, or optical nonlinearity applications. It describes in great detail, the preparation of high purity non-oxide IR glass and fibers to be used as mid-IR fiber laser and supercontinuum sources for optical fiber spectroscopy. It will be useful for academics, researchers and engineers in various disciplines who require a broad introduction to the subject and would like to learn more about the state-of-the-art and upcoming trends in mid-infrared fiber source development, particularly for industrial, medical and military applications.

This book highlights the comprehensive knowledge and latest progress in broadband terahertz (THz) technology. THz communication technology is believed to be one of the major choices that succeed the fifth-generation (5G) communication technology. With years of efforts, the author's team has created a number of world records in the generation, transmission, and reception of ultra wideband THz signal, realizing the MIMO transmission and reception of THz communication, the THz signal transmission with communication capacity of 1 Tbit / s, and the optical fiber and THz integrated transmission. A variety of linear and nonlinear algorithms for multi-carrier and single-carrier THz communication systems are developed, which greatly improves the transmission performance of broadband systems. The book covers in details the broadband THz signal generation, long-distance transmission, and high sensitivity detection. It is of great reference value for researchers, engineers, and graduate students in optical and wireless communications.

This book addresses 5G network capacity requirements with a new architecture for 5G Optical Backhaul Network. The author first describes the challenges for 5G backhaul network requirements and then the details of an Optical Backhaul Network for 5G. The author describes an architecture, in which small cells deploy as a cluster (i.e., 3-5 small cells in one cluster), where one small cell works as an aggregation point using an optical transceiver to backhaul the aggregated traffic to the nearest optical network unit, before it then goes to the core network. This book also illustrates the optical link budget analysis that can be used to determine the availability and the performances of the optical backhaul link in different deployment scenarios and different weather conditions. Provides a single-source reference to the basics of free space laser communication with ambient light compensation;Offers timely information, blending theory and practice;Written to be accessible to readers with varying backgrounds, including numerous illustrations;Provides hands-on experience through practical examples, which can be put to work to deploy and optimize cellular networks.

Nous n'avons encore parlé que des télégraphes électriques établis sur la terre ; nous n'avons considéré jusqu'ici que ces fils métalliques élevés dans l'espace, et soutenus par des supports isolants, au milieu de l'air, qui est par lui-même mauvais conducteur de l'électricité. Il nous reste à faire connaître l'entreprise extraordinaire qui a eu pour résultat de créer des communications du même genre à travers la mer, c'est-à-dire au milieu de la substance la plus susceptible, en raison de son extrême conductibilité, de disséminer le fluide électrique...

The Internet revolution. Once, the public was delighted with 14.4 modem access and fascinated by low-tech Web site content. But not for long. Technology has raced to keep up with users' calls for high-speed facilities and advanced applications. With the development of high-speed transmission media and the availability of high-speed hardware, we are fast approaching the day when a single communication network will support all communication activities-and that network will use optical fibers as its transmission media and optical switch/routers as its nodes.The Handbook of Optical Communication Networks presents comprehensive, up-to-date technical information on integrated, state-of-the-art optical networks. Beginning with an in-depth intoduction to the field, top international authorities explore every major aspect of optical networks, from basic concepts to research grade material. Their discussions cover all of the essential topics, including protocols, resource management, routing and wavelength assignment in WDM networks, connection management, survivability, enabling technologies, and future trends.To meet the remaining technical and implementation challenges of optical networks, present and future communications professionals need a convenient, one-stop source for the relevant fundamentals, technical details, and applications. The Handbook of Optical Communication Networks provides that information in a presentation that is structured for fast access, organized for optimum utility, and packed with the insights of true leaders in the field.

This book focuses on the new advances in the field of optical fiber technology. It covers variety of topics about different aspects of this technology. The book includes study in the fields of fiber lasers, and optical fiber applications in spectroscopy, measurement, imaging and medical. It aims to facilitate industrial users and researchers in their research activities by highlighting ongoing developments in optical fiber applications.

This book compiles work which presents recent developments and progress made in optical fiber technology regarding newest range of optical communication, system and network, sensor, laser, measurement, characterization and devices. It gives emphasis to topics such as fiber lasers and fiber optic sensors, fiber measurement techniques, and fiber optic devices on silicon chips. The chapters within this book have been contributed by prominent academicians and scientists involved in state of the art research in the field of photonics. This work will serve as a reference for readers from both academics and industrial backgrounds.

All recent discoveries and explorations related to fiber optical sensors technology in the recent past have been thoroughly discussed in this book. This book provides a detailed study about latest developments of the subject, essential propositions of varied sensor types, their role in structural health monitoring and evolution of varied physical, chemical and biological criteria. By presenting various advanced styles of sensing and systems, and by depicting latest evolvements in fiber Bragg-grating, reflectometry and interfometry based sensors; the book highlights the improvement and growth of fiber optics sensors. This book successfully unites academicians and practitioners in an overall observation of the subject. This book can play a pivotal role by providing the required information to scientists working and teaching, 'optical fiber sensor technology' and it can also be used by industrialists who need to update themselves with modern and recent progresses in the field.

This book includes of a compilation of valuable information contributed by distinct veterans from across the globe, elucidating the recent research trends in both short- and long-period fiber grating technology. It is primarily intended for researchers already engaged in this area, but it is also useful for anybody with a scientific background who is interested in an up-to-date analysis of the current growth in this domain. It will also prove to be useful for engineers and scientists who have become recently involved in this field. The aim of this book is to examine the present research in this area, displaying the current progresses in the field of fiber gratings.

This book provides an in-depth treatment of both linear fiber-optic systems and their key enabling devices. It presents a concise but rigorous treatment of the theory and practice of analog (linear) fiber-optics links and systems that constitute the foundation of Hybrid Fiber Coax infrastructure in present-day CATV distribution and cable modem Internet access. Emerging applications in remote fiber-optic feed for free-space millimeter wave enterprise campus networks are also described. Issues such as dispersion and interferometric noise are treated quantitatively, and means for mitigating them are explained. This broad but concise text will thus be invaluable not only to students of fiber-optics communication but also to practicing engineers. To the second edition of this book important new aspects of linear fiber-optic transmission technologies are added, such as high level system architectural issues, algorithms for deriving the optimal frequency assignment, directly modulated or externally modulated laser transmitters and the use of Erbium-doped fiber amplifier (EDFA) in linear fiber optic systems. Significant examples of field deployed military systems enabled by linear fiber optic links are described in an appendix.

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