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Author : Muzahim I. Azawe
Publisher :
ISBN 13 : 9789535107842
Total Pages : pages
Book Rating : 4.1/5 (78 download)
Download or read book Chaotic Dynamics of Semiconductor Lasers for Secure Optical Communication written by Muzahim I. Azawe and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Junji Ohtsubo
Publisher : Springer
ISBN 13 : 3319561383
Total Pages : 679 pages
Book Rating : 4.3/5 (195 download)
Download or read book Semiconductor Lasers written by Junji Ohtsubo and published by Springer. This book was released on 2017-05-03 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fascinating recent advances made concerning the chaos, stability and instability of semiconductor lasers, and discusses their applications and future prospects in detail. It emphasizes the dynamics in semiconductor lasers by optical and electronic feedback, optical injection, and injection current modulation. Applications of semiconductor laser chaos, control and noise, and semiconductor lasers are also demonstrated. Semiconductor lasers with new structures, such as vertical-cavity surface-emitting lasers and broad-area semiconductor lasers, are intriguing and promising devices. Current topics include fast physical number generation using chaotic semiconductor lasers for secure communication, development of chaos, quantum-dot semiconductor lasers and quantum-cascade semiconductor lasers, and vertical-cavity surface-emitting lasers. This fourth edition has been significantly expanded to reflect the latest developments. The fundamental theory of laser chaos and the chaotic dynamics in semiconductor lasers are discussed, but also for example the method of self-mixing interferometry in quantum-cascade lasers, which is indispensable in practical applications. Further, this edition covers chaos synchronization between two lasers and the application to secure optical communications. Another new topic is the consistency and synchronization property of many coupled semiconductor lasers in connection with the analogy of the dynamics between synaptic neurons and chaotic semiconductor lasers, which are compatible nonlinear dynamic elements. In particular, zero-lag synchronization between distant neurons plays a crucial role for information processing in the brain. Lastly, the book presents an application of the consistency and synchronization property in chaotic semiconductor lasers, namely a type of neuro-inspired information processing referred to as reservoir computing.
Author : Atsushi Uchida
Publisher : John Wiley & Sons
ISBN 13 : 352740869X
Total Pages : 669 pages
Book Rating : 4.5/5 (274 download)
Download or read book Optical Communication with Chaotic Lasers written by Atsushi Uchida and published by John Wiley & Sons. This book was released on 2012-02-13 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting with an introduction to the fundamental physics in chaotic instabilities in laser systems, this comprehensive and unified reference goes on to present the techniques and technology of synchronization of chaos in coupled lasers, as well as the many applications to lasers and optics, communications, security and information technology. Throughout, it presents the current state of knowledge, including encoding/decoding techniques, performance of chaotic communication systems, random number generation, and novel communication technologies.
Author : Deborah M. Kane
Publisher : John Wiley & Sons
ISBN 13 : 0470856203
Total Pages : 356 pages
Book Rating : 4.4/5 (78 download)
Download or read book Unlocking Dynamical Diversity written by Deborah M. Kane and published by John Wiley & Sons. This book was released on 2005-11-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of semiconductor lasers with optical feedback systems are driving rapid developments in theoretical and experimental research. The very broad wavelength-gain-bandwidth of semiconductor lasers combined with frequency-filtered, strong optical feedback create the tunable, single frequency laser systems utilised in telecommunications, environmental sensing, measurement and control. Those with weak to moderate optical feedback lead to the chaotic semiconductor lasers of private communication. This resource illustrates the diversity of dynamic laser states and the technological applications thereof, presenting a timely synthesis of current findings, and providing the roadmap for exploiting their future potential. * Provides theory-based explanations underpinned by a vast range of experimental studies on optical feedback, including conventional, phase conjugate and frequency- filtered feedback in standard, commercial and single-stripe semiconductor lasers * Includes the classic Lang-Kobayashi equation model, through to more recent theory, with new developments in techniques for solving delay differential equations and bifurcation analysis * Explores developments in self-mixing interferometry to produce sub-nanometre sensitivity in path-length measurements * Reviews tunable single frequency semiconductor lasers and systems and their diverse range of applications in sensing and optical communications * Emphasises the importance of synchronised chaotic semiconductor lasers using optical feedback and private communications systems Unlocking Dynamical Diversity illustrates all theory using real world examples gleaned from international cutting-edge research. Such an approach appeals to industry professionals working in semiconductor lasers, laser physics and laser applications and is essential reading for researchers and postgraduates in these fields.
Author : Olivier Spitz
Publisher : Springer Nature
ISBN 13 : 3030743071
Total Pages : 179 pages
Book Rating : 4.0/5 (37 download)
Download or read book Mid-infrared Quantum Cascade Lasers for Chaos Secure Communications written by Olivier Spitz and published by Springer Nature. This book was released on 2021-05-15 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mid-infrared domain is a promising optical domain because it holds two transparency atmospheric windows, as well as the fingerprint of many chemical compounds. Quantum cascade lasers (QCLs) are one of the available sources in this domain and have already been proven useful for spectroscopic applications and free-space communications. This thesis demonstrates how to implement a private free-space communication relying on mid-infrared optical chaos and this requires an accurate cartography of non-linear phenomena in quantum cascade lasers. This private transmission is made possible by the chaos synchronization of two twin QCLs. Chaos in QCLs can be generated under optical injection or external optical feedback. Depending on the parameters of the optical feedback, QCLs can exhibit several non-linear phenomena in addition to chaos. Similarities exist between QCLs and laser diodes when the chaotic dropouts are synchronized with an external modulation, and this effect is known as the entrainment phenomenon. With a cross-polarization reinjection technique, QCLs can generate all-optical square-waves. Eventually, it is possible to trigger optical extreme events in QCLs with tilted optical feedback. All these experimental results allow a better understanding of the non-linear dynamics of QCLs and will extend the potential applications of this kind of semiconductor lasers.
Author : Jia-Ming Liu
Publisher : Springer Science & Business Media
ISBN 13 : 038729788X
Total Pages : 392 pages
Book Rating : 4.3/5 (872 download)
Download or read book Digital Communications Using Chaos and Nonlinear Dynamics written by Jia-Ming Liu and published by Springer Science & Business Media. This book was released on 2006-11-22 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a summary of the research conducted at UCLA, Stanford University, and UCSD over the last ?ve years in the area of nonlinear dyn- ics and chaos as applied to digital communications. At ?rst blush, the term “chaotic communications” seems like an oxymoron; how could something as precise and deterministic as digital communications be chaotic? But as this book will demonstrate, the application of chaos and nonlinear dynamicstocommunicationsprovidesmanypromisingnewdirectionsinareas of coding, nonlinear optical communications, and ultra-wideband commu- cations. The eleven chapters of the book summarize many of the promising new approaches that have been developed, and point the way to new research directions in this ?eld. Digital communications techniques have been continuously developed and re?ned for the past ?fty years to the point where today they form the heart of a multi-hundred billion dollar per year industry employing hundreds of thousands of people on a worldwide basis. There is a continuing need for transmission and reception of digital signals at higher and higher data rates. There are a variety of physical limits that place an upper limit on these data rates, and so the question naturally arises: are there alternative communi- tion techniques that can overcome some of these limitations? Most digital communications today is carried out using electronic devices that are essentially “linear,” and linear system theory has been used to c- tinually re?ne their performance. In many cases, inherently nonlinear devices are linearized in order to achieve a certain level of linear system performance.
Author : Ban M. Al
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Coherence Resonance in Optical Feedback Chaos: Hiding Frequency in Chaos Communication written by Ban M. Al and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, an experimentally and numerically conducted investigation of the existence of high chaotic spiking in the dynamics of semiconductor lasers with AC-coupled optical feedback, the bifurcation diagram by feedback strength attenuation and the bias current as a control parameter was done. A semiconductor laser subjected to an external optical feedback can present a big change of dynamic behaviors, such as periodic and quasi-periodic oscillations, chaos, coherence collapse, and low-frequency fluctuations (LFF's) that degrade the laser characteristics. The chaotic instability is experimentally investigated on feedback strength as a control parameter, and the resulted dynamic is monostability. Finally, we indicated that the observed chaotic dynamic is a good candidate to hide information in order to investigate the resonance phenomena, which is important for chaos to encrypt data in optical communication, where data disappear when modulated in a chaos carrier. The aim of this chapter is to investigate the encryption area in the chaotic system when the applied frequency is 1-500 MHz, for satisfying the secure communication.
Author : Daan Lenstra
Publisher :
ISBN 13 : 9783039430666
Total Pages : 244 pages
Book Rating : 4.4/5 (36 download)
Download or read book Semiconductor Laser Dynamics written by Daan Lenstra and published by . This book was released on 2020-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a collection of 18 papers, two of which are reviews and seven are invited feature papers, that together form the Photonics Special Issue "Semiconductor Laser Dynamics: Fundamentals and Applications", published in 2020. This collection is edited by Daan Lenstra, an internationally recognized specialist in the field for 40 years.
Author : Kathy Lüdge
Publisher : John Wiley & Sons
ISBN 13 : 3527411003
Total Pages : 412 pages
Book Rating : 4.5/5 (274 download)
Download or read book Nonlinear Laser Dynamics written by Kathy Lüdge and published by John Wiley & Sons. This book was released on 2012-01-17 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A distinctive discussion of the nonlinear dynamical phenomena of semiconductor lasers. The book combines recent results of quantum dot laser modeling with mathematical details and an analytic understanding of nonlinear phenomena in semiconductor lasers and points out possible applications of lasers in cryptography and chaos control. This interdisciplinary approach makes it a unique and powerful source of knowledge for anyone intending to contribute to this field of research. By presenting both experimental and theoretical results, the distinguished authors consider solitary lasers with nano-structured material, as well as integrated devices with complex feedback sections. In so doing, they address such topics as the bifurcation theory of systems with time delay, analysis of chaotic dynamics, and the modeling of quantum transport. They also address chaos-based cryptography as an example of the technical application of highly nonlinear laser systems.
Author : Sylvia Schikora
Publisher : Springer Science & Business Media
ISBN 13 : 3658015403
Total Pages : 129 pages
Book Rating : 4.6/5 (58 download)
Download or read book All-Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers written by Sylvia Schikora and published by Springer Science & Business Media. This book was released on 2013-03-15 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stabilization of unstable states hidden in the dynamics of a system, in particular the control of chaos, received much attention in the last years. In this work, a well-known control method called delayed feedback control is applied for the first time entirely in the all-optical domain. A multisection semiconductor laser receives optical feedback from an external Fabry-Perot interferometer. The control signal is a phase-tunable superposition of the laser signal, and provokes the laser to operate in an otherwise unstable periodic state with a period equal to the time delay. The control is noninvasive, because the reflected signal tends to zero when the target state is reached.
Author : Michael Peil
Publisher :
ISBN 13 : 9783832511951
Total Pages : 250 pages
Book Rating : 4.5/5 (119 download)
Download or read book Dynamics and Synchronization Phenomena of Semiconductor Lasers with Delayed Optical Feedback written by Michael Peil and published by . This book was released on 2006 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, strategies to efficiently control nonlinear dynamical properties of semiconductor lasers with delayed optical feedback are successfully applied and accomplished. Based on this possibility, it is demonstrated how nonlinear dynamics can be harnessed for the realization of coherence controlled sources and encrypted communications based on chaotic carriers. Semiconductor lasers (SLs) with delayed optical feedback can exhibit intriguing dynamical phenomena. Therefore, these delay systems have become established experimental systems for studying fundamental nonlinear dynamics phenomena, comprising high-dimensional broadband chaotic emission dynamics. Nevertheless, with regard to the functionality of technical applications of SLs, feedback induced instabilities often represent a severe problem, so that much effort has been undertaken to suppress such instabilities. The opposite approach, asking whether the complex dynamical behavior of these systems can also be harnessed for applications remained barely treated so far. To give an answer to this question represented the gist of this thesis. With this aim, the emission properties of SLs with optical feedback have been intensively studied with the focus on regimes of chaotic emission. It is exemplified how the obtained knowledge about the nonlinear dynamical behavior of these systems can be utilized for tailoring the emission properties of SLs. This result represents a cornerstone of the presented work, since in fact it facilitates realization of new applications which are based on chaotic light. To substantiate this finding, a tailored SL light source is presented for which the coherence length can be tuned in a range between 8 m and 130 m. Such a light source can be implemented in modern ranging measurement technology, e.g., in chaotic LIDAR systems. As a second example, it has been studied whether it is possible to synchronize SL-systems that exhibit broadband, high-dimensional chaotic dynamics. The presented results give evidence that excellent synchronization can be achieved. Even more, it is verified that the revealed synchronization properties can be successfully utilized for realization of functional cryptographic communication systems. Hence, both examples highlight the potential of applied nonlinear dynamics for realization of novel practical applications for SLs.
Author : Peter Stavroulakis
Publisher : Springer Science & Business Media
ISBN 13 : 3642041175
Total Pages : 863 pages
Book Rating : 4.6/5 (42 download)
Download or read book Handbook of Information and Communication Security written by Peter Stavroulakis and published by Springer Science & Business Media. This book was released on 2010-02-23 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: At its core, information security deals with the secure and accurate transfer of information. While information security has long been important, it was, perhaps, brought more clearly into mainstream focus with the so-called “Y2K” issue. Te Y2K scare was the fear that c- puter networks and the systems that are controlled or operated by sofware would fail with the turn of the millennium, since their clocks could lose synchronization by not recognizing a number (instruction) with three zeros. A positive outcome of this scare was the creation of several Computer Emergency Response Teams (CERTs) around the world that now work - operatively to exchange expertise and information, and to coordinate in case major problems should arise in the modern IT environment. Te terrorist attacks of 11 September 2001 raised security concerns to a new level. Te - ternational community responded on at least two fronts; one front being the transfer of reliable information via secure networks and the other being the collection of information about - tential terrorists. As a sign of this new emphasis on security, since 2001, all major academic publishers have started technical journals focused on security, and every major communi- tions conference (for example, Globecom and ICC) has organized workshops and sessions on security issues. In addition, the IEEE has created a technical committee on Communication and Information Security. Te ?rst editor was intimately involved with security for the Athens Olympic Games of 2004.
Author : Narottam Das
Publisher : BoD – Books on Demand
ISBN 13 : 9535107844
Total Pages : 454 pages
Book Rating : 4.5/5 (351 download)
Download or read book Optical Communication written by Narottam Das and published by BoD – Books on Demand. This book was released on 2012-10-03 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical communication is very much useful in telecommunication systems, data processing and networking. It consists of a transmitter that encodes a message into an optical signal, a channel that carries the signal to its desired destination, and a receiver that reproduces the message from the received optical signal. It presents up to date results on communication systems, along with the explanations of their relevance, from leading researchers in this field. The chapters cover general concepts of optical communication, components, systems, networks, signal processing and MIMO systems. In recent years, optical components and other enhanced signal processing functions are also considered in depth for optical communications systems. The researcher has also concentrated on optical devices, networking, signal processing, and MIMO systems and other enhanced functions for optical communication. This book is targeted at research, development and design engineers from the teams in manufacturing industry, academia and telecommunication industries.
Author : Marcio Eisencraft
Publisher : CRC Press
ISBN 13 : 1466557230
Total Pages : 504 pages
Book Rating : 4.4/5 (665 download)
Download or read book Chaotic Signals in Digital Communications written by Marcio Eisencraft and published by CRC Press. This book was released on 2018-09-03 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chaotic Signals in Digital Communications combines fundamental background knowledge with state-of-the-art methods for using chaotic signals and systems in digital communications. The book builds a bridge between theoretical works and practical implementation to help researchers attain consistent performance in realistic environments. It shows the possible shortcomings of the chaos-based communication systems proposed in the literature, particularly when they are subjected to non-ideal conditions. It also presents a toolbox of techniques for researchers working to actually implement such systems. A Combination of Tutorials and In-Depth, Cutting-Edge Research Featuring contributions by active leading researchers, the book begins with an introduction to communication theory, dynamical systems, and chaotic communications suitable for those new to the field. This lays a solid foundation for the more applied chapters that follow. A Toolbox of Techniques—Including New Ways to Tackle Channel Imperfections The book covers typical chaos communication methods, namely chaotic masking, chaotic modulation, chaotic shift key, and symbolic message bearing, as well as bidirectional communication and secure communication. It also presents novel methodologies to deal with communication channel imperfections. These tackle band-limited channel chaos communication, radio channels with fading, and the resistance of a special chaotic signal to multipath propagations. In addition, the book addresses topics related to engineering applications, such as optical communications, chaotic matched filters and circuit implementations, and microwave frequency-modulated differential chaos shift keying (FM-DCSK) systems. Insights for Both Theoretical and Experimental Researchers Combining theory and practice, this book offers a unique perspective on chaotic communication in the context of non-ideal conditions. Written for theoretical and experimental researchers, it tackles the practical issues faced in implementing chaos-based signals and systems in digital communications applications.
Author : Visarath In
Publisher : Springer Science & Business Media
ISBN 13 : 3540856323
Total Pages : 464 pages
Book Rating : 4.5/5 (48 download)
Download or read book Applications of Nonlinear Dynamics written by Visarath In and published by Springer Science & Business Media. This book was released on 2009-02-11 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ?eld of applied nonlinear dynamics has attracted scientists and engineers across many different disciplines to develop innovative ideas and methods to study c- plex behavior exhibited by relatively simple systems. Examples include: population dynamics, ?uidization processes, applied optics, stochastic resonance, ?ocking and ?ightformations,lasers,andmechanicalandelectricaloscillators. Acommontheme among these and many other examples is the underlying universal laws of nonl- ear science that govern the behavior, in space and time, of a given system. These laws are universal in the sense that they transcend the model-speci?c features of a system and so they can be readily applied to explain and predict the behavior of a wide ranging phenomena, natural and arti?cial ones. Thus the emphasis in the past decades has been in explaining nonlinear phenomena with signi?cantly less att- tion paid to exploiting the rich behavior of nonlinear systems to design and fabricate new devices that can operate more ef?ciently. Recently, there has been a series of meetings on topics such as Experimental Chaos, Neural Coding, and Stochastic Resonance, which have brought together many researchers in the ?eld of nonlinear dynamics to discuss, mainly, theoretical ideas that may have the potential for further implementation. In contrast, the goal of the 2007 ICAND (International Conference on Applied Nonlinear Dynamics) was focused more sharply on the implementation of theoretical ideas into actual - vices and systems.
Author : David J. Klotzkin
Publisher : Springer Nature
ISBN 13 : 3030245012
Total Pages : 369 pages
Book Rating : 4.0/5 (32 download)
Download or read book Introduction to Semiconductor Lasers for Optical Communications written by David J. Klotzkin and published by Springer Nature. This book was released on 2020-01-07 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated, second edition textbook provides a thorough and accessible treatment of semiconductor lasers from a design and engineering perspective. It includes both the physics of devices as well as the engineering, designing and testing of practical lasers. The material is presented clearly with many examples provided. Readers of the book will come to understand the finer aspects of the theory, design, fabrication and test of these devices and have an excellent background for further study of optoelectronics.
Author : Ljupco Kocarev
Publisher : Springer
ISBN 13 : 3642205429
Total Pages : 400 pages
Book Rating : 4.6/5 (422 download)
Download or read book Chaos-based Cryptography written by Ljupco Kocarev and published by Springer. This book was released on 2011-06-17 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chaos-based cryptography, attracting many researchers in the past decade, is a research field across two fields, i.e., chaos (nonlinear dynamic system) and cryptography (computer and data security). It Chaos' properties, such as randomness and ergodicity, have been proved to be suitable for designing the means for data protection. The book gives a thorough description of chaos-based cryptography, which consists of chaos basic theory, chaos properties suitable for cryptography, chaos-based cryptographic techniques, and various secure applications based on chaos. Additionally, it covers both the latest research results and some open issues or hot topics. The book creates a collection of high-quality chapters contributed by leading experts in the related fields. It embraces a wide variety of aspects of the related subject areas and provide a scientifically and scholarly sound treatment of state-of-the-art techniques to students, researchers, academics, personnel of law enforcement and IT practitioners who are interested or involved in the study, research, use, design and development of techniques related to chaos-based cryptography.
