Studies On Polarization State Control In Coherent Optical Fiber Communications

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Studies On Polarization State Control In Coherent Optical Fiber Communications

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Author : Vuthichai Napasab
language : en
Publisher:
Release Date : 1988

Studies On Polarization State Control In Coherent Optical Fiber Communications written by Vuthichai Napasab and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Automatic control categories.

In this dissertation, the polarization-state control in coherent optical fiber communications is studied. A new automatic polarization-state control scheme called "polarization recombing" is proposed and experimentally verified. The system consists of a polarization beam splitter (a Wallaston prism), a 90° linear polarization rotator, and endless phase shifter, and a beam combiner. It features a very simple (probably the simplest) principle for polarization-state control and endlessness (resetting-free) in control is achieved. IN addition, in this scheme, the polarization-state of output light is always linear with a fixed inclination angle regardless of changes in the polarization-state of the incoming light. Such a characteristic is achieved without the aid of a polarimeter and is particularly useful in homodyne phase diversity receiver because a stable linearly polarized light is necessary for generating two lights having 90° phase difference. This feature has been demonstrated in simulated self-homodyne DPSK phase diversity receiver. It is fund that the scheme functions satisfactorily and the receiver sensitivity fluctuation is kept within 0.5 dB. at 200 Mbits/sec.

Polarization Measurement And Control In Optical Fiber Communication And Sensor Systems

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Author : X. Steve Yao
language : en
Publisher: John Wiley & Sons
Release Date : 2022-11-01

Polarization Measurement And Control In Optical Fiber Communication And Sensor Systems written by X. Steve Yao 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 2022-11-01 with Science categories.

A practical handbook covering polarization measurement and control in optical communication and sensor systems In Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems, the authors deliver a comprehensive exploration of polarization related phenomena, as well as the methodologies, techniques, and devices used to eliminate, mitigate, or compensate for polarization related problems and impairments. The book also discusses polarization-related parameter measurement and characterization technologies in optical fibers and fiber optic devices and the utilization of polarization to solve problems or enable new capabilities in communications, sensing, and measurement systems. The authors provide a practical and hands-on treatment of the information that engineers, scientists, and graduate students must grasp to be successful in their everyday work. In addition to coverage of topics ranging from the use of polarization analysis to obtain instantaneous spectral information on light sources to the design of novel fiber optic gyroscopes for rotation sensing, Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems offers: A thorough introduction to polarization in optical fiber studies, including a history of polarization in optical fiber communication and sensor systems. Comprehensive discussions of the fundamentals of polarization, including the effects unique to optical fiber systems, as well as extensive coverage Jones and Mueller matrix calculus for polarization analysis. In-depth treatments of active polarization controlling devices for optical fiber systems, including polarization controllers, scramblers, emulators, switches and binary polarization state generators Fulsome explorations of passive polarization management devices, including polarizers, polarization beam splitters/displacers, wave-plates, Faraday rotators, and depolarizers. Extensive review of polarization measurement techniques and devices, including time-division, amplitude-division, and wave-front division Stokes polarimeters, as well as various Mueller matrix polarimeters for PMD, PDL and birefringence measurements. Premiere of binary polarization state analyzers and binary Mueller matrix polarimeters pioneered by the authors, including their applications for highly sensitive PMD, PDL, and birefringence measurements. Comprehensive discussion on distributed polarization analysis techniques developed by the authors, including their applications in solving real world problems. Detailed descriptions of high accuracy polarimetric fiber optic electric current and magnetic field sensors. Perfect for professional engineers, scientists, and graduate students studying fiber optics, Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems enables one to quickly grasp extensive knowledge and latest development of polarization in optical fibers and will earn a place in the libraries of professors and teachers of photonics and related disciplines.

Coherent Optical Wireless Communication Principle And Application

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Author : Xizheng Ke
language : en
Publisher: Springer Nature
Release Date : 2023-01-01

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 2023-01-01 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.

Endless State Of Polarization Control For Coherent Optical Communication Systems Using Nematic Liquid Crystals

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Author : Scott H. Rumbaugh
language : en
Publisher:
Release Date : 1990

Endless State Of Polarization Control For Coherent Optical Communication Systems Using Nematic Liquid Crystals written by Scott H. Rumbaugh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Algorithms categories.

Coherent Optical Fiber Communications

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Author : T. Okoshi
language : en
Publisher: Springer Science & Business Media
Release Date : 1988-07-31

Coherent Optical Fiber Communications written by T. Okoshi 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 1988-07-31 with Technology & Engineering categories.

Polarization Optics In Telecommunications

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Author : Jay N. Damask
language : en
Publisher: Springer
Release Date : 2005-08-25

Polarization Optics In Telecommunications written by Jay N. Damask and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-08-25 with Science categories.

I have written this book to ?ll a void between theory and practice, a void that Iperceivedwhileconductingmyownresearchanddevelopmentofcomponents and instruments over the last ?ve years. In the chapters that follow I have pulled materials from the technical and patent literature that are relevant to the understanding and practice of polarization optics in telecommuni- tions, material that is often known by the respective experts in industry and academia but is rarely if ever found in one place. By bringing this material intoonemonograph,andbyapplyingasingleformalismthroughout,Ihopeto create a “base level” upon which future research and development can grow. Polarization optics in telecommunications is an ever-evolving ?eld. Each yearsigni?cantadvancementsaremade,punctuatedbyimportantdiscoveries. The references upon which this book is based are only a snap-shot in time. Areasthatremainunresolvedatthetimeofpublicationmayverywellbecl- i?ed in the years to come. Moreover, the focus of the ?eld changes in time: for instance, there have been few passive nonreciprocal component advancements reported in the last few years, but PMD and PDL advancement continues with only modest abatement.

Endless State Of Polarization Control For Coherent Optical Communication Systems Using Nematic Liquid Crystals

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Author : Scott H. Rumbaugh
language : en
Publisher:
Release Date : 1990

Endless State Of Polarization Control For Coherent Optical Communication Systems Using Nematic Liquid Crystals written by Scott H. Rumbaugh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Algorithms categories.

Essentials Of Modern Optical Fiber Communication

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Author : Reinhold Noé
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-03-15

Essentials Of Modern Optical Fiber Communication written by Reinhold Noé 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 2010-03-15 with Technology & Engineering categories.

This book covers important aspects of modern optical communication. It is intended to serve both students and professionals. Consequently, a solid coverage of the necessary fundamentals is combined with an in-depth discussion of recent relevant research results. The book has grown from lecture notes over the years, starting 1992. It accompanies my present lectures Optical Communication A (Fundamentals), B (Mode Coupling), C (Modulation Formats) and D (Selected Topics) at the University of Paderborn, Germany. I gratefully acknowledge contributions to this book from Dr. Timo Pfau, Dr. David Sandel, Dr. Sebastian Hoffmann and Mohamed El-Darawy. Contents Contents 1 Introduction............................................................................ . . 1 2 Optical Waves in Fibers and Components.......................................3 2. 1 Electromagnetic Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. 1. 1 Maxwell’s Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. 1. 2 Boundary Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2. 1. 3 Wave Equation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2. 1. 4 Homogeneous Plane Wave in Isotropic Homogeneous Medium. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2. 1. 5 Power and Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2. 2 Dielectric Waveguides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2. 2. 1 Dielectric Slab Waveguide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2. 2. 2 Cylindrical Dielectric Waveguide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2. 3 Polarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 2. 3. 1 Representing States-of-Polarization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 2. 3. 2 Anisotropy, Index Ellipsoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 2. 3. 3 Jones Matrices, Müller Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 2. 3. 4 Monochromatic Polarization Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 2. 3. 5 Polarization Mode Dispersion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 2. 4 Linear Electrooptic Effect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 2. 4. 1 Phase Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 2. 4. 2 Soleil-Babinet Compensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 2. 5 Mode Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 2. 5. 1 Mode Orthogonality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 2. 5. 2 Mode Coupling Theory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Advanced Optical And Wireless Communications Systems

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Author : Ivan B. Djordjevic
language : en
Publisher: Springer
Release Date : 2017-12-28

Advanced Optical And Wireless Communications Systems written by Ivan B. Djordjevic and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-28 with Technology & Engineering categories.

This textbook introduces the advanced topics of: (i) wireless communications, (ii) free-space optical (FSO) communications, (iii) indoor optical wireless (IR) communications, and (iv) fiber-optics communications and presents these different types of communication systems in a unified fashion for better practical use. 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 are first described and then followed 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, 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 course in optical communication. It features problems, an appendix with all background material needed, and homework.

Polarized Light In Fiber Optics

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Author : Edward Collett
language : en
Publisher: SPIE Press
Release Date : 2003

Polarized Light In Fiber Optics written by Edward Collett and has been published by SPIE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.

This book is both a coherent exposition and an in-depth mathematical analysis of polarized light in fiber optics. It also is an essential reference for scientists, optical and electrical engineers, optical physicists, and researchers working in the field of fiber optics and in related optical fields. Upper-level undergraduate, graduate, and continuing-education students will refer to it again and again.