Dynamic Scenarios In Two State Quantum Dot Lasers
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Dynamic Scenarios In Two State Quantum Dot Lasers
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Author : André Röhm
language : en
Publisher: Springer
Release Date : 2015-03-25
Dynamic Scenarios In Two State Quantum Dot Lasers written by André Röhm and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-25 with Science categories.
André Röhm investigates the dynamic properties of two-state lasing quantum dot lasers, with a focus on ground state quenching. With a novel semi-analytical approach, different quenching mechanisms are discussed in an unified framework and verified with numerical simulations. The known results and experimental findings are reproduced and parameter dependencies are systematically studied. Additionally, the turn-on dynamics and modulation response curves of two-state lasing devices are presented.
Quantum Dot Based Semiconductor Optical Amplifiers For O Band Optical Communication
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Author : Holger Schmeckebier
language : en
Publisher: Springer
Release Date : 2016-10-21
Quantum Dot Based Semiconductor Optical Amplifiers For O Band Optical Communication written by Holger Schmeckebier and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-21 with Technology & Engineering categories.
This thesis examines the unique properties of gallium arsenide (GaAs)-based quantum-dot semiconductor optical amplifiers for optical communication networks, introducing readers to their fundamentals, basic parameters and manifold applications. The static and dynamic properties of these amplifiers are discussed extensively in comparison to conventional, non quantum-dot based amplifiers, and their unique advantages are elaborated on, such as the fast carrier dynamics and the decoupling of gain and phase dynamics. In addition to diverse amplification scenarios involving single and multiple high symbol rate amplitude and phase-coded data signals, wide-range wavelength conversion as a key functionality for optical signal processing is investigated and discussed in detail. Furthermore, two novel device concepts are developed and demonstrated that have the potential to significantly simplify network architectures, reducing the investment and maintenance costs as well as the energy consumption of future networks.
Nonlinear And Nonequilibrium Dynamics Of Quantum Dot Optoelectronic Devices
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Author : Benjamin Lingnau
language : en
Publisher: Springer
Release Date : 2015-12-14
Nonlinear And Nonequilibrium Dynamics Of Quantum Dot Optoelectronic Devices written by Benjamin Lingnau and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-14 with Science categories.
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.
Ultrafast Lasers Based On Quantum Dot Structures
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Author : Edik U. Rafailov
language : en
Publisher: John Wiley & Sons
Release Date : 2011-04-08
Ultrafast Lasers Based On Quantum Dot Structures written by Edik U. Rafailov and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-08 with Science categories.
In this monograph, the authors address the physics and engineering together with the latest achievements of efficient and compact ultrafast lasers based on novel quantum-dot structures and devices. Their approach encompasses a broad range of laser systems, while taking into consideration not only the physical and experimental aspects but also the much needed modeling tools, thus providing a holistic understanding of this hot topic.
The Physics And Engineering Of Compact Quantum Dot Based Lasers For Biophotonics
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Author : Edik U. Rafailov
language : en
Publisher: John Wiley & Sons
Release Date : 2013-12-30
The Physics And Engineering Of Compact Quantum Dot Based Lasers For Biophotonics written by Edik U. Rafailov and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-30 with Science categories.
Written by a team of European experts in the field, this book addresses the physics, the principles, the engineering methods, and the latest developments of efficient and compact ultrafast lasers based on novel quantum-dot structures and devices, as well as their applications in biophotonics. Recommended reading for physicists, engineers, students and lecturers in the fields of photonics, optics, laser physics, optoelectronics, and biophotonics.
Dynamics Of Quantum Dot Lasers
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Author : Christian Otto
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-01-21
Dynamics Of Quantum Dot Lasers written by Christian Otto and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-21 with Science categories.
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.
Quantum Dot Laser Behavior
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Author : Fabio Lozano
language : en
Publisher:
Release Date : 2004-09-20
Quantum Dot Laser Behavior written by Fabio Lozano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09-20 with categories.
This work explores the bifurcation scenarios of the quantum-dot (QD) semiconductor laser with an external cavity (optical feedback) using a dimensionless model where the dynamics of the ground and the excited states are examined in addition to the wetting layer (WL).It is shown that while chaos was reasoned, mainly, to ground state (gs) dynamics at low injection current as a result of fast interdot relaxation, it is reasoned to WL at high injection due to saturation. Time series for WL, gs, and excited state (es), and the bifurcation diagram are examined at different parameters.
Nonlinear Laser Dynamics
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Author : Kathy Lüdge
language : en
Publisher: John Wiley & Sons
Release Date : 2012-04-09
Nonlinear Laser Dynamics written by Kathy Lüdge and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-09 with Science categories.
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.
Quantum Confined Laser Devices
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Author : Peter Blood
language : en
Publisher: Oxford University Press, USA
Release Date : 2015
Quantum Confined Laser Devices written by Peter Blood and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Quantum dots categories.
This title takes students, final year undergraduates and graduates, and researchers, along the path to understand quantum processes in semiconductors, and to enable them, as researchers, to contribute to further advances and inventions.
Numerical Modeling Of Narrow Linewidth Quantum Dot Lasers
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Author : Bjelica, Marko
language : en
Publisher: kassel university press GmbH
Release Date : 2017-01-01
Numerical Modeling Of Narrow Linewidth Quantum Dot Lasers written by Bjelica, Marko and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-01 with categories.
The quantization of the active laser medium has enabled numerous advances in fiber-optic communications, e.g., higher efficiency of laser diodes, higher modulation bandwidth, lower spectral linewidth of the emitted signal. In recent years the quantum dot lasers have demonstrated a strong potential to continue this trend, therefore, by progressing from standard quantum well to quantum dot designs, it can be expected that the quantum dot lasers will play an increasingly important role in future fiber-optic communications. The research work presented in this dissertation seeks to further develop the quantum dot laser designs and improve the understanding of complex operating conditions affecting the laser linewidth. This is achieved by developing a comprehensive laser simulator, that was applied to design and simulation of edge-emitting lasers and laser arrays. As a result, the optimized laser diodes have demonstrated a significantly lower linewidth compared to equivalent quantum well designs. Due to their narrow linewidth, the realized photonic devices can be a viable solution for high bit rate fiber-optic networks.