All Optical Noninvasive Delayed Feedback Control Of Semiconductor Lasers

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All-Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers

Sylvia Schikora
All Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers Book PDF

Author : Sylvia Schikora
Publisher : Springer Science & Business Media
Page : 129 pages
File Size : 40,6 Mb
Release : 2013-03-15
Category : Science
ISBN : 9783658015404

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All-Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers by Sylvia Schikora Pdf

​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.

Control of Complex Nonlinear Systems with Delay

Philipp Hövel
Control of Complex Nonlinear Systems with Delay Book PDF

Author : Philipp Hövel
Publisher : Springer Science & Business Media
Page : 261 pages
File Size : 41,5 Mb
Release : 2010-09-27
Category : Science
ISBN : 9783642141102

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Control of Complex Nonlinear Systems with Delay by Philipp Hövel Pdf

This research addresses delay effects in nonlinear systems, which are ubiquitous in various fields of physics, chemistry, biology, engineering, and even in social and economic systems. They may arise as a result of processing times or due to the finite propagation speed of information between the constituents of a complex system. Time delay has two complementary, counterintuitive and almost contradictory facets. On the one hand, delay is able to induce instabilities, bifurcations of periodic and more complicated orbits, multi-stability and chaotic motion. On the other hand, it can suppress instabilities, stabilize unstable stationary or periodic states and may control complex chaotic dynamics. This thesis deals with both aspects, and presents novel fundamental results on the controllability of nonlinear dynamics by time-delayed feedback, as well as applications to lasers, hybrid-mechanical systems, and coupled neural systems.

Delay-Coupled Complex Systems

Valentin Flunkert
Delay Coupled Complex Systems Book PDF

Author : Valentin Flunkert
Publisher : Springer Science & Business Media
Page : 181 pages
File Size : 52,9 Mb
Release : 2011-06-25
Category : Science
ISBN : 9783642202506

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Delay-Coupled Complex Systems by Valentin Flunkert Pdf

This work addresses time-delay in complex nonlinear systems and, in particular, its applications in complex networks; its role in control theory and nonlinear optics are also investigated. Delays arise naturally in networks of coupled systems due to finite signal propagation speeds and are thus a key issue in many areas of physics, biology, medicine, and technology. Synchronization phenomena in these networks play an important role, e.g., in the context of learning, cognitive and pathological states in the brain, for secure communication with chaotic lasers or for gene regulation. The thesis includes both novel results on the control of complex dynamics by time-delayed feedback and fundamental new insights into the interplay of delay and synchronization. One of the most interesting results here is a solution to the problem of complete synchronization in general networks with large coupling delay, i.e., large distances between the nodes, by giving a universal classification of networks that has a wide range of interdisciplinary applications.

Nonlinear and Nonequilibrium Dynamics of Quantum-Dot Optoelectronic Devices

Benjamin Lingnau
Nonlinear and Nonequilibrium Dynamics of Quantum Dot Optoelectronic Devices Book PDF

Author : Benjamin Lingnau
Publisher : Springer
Page : 193 pages
File Size : 50,8 Mb
Release : 2015-12-14
Category : Science
ISBN : 9783319258058

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Nonlinear and Nonequilibrium Dynamics of Quantum-Dot Optoelectronic Devices by Benjamin Lingnau Pdf

This thesis sheds light on the unique dynamics of optoelectronic devices based on semiconductor quantum-dots. The complex scattering processes involved in filling the optically active quantum-dot states and the presence of charge-carrier nonequilibrium conditions are identified as sources for the distinct dynamical behavior of quantum-dot based devices. Comprehensive theoretical models, which allow for an accurate description of such devices, are presented and applied to recent experimental observations. The low sensitivity of quantum-dot lasers to optical perturbations is directly attributed to their unique charge-carrier dynamics and amplitude-phase-coupling, which is found not to be accurately described by conventional approaches. The potential of quantum-dot semiconductor optical amplifiers for novel applications such as simultaneous multi-state amplification, ultra-wide wavelength conversion, and coherent pulse shaping is investigated. The scattering mechanisms and the unique electronic structure of semiconductor quantum-dots are found to make such devices prime candidates for the implementation of next-generation optoelectronic applications, which could significantly simplify optical telecommunication networks and open up novel high-speed data transmission schemes.

Handbook of Chaos Control

Eckehard Schöll,Heinz Georg Schuster
Handbook of Chaos Control Book PDF

Author : Eckehard Schöll,Heinz Georg Schuster
Publisher : John Wiley & Sons
Page : 849 pages
File Size : 53,7 Mb
Release : 2008-09-08
Category : Science
ISBN : 9783527622320

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Handbook of Chaos Control by Eckehard Schöll,Heinz Georg Schuster Pdf

This long-awaited revised second edition of the standard reference on the subject has been considerably expanded to include such recent developments as novel control schemes, control of chaotic space-time patterns, control of noisy nonlinear systems, and communication with chaos, as well as promising new directions in research. The contributions from leading international scientists active in the field provide a comprehensive overview of our current level of knowledge on chaos control and its applications in physics, chemistry, biology, medicine, and engineering. In addition, they show the overlap with the traditional field of control theory in the engineering community. An interdisciplinary approach of interest to scientists and engineers working in a number of areas.

Complex Time-Delay Systems

Fatihcan M. Atay
Complex Time Delay Systems Book PDF

Author : Fatihcan M. Atay
Publisher : Springer Science & Business Media
Page : 336 pages
File Size : 55,8 Mb
Release : 2010-03-24
Category : Science
ISBN : 9783642023286

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Complex Time-Delay Systems by Fatihcan M. Atay Pdf

One of the major contemporary challenges in both physical and social sciences is modeling, analyzing, and understanding the self-organization, evolution, behavior, and eventual decay of complex dynamical systems ranging from cell assemblies to the human brain to animal societies. The multi-faceted problems in this domain require a wide range of methods from various scienti?c disciplines. There is no question that the inclusion of time delays in complex system models considerably enriches the challenges presented by the problems. Although this inclusion often becomes inevitable as real-world applications demand more and more realistic m- els, the role of time delays in the context of complex systems so far has not attracted the interest it deserves. The present volume is an attempt toward ?lling this gap. There exist various useful tools for the study of complex time-delay systems. At the forefront is the mathematical theory of delay equations, a relatively mature ?eld in many aspects, which provides some powerful techniques for analytical inquiries, along with some other tools from statistical physics, graph theory, computer science, dynamical systems theory, probability theory, simulation and optimization software, and so on. Nevertheless, the use of these methods requires a certain synergy to address complex systems problems, especially in the presence of time delays.

Reviews of Nonlinear Dynamics and Complexity

Heinz Georg Schuster
Reviews of Nonlinear Dynamics and Complexity Book PDF

Author : Heinz Georg Schuster
Publisher : John Wiley & Sons
Page : 227 pages
File Size : 49,8 Mb
Release : 2009-09-03
Category : Science
ISBN : 9783527626366

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Reviews of Nonlinear Dynamics and Complexity by Heinz Georg Schuster Pdf

Adopting a cross-disciplinary approach, the review character of this monograph sets it apart from specialized journals. The editor is advised by a first-class board of international scientists, such that the carefully selected and invited contributions represent the latest and most relevant findings. The resulting review enables both researchers and newcomers in life science, physics, and chemistry to access the most important results in this field, using a common language.

Unlocking Dynamical Diversity

Deborah M. Kane,K. Alan Shore
Unlocking Dynamical Diversity Book PDF

Author : Deborah M. Kane,K. Alan Shore
Publisher : John Wiley & Sons
Page : 356 pages
File Size : 50,5 Mb
Release : 2005-11-01
Category : Science
ISBN : 9780470856208

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Unlocking Dynamical Diversity by Deborah M. Kane,K. Alan Shore Pdf

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.

Nonlinear Laser Dynamics

Kathy Lüdge
Nonlinear Laser Dynamics Book PDF

Author : Kathy Lüdge
Publisher : John Wiley & Sons
Page : 412 pages
File Size : 53,6 Mb
Release : 2012-04-09
Category : Science
ISBN : 9783527639830

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Nonlinear Laser Dynamics by Kathy Lüdge Pdf

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.

Analysis and Control of Complex Nonlinear Processes in Physics, Chemistry and Biology

L. Schimansky-Geier
Analysis and Control of Complex Nonlinear Processes in Physics Chemistry and Biology Book PDF

Author : L. Schimansky-Geier
Publisher : World Scientific
Page : 454 pages
File Size : 48,6 Mb
Release : 2007
Category : Mathematics
ISBN : 9789812706911

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Analysis and Control of Complex Nonlinear Processes in Physics, Chemistry and Biology by L. Schimansky-Geier Pdf

Nonlinear dynamics of complex processes is an active research field with large numbers of publications in basic research, and broad applications from diverse fields of science. Nonlinear dynamics as manifested by deterministic and stochastic evolution models of complex behavior has entered statistical physics, physical chemistry, biophysics, geophysics, astrophysics, theoretical ecology, semiconductor physics and -optics, etc. This field of research has induced a new terminology in science connected with new questions, problems, solutions and methods. New scenarios have emerged for spatio-temporal structures in dynamical systems far from equilibrium. Their analysis and possible control are intriguing and challenging aspects of the current research. The duality of fundamental and applied research is a focal point of its main attractivity and fascination. Basic topics and foundations are always linked to concrete and precise examples. Models and measurements of complex nonlinear processes evoke and provoke new fundamental questions that diversify and broaden the mathematical concepts and tools. In return, new mathematical approaches to modeling and analysis enlarge the scope and efficiency of applied research.

Dynamics of Quantum Dot Lasers

Christian Otto
Dynamics of Quantum Dot Lasers Book PDF

Author : Christian Otto
Publisher : Springer Science & Business Media
Page : 301 pages
File Size : 46,6 Mb
Release : 2014-01-21
Category : Science
ISBN : 9783319037868

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Dynamics of Quantum Dot Lasers by Christian Otto Pdf

This thesis deals with the dynamics of state-of-the-art nanophotonic semiconductor structures, providing essential information on fundamental aspects of nonlinear dynamical systems on the one hand, and technological applications in modern telecommunication on the other. Three different complex laser structures are considered in detail: (i) a quantum-dot-based semiconductor laser under optical injection from a master laser, (ii) a quantum-dot laser with optical feedback from an external resonator, and (iii) a passively mode-locked quantum-well semiconductor laser with saturable absorber under optical feedback from an external resonator. Using a broad spectrum of methods, both numerical and analytical, this work achieves new fundamental insights into the interplay of microscopically based nonlinear laser dynamics and optical perturbations by delayed feedback and injection.

Distributed Feedback Laser Diodes and Optical Tunable Filters

Dr. H. Ghafouri-Shiraz
Distributed Feedback Laser Diodes and Optical Tunable Filters Book PDF

Author : Dr. H. Ghafouri-Shiraz
Publisher : John Wiley & Sons
Page : 342 pages
File Size : 51,5 Mb
Release : 2004-02-06
Category : Science
ISBN : 9780470856222

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Distributed Feedback Laser Diodes and Optical Tunable Filters by Dr. H. Ghafouri-Shiraz Pdf

Advances in optical fibre based communications systems have played a crucial role in the development of the information highway. By offering a single mode oscillation and narrow spectral output, distributed feedback (DFB) semiconductor laser diodes offer excellent optical light sources as well as optical filters for fibre based communications and dense wavelength division multiplexing (DWDM) systems. This comprehensive text focuses on the basic working principles of DFB laser diodes and optical filters and details the development of a new technique for enhanced system performance. Considers the optical waveguiding characteristics and properties of semiconductor materials and the physics of DFB semiconductor lasers. Presents a powerful modelling technique based on the transfer matrix method which can be used to improve the design of laser diodes, optical fibres and amplifiers. Examines the effect of the various corrugation shapes on the coupling coefficients and lasing characteristics of DFB laser diodes. Technical advice to improve immunity against the spatial hole burning effect. Extensive referencing throughout and a comprehensive glossary of symbols and abbreviations. Suitable for both introductory and advanced levels This is an indispensable textbook for undergraduate and postgraduate students of electrical and electronic engineering and physics as it consolidates their knowledge in this rapidly growing field. As a technical guide for the structural design of DFB laser diodes and optical filters, the book will serve as an invaluable reference for researchers in opto-electronics, and semi conductor device physics.

Transverse-Pattern Formation in Photorefractive Optics

Cornelia Denz,Michael Schwab,Carsten Weilnau
Transverse Pattern Formation in Photorefractive Optics Book PDF

Author : Cornelia Denz,Michael Schwab,Carsten Weilnau
Publisher : Springer Science & Business Media
Page : 360 pages
File Size : 51,6 Mb
Release : 2003-09-22
Category : Science
ISBN : 3540021094

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Transverse-Pattern Formation in Photorefractive Optics by Cornelia Denz,Michael Schwab,Carsten Weilnau Pdf

Overview of current developments in nonlinear photorefractive optics. The book dicusses exciting discoveries, with special emphasis on transverse effects such as spatial soliton formation and interaction, spontaneous pattern formation and pattern competition in active feedback systems. Different aspects of potential applications, such as wave guiding in adaptive photorefractive solitons and techniques for pattern control for information processing, are also described.

Single Frequency Semiconductor Lasers

Zujie Fang,Haiwen Cai,Gaoting Chen,Ronghui Qu
Single Frequency Semiconductor Lasers Book PDF

Author : Zujie Fang,Haiwen Cai,Gaoting Chen,Ronghui Qu
Publisher : Springer
Page : 306 pages
File Size : 51,6 Mb
Release : 2017-07-29
Category : Science
ISBN : 9789811052576

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Single Frequency Semiconductor Lasers by Zujie Fang,Haiwen Cai,Gaoting Chen,Ronghui Qu Pdf

This book systematically introduces the single frequency semiconductor laser, which is widely used in many vital advanced technologies, such as the laser cooling of atoms and atomic clock, high-precision measurements and spectroscopy, coherent optical communications, and advanced optical sensors. It presents both the fundamentals and characteristics of semiconductor lasers, including basic F-P structure and monolithic integrated structures; interprets laser noises and their measurements; and explains mechanisms and technologies relating to the main aspects of single frequency lasers, including external cavity lasers, frequency stabilization technologies, frequency sweeping, optical phase locked loops, and so on. It paints a clear, physical picture of related technologies and reviews new developments in the field as well. It will be a useful reference to graduate students, researchers, and engineers in the field.

Dynamics of Complex Autonomous Boolean Networks

David P. Rosin
Dynamics of Complex Autonomous Boolean Networks Book PDF

Author : David P. Rosin
Publisher : Springer
Page : 208 pages
File Size : 51,6 Mb
Release : 2014-12-31
Category : Science
ISBN : 9783319135786

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Dynamics of Complex Autonomous Boolean Networks by David P. Rosin Pdf

This thesis focuses on the dynamics of autonomous Boolean networks, on the basis of Boolean logic functions in continuous time without external clocking. These networks are realized with integrated circuits on an electronic chip as a field programmable gate array (FPGA) with roughly 100,000 logic gates, offering an extremely flexible model system. It allows fast and cheap design cycles and large networks with arbitrary topologies and coupling delays. The author presents pioneering results on theoretical modeling, experimental realization, and selected applications. In this regard, three classes of novel dynamic behavior are investigated: (i) Chaotic Boolean networks are proposed as high-speed physical random number generators with high bit rates. (ii) Networks of periodic Boolean oscillators are home to long-living transient chimera states, i.e., novel patterns of coexisting domains of spatially coherent (synchronized) and incoherent (desynchronized) dynamics. (iii) Excitable networks exhibit cluster synchronization and can be used as fast artificial Boolean neurons whose spiking patterns can be controlled. This work presents the first experimental platform for large complex networks, which will facilitate exciting future developments.