Spatial Optical Fiber Coupling Technology In Optical Wireless Communication
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Spatial Optical Fiber Coupling Technology In Optical Wireless Communication
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Author : Xizheng Ke
language : en
Publisher:
Release Date : 2023
Spatial Optical Fiber Coupling Technology In Optical Wireless Communication written by Xizheng Ke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
This book analyzes the development of space light-fiber coupling research, highlights its importance, examines the underlying theory and key problems, and elaborates on methods to improve the space light-fiber coupling efficiency. Starting from the basic theory of electromagnetic field, the transmission characteristics of light in optical fibers are expounded, and the coupling characteristics of optical signals of different modes are investigated. The spatial light-fiber coupling techniques such as mode conversion method, lens coupling method, and wavefront distortion correction method are discussed in detail, and the key technologies involved are verified by experiments. This book is suitable for the vast majority of engineering and technical personnel and teachers in colleges and institutions who are engaged in wireless optical communication. It can also be used to train senior undergraduates and graduate students in relevant fields.
Spatial Optical Fiber Coupling Technology In Optical Wireless Communication
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2023-07-01
Spatial Optical Fiber Coupling Technology In Optical Wireless Communication written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-01 with Technology & Engineering categories.
This book analyzes the development of space light-fiber coupling research, highlights its importance, examines the underlying theory and key problems, and elaborates on methods to improve the space light-fiber coupling efficiency. Starting from the basic theory of electromagnetic field, the transmission characteristics of light in optical fibers are expounded, and the coupling characteristics of optical signals of different modes are investigated. The spatial light-fiber coupling techniques such as mode conversion method, lens coupling method, and wavefront distortion correction method are discussed in detail, and the key technologies involved are verified by experiments. This book is suitable for the vast majority of engineering and technical personnel and teachers in colleges and institutions who are engaged in wireless optical communication. It can also be used to train senior undergraduates and graduate students in relevant fields.
Handbook Of Optical Wireless Communication
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2024-08-02
Handbook Of Optical Wireless Communication written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-02 with Technology & Engineering categories.
The book focuses on optical wireless communication systems. It summarises the author's work on optical wireless communication during the implementation of relevant scientific research plans. The main contents include the research status and progress of optical wireless communication, including the author's own work in this field and the research progress of domestic and foreign scholars in related fields. The key technologies, key components, modulation and coding methods, influencing factors of coherent optical communication, underwater optical communication, visible light communication, and orbital angular momentum involved in wireless optical communication are analysed, and their research progress and development trends are presented. It is particularly suitable for readers interested in the field of wireless optical communications. This book can benefit researchers, engineers and graduate students in the field of telecommunications. Suitable for engineering and technical personnel involved in optical communications, university teachers, postgraduate students and advanced undergraduates.
Performance Improvement Limits In Optical Wireless Coherent Communication
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2025-03-14
Performance Improvement Limits In Optical Wireless Coherent Communication written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-14 with Technology & Engineering categories.
This book presents some of the recent developments in the field of optical-wireless coherence communication. The factors affecting the coherence detection sensitivity are analyzed and the approach to approximate the coherence detection limit is discussed. The wavefront distortion caused by atmospheric turbulence is analyzed, and the influence of the wavefront distortion on the coherence detection performance is examined. A new concept of vortex-beam coherence-detection is proposed, and the problem of signal light decomposition into partially coherent light detection is analyzed. This book can benefit researchers, engineers, and graduate students in the field of telecommunications. It is suitable for engineering and technical personnel engaged in applied optics and communications engineering, university teachers, graduate students, and senior undergraduates.
Coherent Optical Wireless Communication Principle And Application
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2022-11-30
Coherent Optical Wireless Communication Principle And Application written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-30 with Technology & Engineering categories.
This book presents the key technologies of coherent optical wireless communication, covers topics such as beam coupling, signal optical polarization control and distorted wavefront correction. It discusses the principle of coherent optical communication and heterodyne detection conditions. In this book, the array coupling receiving technology and large aperture coupling technology are introduced to realize the spatial optical fiber coupling; simulated annealing algorithm, particle swarm optimization algorithm and SPO algorithm are used to control the polarization state of the signal beam; and the correction of distorted wavefront of the signal beam by adaptive optics technology and wavefront sensorless adaptive optics technology are analyzed, and the influence of beam mode on coherent detection performance is elaborated. Both theoretical deduction and experimental results are included in this book, which can help readers further understand the theoretical knowledge.
Space Time Coding Theory In Optical Wireless Mimo Systems
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2025-06-16
Space Time Coding Theory In Optical Wireless Mimo Systems written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-06-16 with Technology & Engineering categories.
This book is divided into 12 chapters, including introduction, multi-aperture transmit/receive technology in turbulent atmosphere, channel model and channel capacity, orthogonal space-time block coding, layered space-time coding, hybrid space-time coding, space-time trellis coding, differential space-time coding, unitary space-time coding, adaptive layered space-time coding, performance analysis of indoor MIMO-VLC system, and detection algorithm of MIMO technology. The key technologies of wireless optical MIMO systems are introduced, and the basic framework of space-time coding of wireless optical MIMO systems is proposed.
Optical Wireless Communication
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2022-07-01
Optical Wireless Communication written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-01 with Technology & Engineering categories.
The book gives a detailed description of optical wireless communication (OWC), including optical laser communication, visible light communication, ultraviolet communication, underwater optical communication and future communication technologies. To achieve an integration between theory and practice, the book avoids tedious mathematical deductions and includes theoretical materials as exercises. Most of the exercises are originated from published journal articles. These exercises will aid the readers in understanding the basic concept and methods and evaluating their knowledge acquisition in the field of OWC. The book is structured into Ten chapters that covers main aspects of OWC: - Optical wireless communication system - Coherent optical communication - Modulation, demodulation, and coding - Atmospheric channel, channel estimation, and channel equalization - White LED communication - Underwater laser communication - Ultraviolet communication - Acquisition, aiming, and tracking technology - Partially coherent optical transmission - Optical communication in the future The book is a suitable reference for undergraduate or postgraduate students majored in communication engineering, electronic information engineering or computer science, as well as the engineers and technicians in related fields.
Adaptive Optics Theory And Its Application In Optical Wireless Communication
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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2022-03-23
Adaptive Optics Theory And Its Application In Optical Wireless Communication written by Xizheng Ke and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-23 with Technology & Engineering categories.
This book introduces in detail the theory of adaptive optics and its correction technology for light wave distortion in wireless optical communication. It discusses the adaptive control algorithm of wavefront distortion, proportional+integral control algorithm and iterative control algorithm, and double fuzzy adaptive PID control algorithm. It also covers the SPGD algorithm of adaptive optics correction, deformable mirrors eigenmode method of wavefront aberration correction, vortex beam wavefront detecting wavefront aberration correction, liquid crystal spatial light modulator wavefront correction, different wavelengths of Gaussian beam transmission wavefront differences in the atmospheric turbulence and correction and with wavefront tilt correction adaptive optics wavefront aberration correction. Various distortion correction methods are verified by experiments and the experimental results are analyzed. This book is suitable for engineering and technical personnel engaged in wireless optical communication, college teachers, graduate students and senior undergraduate students.
Optical Wireless Communications For Broadband Global Internet Connectivity
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Author : Arun K. Majumdar
language : en
Publisher: Elsevier
Release Date : 2018-10-19
Optical Wireless Communications For Broadband Global Internet Connectivity written by Arun K. Majumdar and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-19 with Science categories.
Optical Wireless Communications for Broadband Global Internet Connectivity: Fundamental and Potential Applications provides a comprehensive overview for readers who require information about the fundamental science behind optical wireless communications, as well as up-to-date advanced knowledge of the state-of-the-art technologies available today. The book is a useful resource for scientists, researchers, engineers and students interested in understanding optical, wireless communication systems for global channels. Readers will find beneficial knowledge on how related technologies of optical wireless communications can be integrated into achieving worldwide Internet connectivity. - Presents an in-depth coverage of information on optical wireless communication in a single source - Combines the fundamentals with the most recent advanced technology of achieving global Internet access and connectivity - Provides derivations of the mathematical equations - Includes between chapter sections where information and learning from one chapter is connected to other chapters
Advanced Optical And Wireless Communications Systems
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Author : Ivan B. Djordjevic
language : en
Publisher: Springer Nature
Release Date : 2022-06-21
Advanced Optical And Wireless Communications Systems written by Ivan B. Djordjevic and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-21 with Technology & Engineering categories.
The new edition of this popular textbook keeps its structure, introducing the advanced topics of: (i) wireless communications, (ii) free-space optical (FSO) communications, (iii) indoor optical wireless (IR) communications, and (iv) fiber-optics communications, but thoroughly updates the content for new technologies and practical applications. The author presents fundamental concepts, such as propagation principles, modulation formats, channel coding, diversity principles, MIMO signal processing, multicarrier modulation, equalization, adaptive modulation and coding, detection principles, and software defined transmission, first describing them and then following up with a detailed look at each particular system. The book is self-contained and structured to provide straightforward guidance to readers looking to capture fundamentals and gain theoretical and practical knowledge about wireless communications, free-space optical communications, and fiber-optics communications, all which can be readily applied in studies, research, and practical applications. The textbook is intended for an upper undergraduate or graduate level courses in fiber-optics communication, wireless communication, and free-space optical communication problems, an appendix with all background material needed, and homework problems. In the second edition, in addition to the existing chapters being updated and problems being inserted, one new chapter has been added, related to the physical-layer security thus covering both security and reliability issues. New material on 5G and 6G technologies has been added in corresponding chapters.