Download or read book Characterisation of the High Frequency Nonlinear Dynamics of Semiconductor Lasers written by Stephen Bennett and published by . This book was released on 1997 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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.
Download or read book Nonlinear Dynamical Properties of Frequency Swept Fiber based Semiconductor Lasers written by Svetlana Slepneva and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate dynamics of semiconductor lasers with fiber-based unidirectional ring cavity that can be used as frequency swept sources. We identify key factors behind the reach dynamical behaviour of such lasers using state-of-the-art experimental and analytical methods. Experimentally, we study the laser in static, quasi-static and synchronisation regimes.We apply experimental methods such as optical heterodyne or electric field reconstruction in order to characterise these regimes or study the mechanisms of transition between them. Using a delay differential equation model, we demonstrate that the presence of chromatic dispersion can lead to destabilisation of the laser modes through modulational instability, which results in undesirable chaotic emission. We characterise the instability threshold both theoretically and experimentally, and demonstrate deterioration of the FDML regime near the threshold.
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.
Download or read book Nonlinear Optics and Nonlinear Dynamics in Semiconductor Lasers Subject to External Optical Injection written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Phase II SBIR effort investigates novel output characteristics of semiconductor lasers that can be induced by external optical injection. Specific interest is in characteristics relevant to the control of microwave and millimeter-wave electronics through enhanced modulation characteristics, characterization of vertical cavity surface emitting laser (VCSEL) arrays, and analysis of chaotic dynamics that can be induced by optical injection. Under external optical injection, all semiconductor lasers tested, conventional edge emitting Fabry Perot laser diodes, VCSELs, and distributed feedback (DFB) laser diodes exhibited periodic oscillation of the optical power due to an instability in the coupling between the circulating optical field and the semiconductor gain medium. The instability could be locked to a microwave reference by simultaneously injecting a weak modulation current at the appropriate frequency, i.e., double locking to both microwave and optical references. Phase locked operation with sub-Hz linewidth and - 125 dBc/Hz residual phase noise was measured, values that compare favorably with other published reports A compact configuration using relatively inexpensive optical components was demonstrated. All laser types could be accurately modeled using a lumped element, coupled equation model for the circulating optical field and free carrier density. The model showed good agreement with a mapping of the types of nonlinear dynamics observed experimentally.
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.
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.
Download or read book Nonlinear Dynamics of Semiconductor Lasers with Optical Feedback written by Wing-Shun Lam and published by . This book was released on 2003 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Dynamics of Semiconductor Lasers and Their Applications written by Ana Quirce and published by Mdpi AG. This book was released on 2022-03-23 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor lasers are key components in many optical systems due to their advantages, including their small size, low cost, high efficiency, and low power consumption. It is well-known that semiconductor lasers under external perturbations, such as optical injection, optical feedback, or delayed coupling can exhibit a large variety of complex dynamical behaviors. Nowadays, cutting-edge engineering applications based on the complex dynamics of diode lasers are being conducted in areas, such as optical communications, optical signal processing, encoded communications, neuro-inspired ultra-fast optical computing devices, microwave signal generation, RADAR and LIDAR applications, biomedical imaging, and broadband spectroscopy. The prospects for these applications are even more exciting with the advent of photonic integrated circuits. This Special Issue focuses on theoretical and experimental advances in the nonlinear dynamics of semiconductor lasers subject to different types of external perturbations.
Download or read book Nonlinear Photonics in Mid infrared Quantum Cascade Lasers written by Louise Jumpertz and published by Springer. This book was released on 2017-08-31 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the first comprehensive analysis of quantum cascade laser nonlinear dynamics and includes the first observation of a temporal chaotic behavior in quantum cascade lasers. It also provides the first analysis of optical instabilities in the mid-infrared range. Mid-infrared quantum cascade lasers are unipolar semiconductor lasers, which have become widely used in applications such as gas spectroscopy, free-space communications or optical countermeasures. Applying external perturbations such as optical feedback or optical injection leads to a strong modification of the quantum cascade laser properties. Optical feedback impacts the static properties of mid-infrared Fabry–Perot and distributed feedback quantum cascade lasers, inducing power increase; threshold reduction; modification of the optical spectrum, which can become either single- or multimode; and enhanced beam quality in broad-area transverse multimode lasers. It also leads to a different dynamical behavior, and a quantum cascade laser subject to optical feedback can oscillate periodically or even become chaotic. A quantum cascade laser under external control could therefore be a source with enhanced properties for the usual mid-infrared applications, but could also address new applications such as tunable photonic oscillators, extreme events generators, chaotic Light Detection and Ranging (LIDAR), chaos-based secured communications or unpredictable countermeasures.
Download or read book Fundamental Nonlinear Dynamics of Semiconductor Lasers written by Daan Lenstra and published by . This book was released on 1997 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Passively Mode Locked Semiconductor Lasers written by Lina Jaurigue and published by Springer. This book was released on 2017-06-22 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the dynamics of passively mode-locked semiconductor lasers, with a focus on the influence of optical feedback on the noise characteristics. The results presented here are important for improving the performance of passively mode-locked semiconductor lasers and, at the same time, are relevant for understanding delay-systems in general. The semi-analytic results developed are applicable to a broad range of oscillatory systems with time-delayed feedback, making the thesis of relevance to various scientific communities. Passively mode-locked lasers can produce pulse trains and have applications in the contexts of optical clocking, microscopy and optical data communication, among others. Using a system of delay differential equations to model these devices, a combination of numerical and semi-analytic methods is developed and used to characterize this system.
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.
Download or read book Nonlinear Dynamics of Semiconductor Lasers with Active Optical Feedback written by Stefan Bauer and published by . This book was released on 2005 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Dynamics of Optically Injected Semiconductor Lasers written by Stefan Eriksson and published by . This book was released on 2002 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2006 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.
