Current Research And Development In Optical Fiber Communications In China

Current Research And Development In Optical Fiber Communications In China PDF Author: Qiming Wang
Publisher: World Scientific
ISBN: 9814498823
Category : Technology & Engineering
Languages : en
Pages : 141

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Book Description
In the last decade, China has experienced one of the fastest economic growth in the world. Leading this enormous growth is the development of telecommunications that has a growth rate far exceeding that of its GNP. With such fast growth, China will have the largest telecommunication network with 420 million lines by 2010. The backbone of the national telecom network in China is primarily optical fiber cables today.This book contains a selection of reports reviewing the progress of the research and development in optoelectronics and optical fiber communications in China. The first four papers focus on the current development in optical fiber communications with particular interest in studies of soliton transmission and optical WDM transmission experiments. The next four papers describe the research results on quantum well lasers, bi-stable lasers, electro-absorption modulators and SEED, and photonic integrated devices. Fiber ring lasers using EDFA and the ASE noise in the PIN receiver due to EDFA are discussed in the next two papers, respectively. The last two papers describe the research activities and results of the development of the GaAs ICs for high speed lighwave systems, and their characterization using optical sampling techniques. The contents included in this book may be regarded as the epitome of the current status of research in this field in mainland China.

Current Research And Development In Optical Fiber Communications In China

Current Research And Development In Optical Fiber Communications In China PDF Author: Qiming Wang
Publisher: World Scientific
ISBN: 9814498823
Category : Technology & Engineering
Languages : en
Pages : 141

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Book Description
In the last decade, China has experienced one of the fastest economic growth in the world. Leading this enormous growth is the development of telecommunications that has a growth rate far exceeding that of its GNP. With such fast growth, China will have the largest telecommunication network with 420 million lines by 2010. The backbone of the national telecom network in China is primarily optical fiber cables today.This book contains a selection of reports reviewing the progress of the research and development in optoelectronics and optical fiber communications in China. The first four papers focus on the current development in optical fiber communications with particular interest in studies of soliton transmission and optical WDM transmission experiments. The next four papers describe the research results on quantum well lasers, bi-stable lasers, electro-absorption modulators and SEED, and photonic integrated devices. Fiber ring lasers using EDFA and the ASE noise in the PIN receiver due to EDFA are discussed in the next two papers, respectively. The last two papers describe the research activities and results of the development of the GaAs ICs for high speed lighwave systems, and their characterization using optical sampling techniques. The contents included in this book may be regarded as the epitome of the current status of research in this field in mainland China.

Optical Filter Design and Analysis

Optical Filter Design and Analysis PDF Author: Christi K. Madsen
Publisher: Wiley-Interscience
ISBN: 9780471183730
Category : Science
Languages : en
Pages : 432

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Book Description
A Unique, Cutting-Edge Approach to Optical Filter Design With more and more information being transmitted over fiber-optic lines, optical filtering has become crucial to the advanced functionality of today's communications networks. Helping researchers and engineers keep pace with this rapidly evolving technology, this book presents digital processing techniques for optical filter design. This higher-level approach focuses on filter characteristics and enables readers to quickly calculate the filter response as well as tackle larger and more complex filters. The authors incorporate numerous theoretical and experimental results from the literature and discuss applications to a variety of systems-including the new wavelength division multiplexing (WDM) technology, which is fast becoming the preferred method for system upgrade and expansion. Special features of this book include: * The theory underlying various architectures that can approximate any filter function * Filter design techniques applicable to a broad range of materials systems-from silica to fiber to microelectromechanical (MEM) systems * Design examples relevant to filters for WDM systems and planar waveguide devices * 250 figures as well as problem sets for use in graduate-level studies

NEC Research & Development

NEC Research & Development PDF Author:
Publisher:
ISBN:
Category : Electric apparatus and appliances
Languages : en
Pages : 1336

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Book Description


Fundamentals of Optical Waveguides

Fundamentals of Optical Waveguides PDF Author: Katsunari Okamoto
Publisher: Elsevier
ISBN: 0128156023
Category : Technology & Engineering
Languages : en
Pages : 736

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Book Description
Now in its Third Edition, Fundamentals of Optical Waveguides continues to be an essential resource for any researcher, professional or student involved in optics and communications engineering. Any reader interested in designing or actively working with optical devices must have a firm grasp of the principles of lightwave propagation. Katsunari Okamoto continues to present this difficult technology clearly and concisely with several illustrations and equations. Optical theory encompassed in this reference includes coupled mode theory, nonlinear optical effects, finite element method, beam propagation method, staircase concatenation method, along with several central theorems and formulas. Silicon photonics devices such as coupled resonator optical waveguides (CROW), lattice-form filters, and AWGs are also fully described. This new edition gives readers not only a thorough understanding the silicon photonics devices for on-chip photonic network, but also the capability to design various kinds of devices. - Features recent advances in PLC and silicon photonic devices - Provides an understanding of silicon photonics and how to apply this knowledge to system design - Describes numerical analysis methods such as BPM and FEM

IBM Journal of Research and Development

IBM Journal of Research and Development PDF Author:
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 768

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Book Description


Optically Amplified WDM Networks

Optically Amplified WDM Networks PDF Author: John Zyskind
Publisher: Academic Press
ISBN: 0080960987
Category : Technology & Engineering
Languages : en
Pages : 483

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Book Description
With the advent of wavelength routing and dynamic, reconfigurable optical networks, new demands are being made in the design and operation of optical amplifiers. This book provides, for the first time, a comprehensive review of optical amplifier technology in the context of these recent advances in the field. It demonstrates how to manage the trade-offs between amplifier design, network architecture and system management and operation. The book provides an overview of optical amplifiers and reconfigurable networks before examining in greater detail the issues of importance to network operators and equipment manufacturers, including 40G and 100G transmission. Optical amplifier design is fully considered, focusing on fundamentals, design solutions and amplifier performance limitations. Finally, the book discusses other emerging applications for optical amplifiers such as optical networks for high data rate systems, free space systems, long single span links and optical digital networks. This book will be of great value to R&D engineers, network and systems engineers, telecommunications service providers, component suppliers, industry analysts, network operators, postgraduate students, academics and anyone seeking to understand emerging trends in optical networks and the consequent changes in optical amplifier design, features and applications. Provides an in depth and focused review of the new reconfigurable network architecture and its impact on optical amplifiers Addresses 40G and 100G transmission and networking Written by experts in the field with deep technical knowledge and practical experience of commercial practice and concerns

Optical Fibers Research Advances

Optical Fibers Research Advances PDF Author: Jürgen C. Schlesinger
Publisher: Nova Publishers
ISBN: 9781600218668
Category : Technology & Engineering
Languages : en
Pages : 402

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Book Description
An optical fibre is a glass or plastic fibre designed to guide light along its length by confining as much light as possible in a propagating form. In fibre with large core diameter, the confinement is based on total internal reflection. In smaller diameter core fibres, (widely used for most communication links longer than 200 meters) the confinement relies on establishing a waveguide. Fibre optics is the overlap of applied science and engineering concerned with such optical fibres. Optical fibres are widely used in fibre-optic communication, which permits transmission over longer distances and at higher data rates than other forms of wired and wireless communications. They are also used to form sensors, and in a variety of other applications. The term optical fibre covers a range of different designs including graded-index optical fibres, step-index optical fibres, birefringent polarisation-maintaining fibres and more recently photonic crystal fibres, with the design and the wavelength of the light propagating in the fibre dictating whether or not it will be multi-mode optical fibre or single-mode optical fibre. Because of the mechanical properties of the more common glass optical fibres, special methods of splicing fibres and of connecting them to other equipment are needed. Manufacture of optical fibres is based on partially melting a chemically doped pre-form and pulling the flowing material on a draw tower. Fibres are built into different kinds of cables depending on how they will be used. This new book presents the latest research in the field.

An Assessment of Federal Funding for Private Research and Development

An Assessment of Federal Funding for Private Research and Development PDF Author: United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Subcommittee on Federal Financial Management, Government Information, and International Security
Publisher:
ISBN:
Category : Political Science
Languages : en
Pages : 228

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Book Description


Undersea Fiber Communication Systems

Undersea Fiber Communication Systems PDF Author: José Chesnoy
Publisher: Elsevier
ISBN: 0080492371
Category : Science
Languages : en
Pages : 581

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Book Description
DescriptionThis book provides a detailed overview of the evolution of undersea communications systems, with emphasis on the most recent breakthroughs of optical submarine cable technologies based upon Wavelength Division Multiplexing, optical amplification, new-generation optical fibers, and high-speed digital electronics. The role played by submarine-communication systems in the development of high-speed networks and associated market demands for multiplying Internet and broadband services is also covered.Importance of This TopicThis book will fill the gap between highly specialized papers from large international conferences and broad-audience technology review updates. The book provides a full overview of the evolution in the field and conveys the dimension of the large undersea projects. In addition, the book uncovers the myths surrounding marine operations and installations in that domain, which have remained known so far to only very few specialists.

DWDM Fundamentals, Components, and Applications

DWDM Fundamentals, Components, and Applications PDF Author: Jean-Pierre Laude
Publisher: Artech House Publishers
ISBN:
Category : Computers
Languages : en
Pages : 312

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Book Description
This leading-edge resource provides you with comprehensive, up-to-date coverage of the principles, technologies, standards and applications of Dense Wavelength Division Multiplexing (DWDM). Essential reading for technical and business professionals alike, this volume will enable you to: understand how DWDM components, devices and networks operate, examine the configuration and design trade-offs of current DWDM components and systems, assess the latest standards for optical network management, discover recent technological developments, and decide the direction and most promising areas for future R& D in the field.