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Book
Chapter Optical Wireless and Millimeter Waves for 5G Access Networks
Authors: ---
Year: 2019 Publisher: Paris : IntechOpen,

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Abstract

Growing bandwidth demands are driving the search for increased network capacity leading to the exploration of new wavelength ranges for future communication systems. Therefore, we consider two technologies that offer increased transmission bandwidths by virtue of their high carrier frequencies, namely optical wireless and millimeter-wave transmission. After highlighting the relevant electromagnetic (EM) spectrum region, we briefly describe the applications and properties of each approach coupled with a short history of their development. This is followed by a performance comparison in two possible 5G links: outdoor point-to-point and indoor hotspots. We find that in both cases, there are regions where optical wireless communications (OWC) are better, but others where millimeter waves are to be preferred. Specifically, the former outperforms the latter over distances up to approximately 50 meters outdoors and a 10-meter hotspot radius indoors.


Book
Physics of nonlinear optics
Authors: ---
ISBN: 3030739791 3030739783 Year: 2021 Publisher: Cham, Switzerland : Springer,

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The book is designed to serve as a textbook for courses offered to upper-undergraduate students enrolled in physics. The first edition of this book was published in 2014. As there is a demand for the next edition, it is quite natural to take note of the several advances that have occurred in the subject over the past five years and to decide which of these are appropriate for inclusion at the textbook level, given the fundamental nature and the significance of the subject area. This is the prime motivation for bringing out a revised second edition. Among the newer mechanisms and materials, the book introduces the super-continuum generation, which arises from an excellent interplay of the various mechanisms of optical nonlinearity. The topics covered in this book are quantum mechanics of nonlinear interaction of matter and radiation, formalism and phenomenology of nonlinear wave mixing processes, optical phase conjugation and applications, self-focusing and self-phase modulation and their role in pulse modification, nonlinear absorption mechanisms, and optical limiting applications, photonic switching and bi-stability, and physical mechanisms leading to a nonlinear response in a variety of materials. This book has emerged from an attempt to address the requirement of presenting the subject at the college level. This textbook includes rigorous features such as the elucidation of relevant basic principles of physics; a clear exposition of the ideas involved at an appropriate level; coverage of the physical mechanisms of non-linearity; updates on physical mechanisms and emerging photonic materials and emphasis on the experimental study of nonlinear interactions. The detailed coverage and pedagogical tools make this an ideal textbook for students and researchers enrolled in physics and related courses.


Book
A Practical Guide to Handling Laser Diode Beams
Author:
ISBN: 9401797838 Year: 2015 Publisher: Dordrecht : Springer Netherlands : Imprint: Springer,

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This book offers the reader a practical guide to the control and characterization of laser diode beams.  Laser diodes are the most widely used lasers, accounting for 50% of the global laser market.  Correct handling of laser diode beams is the key to the successful use of laser diodes, and this requires an in-depth understanding of their unique properties. Following a short introduction to the working principles of laser diodes, the book describes the basics of laser diode beams and beam propagation, including Zemax modeling of a Gaussian beam propagating through a lens.  The core of the book is concerned with laser diode beam manipulations: collimating and focusing, circularization and astigmatism correction, coupling into a single mode optical fiber, diffractive optics and beam shaping, and manipulation of multi transverse mode beams.  The final chapter of the book covers beam characterization methods, describing the measurement of spatial and spectral properties, including wavelength and linewidth measurement techniques.  The book is a significantly revised and expanded version of the title Laser Diode Beam Basics, Manipulations and Characterizations by the same author. New topics introduced in this volume include: laser diode types and working principles, non-paraxial Gaussian beam, Zemax modeling, numerical analysis of a laser diode beam, spectral property characterization methods, and power and energy characterization techniques.  The book approaches the subject in a practical way with mathematical content kept to the minimum level required, making the book a convenient reference for laser diode users.


Book
Scalar Wave Driven Energy Applications
Author:
ISBN: 331991023X Year: 2019 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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This book discusses innovations in the field of Directed Energy (DE) and presents new technologies and innovative approaches for use in energy production for possible Underwater Communication, Directed Energy Weapons Applications and at lower wave energy for Medical Applications as well. In-depth chapters explore the challenges related to the study of energy produced from Scalar Longitudinal Wave (SLW). Topics related to Scalar Longitudinal Waves (SLW) and their various applications in the energy, medical, and military sector are discussed along with principles of Quantum Electrodynamics (QED) and theory, weapon applications of SLW, as well as SLW driven propulsion via an all-electronic engine, and for underwater communications. Scalar Wave Driven Energy Applications offers a unique solution for students, researchers, and engineers seeking a viable alternative to traditional approaches for energy production. Describes the benefits, uses, and challenges related to Scala Longitudinal Wave (SLW); Offers an innovative and unique solution to the challenge of finding new and innovative sources of energy production; Focuses on real world applications of SLW in the energy, medical, and military sectors.


Book
Geometric Feature-Based Fiber Optic Surface Plasmon Resonance Sensors
Authors: --- ---
ISBN: 9819972973 Year: 2024 Publisher: Singapore : Springer Nature Singapore : Imprint: Springer,

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This book focuses on the surface plasmon resonance (SPR) technique covering fibre optic sensor research. It highlights recent advancements in geometric feature-based fibre optic SPR sensors for chemical/biochemical/biosensor applications. The contents also discuss the principle of the SPR sensing technique as well as various designs of fibre optic SPR probes for improving sensor sensitivity. It also includes numerous examples of SPR-based fibre optic sensors with various geometric (such as U-type, taper type, D-type, and interferometric-based) sensors. This volume will be a useful reference to those in academia and industry especially researchers with useful information focusing on fibre optic SPR sensors.


Book
Lens design fundamentals
Authors: ---
ISBN: 1282540955 9786612540950 0080921566 012374301X Year: 2010 Publisher: Oxford : Academic Press,

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Thoroughly revised and expanded to reflect the substantial changes in the field since its publication in 1978Strong emphasis on how to effectively use software design packages, indispensable to today's lens designerMany new lens design problems and examples - ranging from simple lenses to complex zoom lenses and mirror systems - give insight for both the newcomer and specialist in the field Rudolf Kingslake is regarded as the American father of lens design; his book, not revised since its publication in 1978, is viewed as a classic in the field. Naturally


Book
Geometrical and trigonometric optics
Authors: ---
ISBN: 9780511755637 9780521887465 9780511424939 0511424930 9780511650048 0511650043 9780511421570 0511421575 9780511422270 051142227X 0521887461 9780511423437 0511423438 1107200881 9786612390418 0511645953 1282390414 0511422113 0511422776 0511755635 Year: 2008 Publisher: Cambridge Cambridge University Press

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Optics has recently evolved into one of the most flourishing fields in physics, with photonics finding increasing application in products such as optical thermometers, camera monitors and LED lighting, plus numerous military applications. This book covers the geometrical aspects of optics, the fundamental level of understanding the technology. Beginning with how light is generated and how fast it travels, the book discusses how materials interact with light, how various materials affect the velocity of light, and the ramifications of change in the speed of light. The concept of the index of refraction, and how it is used with Snell's law to produce image forming systems, is developed. An ideal textbook for advanced undergraduate level courses in geometrical optics, this book will also interest those wanting to learn the concepts and theory of geometrical optics. Each chapter contains worked examples, and there are exercises to reinforce the reader's understanding of material.


Book
Advances in precision instruments and optical engineering : proceedings of the international conference on precision instruments and optical engineering, 2021
Authors: ---
ISBN: 9811672571 981167258X Year: 2022 Publisher: Gateway East, Singapore : Springer,

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This book highlights the new technologies and applications presented at the 2021 International Conference on Precision Instruments and Optical Engineering held in Chengdu, China from 25 to 27 August 2021. The conference aimed to provide a platform for researchers and professionals to share research findings, discuss cutting-edge technologies, promote collaborations and fuel the industrial transition of new technologies. The invited and contributed papers covered recent developments in optoelectronic devices, nanophotonic research, optoelectronic materials, precision instruments, intelligent instruments, laser technology, optical spectroscopy and other optical engineering topics. The book is intended for researchers, engineers and advanced students interested in precision instruments and optical engineering and their applications in diverse fields.


Book
Radio Engineering and Telecommunications Waveguide Systems in the Microwave Range : Modeling and Synthesis
Author:
ISBN: 3031379160 Year: 2024 Publisher: Cham : Springer Nature Switzerland : Imprint: Springer,

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The book systematizes numerical methods for modelling and synthesizing radio engineering and telecommunication systems in the microwave range of rectangular and circular waveguides. The author gives the theoretical foundations for the analysis and optimal synthesis of these systems and presents the results of new research. The book uses the HFSS complex to analyse, optimize, and synthesize microwave systems operating on E-type and H-type waves while providing the outcomes. As a result of analysis and synthesis, various microwave devices with improved technical and operational parameters have been developed, and on their basis a new system of waveguide paths is proposed that connects the transmitter and antenna in TV towers. The book is intended for engineers and scientists involved in the design of radio engineering and telecommunication systems. Systematizes numerical methods for modelling in the microwave range of rectangular and circular waveguides; Provides theoretical foundations for analysis and optimal synthesis of systems and presents the results of new research; Proposes a new system of waveguide paths that connects the transmitter and antenna in TV towers. .


Book
Fiber-Wireless Convergence in Next-Generation Communication Networks : Systems, Architectures, and Management
Authors: --- ---
Year: 2017 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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This book investigates new enabling technologies for Fi-Wi convergence. The editors discuss Fi-Wi technologies at the three major network levels involved in the path towards convergence: system level, network architecture level, and network management level. The main topics will be: a. At system level: Radio over Fiber (digitalized vs. analogic, standardization, E-band and beyond) and 5G wireless technologies; b. Network architecture level: NGPON, WDM-PON, BBU Hotelling, Cloud Radio Access Networks (C-RANs), HetNets. c. Network management level: SDN for convergence, Next-generation Point-of-Presence, Wi-Fi LTE Handover, Cooperative MultiPoint. • Addresses the Fi-Wi convergence issues at three different levels, namely at the system level, network architecture level, and network management level • Provides approaches in communication systems, network architecture, and management that are expected to steer the evolution towards fiber-wireless convergence • Contributions from leading experts in the field of Fiber-Wireless Convergence.

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