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Spatio Temporal Dynamics Of Semiconductor Lasers
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Book Synopsis Spatio-Temporal Dynamics and Quantum Fluctuations in Semiconductor Lasers by : Edeltraud Gehrig
Download or read book Spatio-Temporal Dynamics and Quantum Fluctuations in Semiconductor Lasers written by Edeltraud Gehrig and published by Springer Science & Business Media. This book was released on 2003-09-22 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents fundamental theories and simulations of the spatio-temporal dynamics and quantum fluctuations in semiconductor lasers. The dynamic interplay of light and matter is theoretically described by taking into account microscopic carrier dynamics, spatially dependent light-field propagation and the influence of spontaneous emission and noise.
Book Synopsis Spatio-temporal Dynamics of Semiconductor Lasers by : Ortwin Hess
Download or read book Spatio-temporal Dynamics of Semiconductor Lasers written by Ortwin Hess and published by . This book was released on 1993 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spatio-temporal dynamics of multi-stripe and broad-area semiconductor laser arrays are studied theoretically. A hierarchy of microscopic and phenomenological model equations, which describe the interaction between the optical field and the active semiconductor medium, are formulated.
Book Synopsis Spatio-temporal Dynamics of Semiconductor Lasers by : Ortwin Hess
Download or read book Spatio-temporal Dynamics of Semiconductor Lasers written by Ortwin Hess and published by . This book was released on 1996 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microscopic Spatio-temporal Dynamics of Semiconductor Quantum Well Lasers and Amplifiers by : Klaus Böhringer
Download or read book Microscopic Spatio-temporal Dynamics of Semiconductor Quantum Well Lasers and Amplifiers written by Klaus Böhringer and published by . This book was released on 2007 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatio-Temporal Dynamics of Bio and Optoelectronic Systems by : Nicoleta Gaciu
Download or read book Spatio-Temporal Dynamics of Bio and Optoelectronic Systems written by Nicoleta Gaciu and published by . This book was released on 2010-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatio-Temporal Modeling and Device Optimization of Passively Mode-Locked Semiconductor Lasers by : Stefan Meinecke
Download or read book Spatio-Temporal Modeling and Device Optimization of Passively Mode-Locked Semiconductor Lasers written by Stefan Meinecke and published by Springer Nature. This book was released on 2022-03-26 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates passively mode-locked semiconductor lasers by numerical methods. The understanding and optimization of such devices is crucial to the advancement of technologies such as optical data communication and dual comb spectroscopy. The focus of the thesis is therefore on the development of efficient numerical models, which are able both to perform larger parameter studies and to provide quantitative predictions. Along with that, visualization and evaluation techniques for the rich spatio-temporal laser dynamics are developed; these facilitate the physical interpretation of the observed features. The investigations in this thesis revolve around two specific semiconductor devices, namely a monolithically integrated three-section tapered quantum-dot laser and a V-shaped external cavity laser. In both cases, the simulations closely tie in with experimental results, which have been obtained in collaboration with the TU Darmstadt and the ETH Zurich. Based on the successful numerical reproduction of the experimental findings, the emission dynamics of both lasers can be understood in terms of the cavity geometry and the active medium dynamics. The latter, in particular, highlights the value of the developed simulation tools, since the fast charge-carrier dynamics are generally not experimentally accessible during mode-locking operation. Lastly, the numerical models are used to perform laser design explorations and thus to derive recommendations for further optimizations.
Book Synopsis Spatial Dynamics of Semiconductor Lasers by : John A. Houlihan
Download or read book Spatial Dynamics of Semiconductor Lasers written by John A. Houlihan and published by . This book was released on 2002 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of semiconductor lasers over the past 40 years has been concerned with both their operating characteristics and their properties as a non-linear optical system. In particular, the transition from stable dynamical operation to a more complex dynamical state, when the number of degrees of freedom of the system is increased, is of great interest from technological as well as fundamental viewpoints. This thesis will examine two examples of this type of extension namely, the increase in the transverse size of the laser cavity and the effect of delayed external incoherent feedback, on the lasers dynamics. In the former case we will study a mechanism for the stabilization of the chaotic output of the laser and in the latter we will identify some instabilities and discuss their properties. Broad area lasers are ubiquitous in modern optical fiber networks, their main application being the pumping of erbium doped fiber amplifiers. They are characterized by their ease of fabrication and subsequent low cost. However, they display complex chaotic spatio-temporal dynamics at high output powers which leads to a loss in the spatial coherence of the laser beam. This loss in spatial coherence limits the applications of these devices and/or constrains the laser to operate at low output powers. We will analyse, both experimentally and theoretically, a simple technique which may be used to stabilize the output of these simple broad area lasers, namely transverse injection profiling. The mechanism for stabilization of these lasers is identified and an alternative implementation is discussed. In the remainder of the thesis, the effect of incoherent delayed feedback on a single transverse mode, multi-longitudinal mode semiconductor laser is experimentally analysed. This experiment is motivated by the large amount of theoretical and experimental work concerning both regular and phase conjugate optical feedback in semiconductor laser devices. In these situations, the dynamical evolution is determined by the coupling between the carriers, the optical intensity and the phase difference between the laser output and delayed field. In the incoherent case, the phase difference may be neglected. In particular, the effect of phase amplitude coupling, which plays a crucial role in the coherent and phase-conjugate feedback situations, may be neglected in the incoherent feedback case. This is because the external cavity system is no longer sensitive to small changes in the solitary laser frequency. However, the system still displays a number of intensity instabilities, similar to the coherent feedback case, whose nature will be discussed.
Book Synopsis Nonlinear Spatio-Temporal Dynamics and Chaos in Semiconductors by : Eckehard Schöll
Download or read book Nonlinear Spatio-Temporal Dynamics and Chaos in Semiconductors written by Eckehard Schöll and published by Cambridge University Press. This book was released on 2001-02-22 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together concepts from semiconductor physics, nonlinear-dynamics and chaos to examine semiconductor transport phenomena.
Book Synopsis Spatio-temporal and Polarisation Dynamics of Semiconductor Microcavity Lasers by : Joachim Hamm
Download or read book Spatio-temporal and Polarisation Dynamics of Semiconductor Microcavity Lasers written by Joachim Hamm and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Spatio-Temporal Phenomena in High-Brightness Diode Lasers using Numerical Simulations by : Anissa Zeghuzi
Download or read book Analysis of Spatio-Temporal Phenomena in High-Brightness Diode Lasers using Numerical Simulations written by Anissa Zeghuzi and published by Cuvillier Verlag. This book was released on 2020-10-22 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broad-area lasers are edge-emitting semiconductor lasers with a wide lateral emission aperture. This feature enables high output powers but also diminishes the lateral beam quality and results in their inherently non-stationary behavior. Research in the area is driven by application, and the main objective is to increase the brightness, which includes both output power and lateral beam quality. To understand the underlying spatio-temporal phenomena and to apply this knowledge in order to reduce costs for brightness optimization, a self-consistent simulation tool taking all essential processes into account is vital. Firstly, in this work a quasi-three-dimensional opto-electronic and thermal model is presented that describes essential qualitative characteristics of real devices well. Time-dependent traveling-wave equations are utilized to characterize the inherently non-stationary optical fields, which are coupled to dynamic rate equations for the excess carriers in the active region. This model is extended by an injection-current-density model to accurately include lateral current spreading and spatial hole burning. Furthermore, a temperature model is presented that includes short-time local heating near the active region as well as the formation of a stationary temperature profile. Secondly, the reasons of brightness degradation, i.e. the origins of power saturation and the spatially modulated field profile, are investigated. And lastly, designs that mitigate those effects limiting the lateral brightness under pulsed and continuous-wave operation are discussed. Amongst those designs a novel “chessboard laser” is presented that utilizes longitudinal-lateral gain-loss modulation and an additional phase tailoring to obtain a very low far-field divergence.
Book Synopsis Semiconductor Lasers by : Junji Ohtsubo
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.
Book Synopsis High-Power Diode Lasers by : Roland Diehl
Download or read book High-Power Diode Lasers written by Roland Diehl and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from the basics of semiconductor lasers with emphasis on the generation of high optical output power the reader is introduced in a tutorial way to all key technologies required to fabricate high-power diode-laser sources. Various applications are exemplified.
Book Synopsis Proceedings Of The 1st Experimental Chaos Conference by : Sandeep Vohra
Download or read book Proceedings Of The 1st Experimental Chaos Conference written by Sandeep Vohra and published by World Scientific. This book was released on 1992-04-24 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first conference dedicated to the understanding of the experimental aspects of chaotic behavior in several fields and to addressing the emerging areas of data analysis and applications of nonlinear phenomena. Areas covered are data analysis and signal processing techniques, optics, applications of chaotic behavior, magnetism, nonlinear electronic circuits, spatiotemporal chaos, semiconductors, and physiology. Each paper shows real data and what can be done with it. Emphasis is on the manifestation of chaos in real systems, measuring it, analyzing it, and using it in new and unique applications.
Book Synopsis Handbook of Optoelectronic Device Modeling and Simulation by : Joachim Piprek
Download or read book Handbook of Optoelectronic Device Modeling and Simulation written by Joachim Piprek and published by CRC Press. This book was released on 2017-10-12 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive survey of fundamental concepts and methods for optoelectronic device modeling and simulation. Gives a broad overview of concepts with concise explanations illustrated by real results. Compares different levels of modeling, from simple analytical models to complex numerical models. Discusses practical methods of model validation. Includes an overview of numerical techniques.
Book Synopsis Nonlinear Dynamics: Materials, Theory and Experiments by : Mustapha Tlidi
Download or read book Nonlinear Dynamics: Materials, Theory and Experiments written by Mustapha Tlidi and published by Springer. This book was released on 2015-11-14 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances, new ideas and novel techniques related to the field of nonlinear dynamics, including localized pattern formation, self-organization and chaos. Various natural systems ranging from nonlinear optics to mechanics, fluids and magnetic are considered. The aim of this book is to gather specialists from these various fields of research to promote cross-fertilization and transfer of knowledge between these active research areas. In particular, nonlinear optics and laser physics constitute an important part in this issue due to the potential applications for all-optical control of light, optical storage, and information processing. Other possible applications include the generation of ultra-short pulses using all-fiber cavities.
Book Synopsis Transverse-Pattern Formation in Photorefractive Optics by : Cornelia Denz
Download or read book Transverse-Pattern Formation in Photorefractive Optics written by Cornelia Denz and published by Springer Science & Business Media. This book was released on 2003-09-22 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Nonlinear Dynamics and Spatiotemporal Instabilities in Semiconductor Laser Arrays by : Lutfur Rahman
Download or read book Nonlinear Dynamics and Spatiotemporal Instabilities in Semiconductor Laser Arrays written by Lutfur Rahman and published by . This book was released on 1993 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
