Download or read book Signal Processing Techniques for Optical Performance Monitoring in Dynamic Fiber optic Networks written by Faisal Nadeem Khan and published by . This book was released on 2011 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digital Signal Processing For High speed Optical Communication written by Jianjun Yu and published by World Scientific Publishing Company. This book was released on 2018-03-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing tendency to integrate optical communication with wireless communication to satisfy continuously emerging (new) data communication demands. Thus, optical-wireless-integrated access networks and transmission systems, as well as LED-based visible light communication are attracting ever increasing research interest. Digital signal processing (DSP) is one new technology for optical transmission. As such this book is designed to pave the way to the better understanding of the deployment of DSP in optical fiber communication systems.Digital Signal Processing for High-Speed Optical Communication covers a wide area of DSP topics in optical communications, and describes state-of-the-art digital signal processing techniques for high-speed optical communication. In this book, numerous advanced digital signal processing techniques aiming at the promotion of the capacity increase and performance improvement of optical or optical-wireless communication systems and networks are presented and explained. Coverage includes new technologies, optical filter with MLSE, and new pre-coding and pre-equalization applicable to single-carrier and multi-carrier, direct-detection and coherent-detection optical commutation systems and networks.

Download or read book Enabling Technologies for High Spectral efficiency Coherent Optical Communication Networks written by Xiang Zhou and published by John Wiley & Sons. This book was released on 2016-04-29 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks Presents the technological advancements that enable high spectral-efficiency and high-capacity fiber-optic communication systems and networks This book examines key technology advances in high spectral-efficiency fiber-optic communication systems and networks, enabled by the use of coherent detection and digital signal processing (DSP). The first of this book’s 16 chapters is a detailed introduction. Chapter 2 reviews the modulation formats, while Chapter 3 focuses on detection and error correction technologies for coherent optical communication systems. Chapters 4 and 5 are devoted to Nyquist-WDM and orthogonal frequency-division multiplexing (OFDM). In chapter 6, polarization and nonlinear impairments in coherent optical communication systems are discussed. The fiber nonlinear effects in a non-dispersion-managed system are covered in chapter 7. Chapter 8 describes linear impairment equalization and Chapter 9 discusses various nonlinear mitigation techniques. Signal synchronization is covered in Chapters 10 and 11. Chapter 12 describes the main constraints put on the DSP algorithms by the hardware structure. Chapter 13 addresses the fundamental concepts and recent progress of photonic integration. Optical performance monitoring and elastic optical network technology are the subjects of Chapters 14 and 15. Finally, Chapter 16 discusses spatial-division multiplexing and MIMO processing technology, a potential solution to solve the capacity limit of single-mode fibers. Contains basic theories and up-to-date technology advancements in each chapter Describes how capacity-approaching coding schemes based on low-density parity check (LDPC) and spatially coupled LDPC codes can be constructed by combining iterative demodulation and decoding Demonstrates that fiber nonlinearities can be accurately described by some analytical models, such as GN-EGN model Presents impairment equalization and mitigation techniques Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks is a reference for researchers, engineers, and graduate students.

Download or read book Time Stretch Accelerated Instrumentation for High Speed Signal Analysis and Ultra fast Device Characterization written by Cejo Konuparamban Lonappan and published by . This book was released on 2018 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internet traffic has been growing exponentially due to the increasing popularity of bandwidth-hungry applications among mobile and cloud platforms, as well as the increased penetration of broadband technologies. The advancements in fiber optic communication technology has enabled the scaling of data rates to very high bandwidths to support the increasing global data traffic growth. This has come at the cost of making the optical network infrastructure too rigid to changes in demand, difficult to service and maintain, and energy inefficient. The next-generation of optical networks needs to be more agile so that it can dynamically scale network resources based on demand, identify and locate impairments in the network automatically, be resilient to network disaster and cybersecurity attacks, and be more energy efficient. This necessitates the development of software-defined networking at the physical layer of optical networks with rapid optical performance monitoring capabilities to be able to dynamically modify the network and its parameters to ensure high quality of service and energy efficiency. Rapid optical performance monitoring requires high-throughput instruments that can analyze high-speed optical signals accurately with low power consumption. The increasing demand for higher data bandwidth is leading the communication industry to increase the operating frequency of components and systems. Performing accurate and rapid measurements of the various characteristics of electronic, electro-optic, and opto-electronic devices, modules, and systems at these high bandwidths is very challenging. With increasing operating frequencies, the conventional test equipment cost, size and power consumption also scales up proportionately. Longer test times to achieve increased accuracy would result in significantly higher test costs, hence innovations in faster testing of high bandwidth components and systems is a breakthrough that the test engineering community is anxiously awaiting for. Electronic digitizers are an integral part of modern digital instrumentation systems. The resolution and speed limits of analog-to-digital converters presents the bottleneck in the development of high-throughput, high bandwidth instruments. Photonic time-stretch technology boosts effective bandwidth and sampling rate of the conventional electronic digitizers by 50 to 100 times by slowing down the high bandwidth signals prior to digitization and signal processing. Time-stretch technology is a fundamentally different approach to broadband digitization technology. Instead of increasing the speed of back-end analog-to-digital converters and digital signal processors to keep up with ever accelerating data rates, time-stretch slows down incoming signals before digitization, reducing the analog bandwidth of the signal. By employing this technique, lower speed, higher resolution, more energy efficient digitizers and signal processors can be used to capture and process full wide-band signals in real-time. In addition, the time-stretch architecture scales with digitizer and signal processor technology, continually improving in resolution, speed, and energy efficiency as the electronic back-end technology progresses. In the first part of this dissertation, I discuss my work in the development of a novel photonic time-stretch accelerated processor for in-service, real-time burst-mode optical performance monitoring to enable the implementation of agile optical networks. This instrument with an equivalent 2 Terabit/s burst mode processing capability measures the bit-error rate, an important metric for the quality of transmission, of 40 Gigabit/s data with a 28 microsecond acquisition time. With a low power consumption of 50 W, this instrument has a real-time burst sampling throughput of 250 Giga-samples/s using an electronic digitizer with only 2.5 Giga-samples/s sampling rate at 2 GHz analog bandwidth. The measured bit-error rate is transmitted as a feedback to the software-defined networking controller to automatically take corrective actions in case of impairments or network disasters. I also discuss the various demonstrations using this instrument such as in-service analysis of streaming video packets at 10 Gigabit/s on a commercial optical networking platform, characterization of various non-linear effects in optical fiber networks, and an ultra-fast instantaneous frequency measurement system. In the second part of this dissertation, I discuss the development of an innovative high-performance single-shot network analyzer employing photonic time-stretch for extremely fast frequency response measurement of high bandwidth electronic, opto-electronic, and electro-optic devices, modules, and systems. This single-shot network analyzer has an effective sampling throughput of 2.5 Tera-samples/s at 40 GHz analog bandwidth. This instrument also features an extremely fast acquisition time of 27 nanosecond, a measurement jitter of 5.4 femtosecond, and power consumption of 50 W.

Download or read book Optical Performance Monitoring written by Calvin C. K. Chan and published by Academic Press. This book was released on 2010-02-11 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Digital Signal Processing In High Speed Optical Fiber Communication Principle and Application written by Jianjun Yu and published by Springer Nature. This book was released on 2020-07-06 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the principles and applications of optical fiber communication based on digital signal processing (DSP) for both single and multi-carrier modulation signals. In the context of single carrier modulation, it describes DSP for linear and nonlinear optical fiber communication systems, discussing all-optical Nyquist modulation signal generation and processing, and how to use probabilistic and geometrical shaping to improve the transmission performance. For multi-carrier modulation, it examines DSP-based OFDM signal generation and detection and presents 4D and high-order modulation formats. Lastly, it demonstrates how to use artificial intelligence in optical fiber communication. As such it is a useful resource for students, researches and engineers in the field of optical fiber communication.

Download or read book Improving Optical Performance Monitoring with Signal Processing written by Mei Li and published by . This book was released on 2008 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Fiber Telecommunications VIB written by Polina Bayvel and published by Elsevier Inc. Chapters. This book was released on 2013-05-11 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key question of current optical communications research is: how to maximize both capacity and transmission distance in future optical transmission networks by using spectrally-efficient modulation formats with coherent detection, and how can digital signal processing aid in this quest? There is a clear trade-off between spectral efficiency and transmission distance, since the more spectrally-efficient modulation formats are also more susceptible to optical fiber nonlinearities. This chapter illustrates the application of nonlinear backpropagation to mitigate for both linear and nonlinear transmission impairments for a range of modulation formats, at varying symbol-rates and wavelength spacings, and also by varying the signal bandwidth which is backpropagated. The basics of coherent receiver structure and DSP algorithms for chromatic dispersion compensation, equalization and phase recovery of PDM-BPSK, PS-QPSK, PDM-QPSK, PDM-8PSK, PDM-8QAM, and PDM-16QAM are reviewed and the effectiveness of the nonlinearity compensating DSP based on digital backpropagation is explored. This chapter includes a comprehensive literature review of the key experimental demonstrations of nonlinearity-compensating DSP.

Download or read book Optical Signal Processing written by Joseph Horner and published by Elsevier. This book was released on 2012-12-02 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Signal Processing is a collection of synopses of the works of many experts in the different fields of optical signal processing. The book also includes systems or algorithms that have been successfully tried and used. The monograph is divided into seven parts. Part I discusses color image processing and white-light Fourier transformations, while Part II covers topics related to pattern recognition such as optical feature extraction and unconventional correlators. Part III deals with temporal signal processing and its related optical architectures, acoustooptic synthetic aperture radar processors, and acoustooptic signal processors. Part IV tackles nonlinear optical processors and waveguide devices. Part V discusses optical and tomographic transformation. Part VI deals with optical numeric processing, optical linear algebra processors, and related algorithm and software. Part VII talks about devices and components and their applications such as fiber-optic delay-line signal processors and spatial light modulators. The text is recommended for engineers and scientists in the field of optical signal processing, especially those who would like to know more of its advancements.

Download or read book Fiber Optic Measurement Techniques written by Rongqing Hui and published by Academic Press. This book was released on 2022-11-18 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 The 2nd edition of this successful reference has been extensively updated (with 150 new pages) to reflect the advances in the field since publication in 2008 and includes: A new chapter on fiber-based optical sensors and spectroscopy techniques A new chapter on measurement uncertainty and error analysis Fiber Optic Measurement Techniques 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. 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

Download or read book Optical Signal Processing by Silicon Photonics written by Jameel Ahmed and published by Springer Science & Business Media. This book was released on 2013-09-14 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this book is to make respective graduate students understand the nonlinear effects inside SOI waveguide and possible applications of SOI waveguides in this emerging research area of optical fibre communication. This book focuses on achieving successful optical frequency shifting by Four Wave Mixing (FWM) in silicon-on-insulator (SOI) waveguide by exploiting a nonlinear phenomenon.

Download or read book Digital Signal Processing for High Speed Optical Communication written by Jianjun Yu and published by . This book was released on 2018 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digital Processing written by Le Nguyen Binh and published by CRC Press. This book was released on 2017-07-12 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: With coherent mixing in the optical domain and processing in the digital domain, advanced receiving techniques employing ultra-high speed sampling rates have progressed tremendously over the last few years. These advances have brought coherent reception systems for lightwave-carried information to the next stage, resulting in ultra-high capacity global internetworking. Digital Processing: Optical Transmission and Coherent Receiving Techniques describes modern coherent receiving techniques for optical transmission and aspects of modern digital optical communications in the most basic lines. The book includes simplified descriptions of modulation techniques for such digital transmission systems carried by light waves. It discusses the basic aspects of modern digital optical communications in the most basic lines. In addition, the book covers digital processing techniques and basic algorithms to compensate for impairments and carrier recovery, as well as noise models, analysis, and transmission system performance.

Download or read book Impact of Nonlinearities on Fiber Optic Communications written by Shiva Kumar and published by Springer Science & Business Media. This book was released on 2011-03-23 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the recent progress in fiber-optic communication systems with a main focus on the impact of fiber nonlinearities on the system performance. Over the past few years, there has been significant progress in coherent communication systems mainly because of the advances in digital signal processing techniques. This has led to renewed interest in fiber linear and nonlinear impairments and techniques to mitigate them in electrical domain. In this book, the reader will find all the important topics of fiber optic communication systems in one place with in-depth coverage by the experts of each subtopics. Pioneers from each of the sub-topics have been invited to contribute. Each chapter will have a section on fundamentals, review of literature survey and the recent developments. The reader will benefit from this approach since many of the conference proceedings and journal articles mainly focus on the authors’ research work without spending space on preliminaries.

Download or read book Multi impairment and Multi channel Optical Performance Monitoring written by L. Meflah and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Signal Processing for Optical Performance Monitoring and Impairment Mitigation written by Wei Chen and published by . This book was released on 2006 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intelligent Systems for Optical Networks Design Advancing Techniques written by Kavian, Yousef S. and published by IGI Global. This book was released on 2013-03-31 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the increased demand for high-speed communication creates an interest in the development of optical networks, intelligent all optical networks have emerged as the next generation for reliable and fast connections. Intelligent Systems for Optical Networks Design: Advancing Techniques is a comprehensive collection of research focused on theoretical and practical aspects of intelligent methodologies as applied to real world problems. This reference source is useful for research and development engineers, scholars, and students interested in the latest development in the area of intelligent systems for optical networks design.