January 26, 2021

Download Ebook Free Optical Performance Monitoring

Optical Performance Monitoring

Optical Performance Monitoring
Author : Calvin C. K. Chan
Publisher : Academic Press
Release Date : 2010-02-11
Category : Technology & Engineering
Total pages :512
GET BOOK

This in-depth, detailed reference presents for the first time a comprehensive treatment of recent advances in optical performance monitoring. Written by leading experts in the field, the book provides an overview of recent developments in the area and the role of OPM in future optical systems and networks. Detailed discussions of various advanced techniques are provided to illustrate their principles. FEATURES: Presents the principles and applications of advanced OPM techniques, together with a comparative evaluation of their effectiveness in monitoring individual parameters, such as optical signal-to-noise ratio, chromatic dispersion, and polarization mode dispersion Explains the principles of the various advanced optical signal processing techniques and their applications in OPM Examines the role and applications of OPM in optical networks, including optical transport networks, coherent optical systems, and long-haul optical transmission systems Discusses the current approaches of OPM in the global standard SDH/SONET This book is ideal for technical professionals and researchers who want to understand and evaluate advanced techniques in OPM and their impact on the practical design of next-generation optical systems and networks. Provides a thorough and detailed discussion of the latest optical performance monitoring (OPM) techniques and their applications, presenting a comparative analysis of each method Contains high-quality technical contributions from leading experts, covering both principles and practical aspects of advanced OPM techniques Addresses challenges and opportunities related to OPM in next-generation reconfigurable optical systems and networks

Multi-impairment and Multi-channel Optical Performance Monitoring

Multi-impairment and Multi-channel Optical Performance Monitoring
Author : L. Meflah
Publisher : Unknown
Release Date : 2008
Category :
Total pages :129
GET BOOK

Next generation optical networks will evolve from static to dynamically reconfigurable architectures to meet the increasing bandwidth and service requirements. The benefits of dynamically reconfigurable networks (improved operations, reduced footprint and cost) have introduced new challenges, in particular the need for complex management which has put pressure on the engineering rules and transmission margins. This has provided the main drive to develop new techniques for optical performance monitoring (OPM) without using optical-to-electrical-to-optical conversions. When considering impairments due to chromatic dispersion in dynamic networks, each channel will traverse a unique path through the network thus the channels arriving at the monitoring point will, in general, exhibit different amounts of residual dispersion. Therefore, in a dynamic network it is necessary to monitor all channels individually to quantify the degradation, without the requirement of knowing the data path history. The monitoring feature can be used in conjunction with a dispersion compensation device which can either be optical or electrical or used to trigger real-time alarms for traffic re-routing. The proposed OPM technique is based on RF spectrum analysis and used for simultaneous and independent monitoring of power, chromatic dispersion (CD), polarisation mode dispersion (PMD) and optical signal-to-noise ratio (OSNR) in 40Gbit/s multi0channel systems. An analytical model is developed to describe the monitoring technique which allows the prediction of the measurement range. The experimental results are given for group velocity dispersion (GVD), differential group delay (DGD) and OSNR measurements. This technique is based on electro-optic down-conversion that simultaneously down-converts multiple channels, sharing the cost of the key components over multiple channels and making it cost effective for multi-channel operation. The measurement range achieved with this method is equal to 4742±100ps/nm for GVD, 200±4ps for DGD and 25±1dB for OSNR. To the knowledge of the author, these dispersion monitoring ranges are the largest reported to date for the bit-rate of 40Gbit/s with amplitude modulation formats.

Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks

Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks
Author : Xiang Zhou,Chongjin Xie
Publisher : John Wiley & Sons
Release Date : 2016-04-11
Category : Science
Total pages :648
GET BOOK

Since the revival of coherent optical communications in 2006, significant progress has been made in the field. For example, spectral efficiency of optical communication systems has been increased from 0.8 b/s/Hz to over 14.0 b/s/Hz in a single mode fiber. This progress is the result of improved technologies such as advanced modulation, digital coherent detection, coding, and digital signal processing. The first part of the book is devoted to advanced modulation, coding, and multiplexing technologies. Various linear and nonlinear impairments and their digital mitigation methods are presented, followed by impairment-tolerant and hardware-efficient symbol and carrier recovery algorithms, plus issues and challenges in real-time implementation of high-speed digital coherent transceivers. The authors reveal important progress in photonic integration and performance monitoring, and look beyond WDM (wavelength division multiplexing) to space-division-multiplexing (SDM) based technologies, which can improve fiber and network capacity.

Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks

Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks
Author : Xiang Zhou,Chongjin Xie
Publisher : John Wiley & Sons
Release Date : 2016-04-11
Category : Science
Total pages :648
GET BOOK

Since the revival of coherent optical communications in 2006, significant progress has been made in the field. For example, spectral efficiency of optical communication systems has been increased from 0.8 b/s/Hz to over 14.0 b/s/Hz in a single mode fiber. This progress is the result of improved technologies such as advanced modulation, digital coherent detection, coding, and digital signal processing. The first part of the book is devoted to advanced modulation, coding, and multiplexing technologies. Various linear and nonlinear impairments and their digital mitigation methods are presented, followed by impairment-tolerant and hardware-efficient symbol and carrier recovery algorithms, plus issues and challenges in real-time implementation of high-speed digital coherent transceivers. The authors reveal important progress in photonic integration and performance monitoring, and look beyond WDM (wavelength division multiplexing) to space-division-multiplexing (SDM) based technologies, which can improve fiber and network capacity.

Optics for AI and AI for Optics

Optics for AI and AI for Optics
Author : Jinlong Wei,Alan Pak Tao Lau,Lilin Yi,Elias Giacoumidis,Qixiang Cheng
Publisher : MDPI
Release Date : 2020-06-23
Category : Technology & Engineering
Total pages :162
GET BOOK

Artificial intelligence is deeply involved in our daily lives via reinforcing the digital transformation of modern economies and infrastructure. It relies on powerful computing clusters, which face bottlenecks of power consumption for both data transmission and intensive computing. Meanwhile, optics (especially optical communications, which underpin today’s telecommunications) is penetrating short-reach connections down to the chip level, thus meeting with AI technology and creating numerous opportunities. This book is about the marriage of optics and AI and how each part can benefit from the other. Optics facilitates on-chip neural networks based on fast optical computing and energy-efficient interconnects and communications. On the other hand, AI enables efficient tools to address the challenges of today’s optical communication networks, which behave in an increasingly complex manner. The book collects contributions from pioneering researchers from both academy and industry to discuss the challenges and solutions in each of the respective fields.

Understanding Fiber Optics

Understanding Fiber Optics
Author : Jeff Hecht
Publisher : Jeff Hecht
Release Date : 2015-03-31
Category : Technology & Engineering
Total pages :800
GET BOOK

A tutorial introduction to fiber optics, which explains fundamental concepts of fiber optics, components and systems with minimal math. With more than 100,000 copies in print, Understanding Fiber Optics has been widely used in the classroom, for self study, and in corporate training since the first edition was published in 1987. This is a reprint of the 5th edition, originally published by Pearson Education and now available at low cost from Laser Light Press.

Optical Fiber Telecommunications VA

Optical Fiber Telecommunications VA
Author : Tingye Li,Alan E. Willner,Ivan Kaminow
Publisher : Academic Press
Release Date : 2008-02-22
Category : Technology & Engineering
Total pages :944
GET BOOK

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics. For nearly three decades, the OFT series has served as the comprehensive primary resource covering progress in the science and technology of optical fiber telecom. It has been essential for the bookshelves of scientists and engineers active in the field. OFT V provides updates on considerable progress in established disciplines, as well as introductions to new topics. [OFT V]... generates a value that is even higher than that of the sum of its chapters. Herwig Kogelnik, Vice President Adjunct, Bell Labs, Alcatel-Lucent ... is a comprehensive and authoritative coverage of the latest research advances and development trends in the field, while upholding the highest standards of scholarly exposition and practical perspective. The wealth of material on innovative technologies and advanced applications will serve as an important and timely information resource ... for the advancement of telecommunications world-wide. Leping Wei, CTO, China Telecom Lightwave systems constitute the nervous system of the industrial world and continue to evolve as innovations are introduced with enormous economic impact. The editors have very skillfully brought together authoritative chapters written by well known experts, encompassing new technologies that are enabling the rapid advances to their commercial deployment. This is a "must-have" book ... Henry Kressel, Managing Director, Warburg Pincus Anyone ... will want to have a copy of this latest edition ... which carries on the tradition of bringing together a wonderful collection of authors, world-renowned experts all, to discuss the most important areas of this rapidly changing technology. ... this volume has evolved to include, not only updates of previous topics, but also considerably more discussion of networks and network services. Donald B. Keck, Corning, Inc. (retired) Much has happened since the last edition. ROADM-based metro networks are being widely deployed, optical monitoring is becoming essential, new modulation formats are enabling efficient bandwidth utilization, and deployed FTTH has 1 Gbit/s shared rates. All these ... are expertly reviewed by an impressive set of authors, each highly active, well-known and respected. In all ... a timely, highly valuable, well-written and comprehensive view presented by the world's experts. Rod C. Alferness, Chief Scientist, Bell Labs Research, Alcatel-Lucent * All the latest technologies and techniques for developing future components and systems * Edited by two winners of the OSA/IEEE John Tyndal award and a President of IEEE Lasers and Electro-optics Society * Written by leading experts in the field, it is the most authoritative and comprehensive reference on optical engineering the market

Fiber Optic Measurement Techniques

Fiber Optic Measurement Techniques
Author : Rongqing Hui,Maurice O'Sullivan
Publisher : Academic Press
Release Date : 2009-01-21
Category : Technology & Engineering
Total pages :672
GET BOOK

Fiber Optic Measurement Techniques is an indispensable collection of key optical measurement techniques essential for developing and characterizing today’s photonic devices and fiber optic systems. The book gives comprehensive and systematic descriptions of various fiber optic measurement methods with the emphasis on the understanding of optoelectronic signal processing methodologies, helping the reader to weigh up the pros and cons of each technique and establish their suitability for the task at hand. Carefully balancing descriptions of principle, operations and optoelectronic circuit implementation, this indispensable resource will enable the engineer to: Understand the implications of various measurement results and system performance qualifications Characterize modern optical systems and devices Select optical devices and subsystems in optical network design and implementation Design innovative instrumentations for fiber optic systems This book brings together in one volume the fundamental principles with the latest techniques, making it a complete resource for the optical and communications engineer developing future optical devices and fiber optic systems. "Optical fiber communication systems and networks constitute the core of the telecom infrastructure of the information society worldwide. Accurate knowledge of the properties of the contituent components, and of the performance of the subsystems and systems must be obtained in order to ensure reliable transmission, distribution, and delivery of information. This book is an authoritative and comprehensive treatment of fiber-optic measurement techniques, including not only fundamental principles and methodologies but also various instrumentations and practical implementations. It is an excellent up-to-date resource and reference for the academic and industrial researcher as well as the field engineer in manufacturing and network operations." –Dr. Tingye Li, AT&T Labs (retired) Rongqing Hui received his PhD in Electrical Engineering from Politecnico di Torino, Italy in 1993. He is currently a tenured professor in the department of Electrical Engineering and Computer Science at the University of Kansas. He has published more than 90 refereed technical papers in the area of fiber-optic communications and holds 13 patents. Dr. Hui currently serves as an Associate Editor of IEEE Transactions on Communications. Maurice O'Sullivan has worked for Nortel for a score of years, at first in the optical cable business, developing factory-tailored metrology for optical fiber, but, in the main, in the optical transmission business developing, modeling and verifying physical layer designs & performance of Nortel's line and highest rate transmission product including OC-192, MOR, MOR+, LH1600G, eDCO and eDC40G. He holds a Ph.D. in physics (high resolution spectroscopy) from the University of Toronto, is a Nortel Fellow and has been granted more than 30 patents. The only book to combine explanations of the basic principles with latest techniques to enable the engineer to develop photonic systems of the future Careful and systematic presentation of measurement methods to help engineers to choose the most appropriate for their application The latest methods covered, such as real-time optical monitoring and phase coded systems and subsystems, making this the most up-to-date guide to fiber optic measurement on the market

An Introduction to Distributed Optical Fibre Sensors

An Introduction to Distributed Optical Fibre Sensors
Author : Arthur H. Hartog
Publisher : CRC Press
Release Date : 2017-05-25
Category : Science
Total pages :442
GET BOOK

This book explains physical principles, unique benefits, broad categories, implementation aspects, and performance criteria of distributed optical fiber sensors (DOFS). For each kind of sensor, the book highlights industrial applications, which range from oil and gas production to power line monitoring, plant and process engineering, environmental monitoring, industrial fire and leakage detection, and so on. The text also includes a discussion of such key areas as backscattering, launched power limitations, and receiver sensitivity, as well as a concise historical account of the field’s development.

Optical Fiber Telecommunications IV-A

Optical Fiber Telecommunications IV-A
Author : Ivan Kaminow,Tingye Li
Publisher : Elsevier
Release Date : 2002-05-22
Category : Science
Total pages :876
GET BOOK

Volume IVA is devoted to progress in optical component research and development. Topics include design of optical fiber for a variety of applications, plus new materials for fiber amplifiers, modulators, optical switches, light wave devices, lasers, and high bit-rate electronics. This volume is an excellent companion to Optical Fiber Telecommunications IVB: Systems and Impairments (March 2002, ISBN: 0-12-3951739). - Fourth in a respected and comprehensive series - Authoritative authors from a range of organizations - Suitable for active lightwave R&D designers, developers, purchasers, operators, students, and analysts - Lightwave components reviewed in Volume A -Lightwave systems and impairments reviewed in Volume B - Up-to-the minute coverage

Photonics Components & SubSystems

Photonics Components & SubSystems
Author : Anonim
Publisher : Information Gatekeepers Inc
Release Date : 2021
Category :
Total pages :129
GET BOOK

Bearing Capacity of Roads, Railways and Airfields

Bearing Capacity of Roads, Railways and Airfields
Author : Andreas Loizos,Imad Al-Qadi,Tom Scarpas
Publisher : CRC Press
Release Date : 2017-07-20
Category : Technology & Engineering
Total pages :364
GET BOOK

Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.

Optical Fiber Telecommunications VB

Optical Fiber Telecommunications VB
Author : Ivan Kaminow,Tingye Li,Alan E. Willner
Publisher : Elsevier
Release Date : 2010-07-28
Category : Technology & Engineering
Total pages :928
GET BOOK

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics.

Current Developments in Optical Fiber Technology

Current Developments in Optical Fiber Technology
Author : Sulaiman Wadi Harun,Hamzah Arof
Publisher : BoD – Books on Demand
Release Date : 2013-06-13
Category : Technology & Engineering
Total pages :600
GET BOOK

This book is a compilation of works presenting recent advances and progress in optical fiber technology related to the next generation optical communication, system and network, sensor, laser, measurement, characterization and devices. It contains five sections including optical fiber communication systems and networks, plastic optical fibers technologies, fiber optic sensors, fiber lasers and fiber measurement techniques and fiber optic devices on silicon chip. Each chapter in this book is a contribution from a group of academicians and scientists from a prominent university or research center, involved in cutting edge research in the field of photonics. This compendium is an invaluable reference for researchers and practitioners working in academic institutions as well as industries.

SCIAMACHY - Exploring the Changing Earth’s Atmosphere

SCIAMACHY - Exploring the Changing Earth’s Atmosphere
Author : Manfred Gottwald,Heinrich Bovensmann
Publisher : Springer Science & Business Media
Release Date : 2010-12-08
Category : Science
Total pages :225
GET BOOK

SCIAMACHY, the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY, is a passive sensor for exploring the Earth’s atmosphere. It is part of the payload of the European Earth Observation mission ENVISAT, launched on 1 March 2002. SCIAMACHY observes absorption spectra of molecules from the UV (214 nm) to the short-wave infrared wavelength range (2386 nm) and derives the atmospheric composition – trace gases, aerosols, clouds – from these measurements. Having meanwhile successfully monitored and explored the Earth’s atmosphere for more than 8 years, new and exciting insights into the Earth-atmosphere system are obtained. The provided global data sets do not only cover greenhouse gases and pollutants in the troposphere or the ozone chemistry in the stratosphere but even reach up to the mesosphere and lower thermosphere. They contribute significantly to atmospheric physics and chemistry as well as climate change research. SCIAMACHY is one of the major current Earth Observation undertakings of Germany, The Netherlands and Belgium, accomplished in cooperation with the European Space Agency (ESA). Many scientific groups at various institutes in Europe and abroad were and are actively involved in the analysis of the data. This book is a comprehensive summary describing the entire SCIAMACHY mission – from the very first ideas to the current results. It illustrates how the measurements are performed, how the trace gas concentrations are derived from the measured spectra and how the unique data sets are used to improve our understanding of the changing Earth’s atmosphere. The targeted readership is not only the existing and potentially new SCIAMACHY data users from undergraduate student level up to researchers new in the fields of atmospheric chemistry and remote sensing, but anyone who is keen to learn about SCIAMACHY’s efforts to study the atmosphere and its responses to both, natural phenomena and anthropogenic effects.