Fiber Optics Communication Gain Enhancement Of Erbium Doped Fiber Amplifier Using Amplified Spontaneous Emission

Author : Mohammad Yusuf
Publisher : GRIN Verlag
ISBN 13 : 3346302067
Total Pages : 61 pages
Book Rating : 4.69/5 ( download)

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Download or read book Fiber Optics Communication. Gain Enhancement of Erbium Doped Fiber Amplifier using Amplified Spontaneous Emission written by Mohammad Yusuf and published by GRIN Verlag. This book was released on 2020-11-24 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2019 in the subject Instructor Plans: Computing / Data Processing / IT / Telecommunication, , course: M.Tech, language: English, abstract: With the evolvement of high speed and long-distance data communication systems, conventional band erbium-doped fiber amplifiers (C-EDFAs) are getting more attention in recent times. Major advantage of the C-band EDFA is that it provides the user to realize a system with wide bandwidth of 40 nm. But, from the reported works, it is evident that for Gain enhancement in C-band using EDFA is reported with the use of multiple stages, multiple pumps, Gain flattening filters etc. However, these techniques suffered from high cost, complex techniques, and low performance. Here enhancement process was done through the narrowband Fiber Bragg Gratings (FBG) or fiber reflectors mirrors. In this work, a conventional band erbium doped fiber amplifier is proposed with high gain and less noise figure by incorporating the two fiber bragg gratings (FBGs) for amplified spontaneous noise reinjection. Maximum ASE is emerged at 1565 nm for the at -55 dBm carrier powers. Maximum gain is found out to be 48.16 dB with noise figure of 5.29 dBm. Fiber amplifiers are crucial and fast-growing field in the communication system. The study of this field show that the formulation procedures of lasers generation and amplifier amplification displays a problematical process due to the factors affecting and changing amplifier and laser significances in a dynamic way. Gain, noise figure, wavelength, power flatness and power output are directly affected by any element or parameter inside the amplifier configuration. The design parameters such as: erbium ions concentration, EDF length, isolators, wavelength division multiplexing (WDM) position, pump power position, circulators, pump directions, all of these elements and factors are affecting directly the amplifier output. EDFA is an amplifier that is best used because of its low loss and high gain. For communication, there are two windows 1530-1560nm(C-band) and 1560-1610nm (L-band).

Author : Mohammad Yusuf
Publisher : GRIN Verlag
ISBN 13 : 3346229653
Total Pages : 25 pages
Book Rating : 4.56/5 ( download)

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Download or read book Enhancement in the Gain of EDFA in Fiber Optic Communication written by Mohammad Yusuf and published by GRIN Verlag. This book was released on 2020-08-20 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2019 in the subject Instructor Plans: Computing / Data Processing / IT / Telecommunication, , course: M.Tech, language: English, abstract: Fiber amplifiers are a crucial and fast-growing field in the communication system. The study of this field show that the formulation procedures of lasers generation and amplifier amplification displays a problematical process due to the factors affecting and changing amplifier and laser significance in a dynamic way. Gain, noise figure, wavelength, power flatness and power output are directly affected by any element or parameter inside the amplifier configuration. The design parameters such as: erbium ions concentration, EDF length, isolators, wavelength division multiplexing (WDM) position, pump power position, circulators, pump directions, all of these elements and factors are affecting directly the amplifier output. EDFA is an amplifier that is best used because of its low loss and high gain. For communication, there are two windows 1530-1560nm(C-band) and 1560-1610nm (L-band).

Author : Cambyse Guy Omidyar
Publisher : World Scientific
ISBN 13 : 9814487015
Total Pages : 454 pages
Book Rating : 4.16/5 ( download)

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Download or read book Optical Communications And Networks (With Cd-rom): Proceedings Of The First International Conference On Icocn 2002 written by Cambyse Guy Omidyar and published by World Scientific. This book was released on 2002-10-23 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical communications networks are becoming increasingly important as there is demand for high capacity links. Dense wavelength division multiplexing (DWDM) is widely deployed at the core networks to accommodate high capacity transport systems. Optical components such as optical amplifiers, tunable filters, transceivers, termination devices and add-drop multiplexers are becoming more reliable and affordable. Access and metropolitan area networks are increasingly built with optical technologies to overcome the electronic bottleneck at network edges. New components and subsystems for very high speed optical networks offer new design options.The proceedings of the First International Conference on Optical Communications and Networks present high quality recent research results in the areas of optical communications, network components, architectures, protocols, planning, design, management and operation.

Author : Cambyse Guy Omidyar
Publisher : World Scientific
ISBN 13 : 9812776281
Total Pages : 454 pages
Book Rating : 4.80/5 ( download)

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Download or read book First International Conference on Optical Communications and Networks (ICOCN 2002) written by Cambyse Guy Omidyar and published by World Scientific. This book was released on 2002 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical communications networks are becoming increasingly important as there is demand for high capacity links. Dense wavelength division multiplexing (DWDM) is widely deployed at the core networks to accommodate high capacity transport systems. Optical components such as optical amplifiers, tunable filters, transceivers, termination devices and add-drop multiplexers are becoming more reliable and affordable. Access and metropolitan area networks are increasingly built with optical technologies to overcome the electronic bottleneck at network edges. New components and subsystems for very high speed optical networks offer new design options.The proceedings of the First International Conference on Optical Communications and Networks present high quality recent research results in the areas of optical communications, network components, architectures, protocols, planning, design, management and operation.

Author : Philippe M. Becker
Publisher : Elsevier
ISBN 13 : 0080505848
Total Pages : 482 pages
Book Rating : 4.48/5 ( download)

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Download or read book Erbium-Doped Fiber Amplifiers written by Philippe M. Becker and published by Elsevier. This book was released on 1999-03-15 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Erbium Fiber Amplifiers is a comprehensive introduction to the increasingly important topic of optical amplification. Written by three Bell Labs pioneers, the book stresses the importance of the interrelation of materials properties, optical properties, and systems aspects of optical fiber amplifiers. All disc-based content for this title is now available on the Web. Key Features * Explains the theory of noise in optically amplified systems in an intuitive way * The book contains a discussion of components used in amplifier fabrication and of the attendant technologies used in real systems * The book provides basic tools for amplifier design as well as systems engineering, including the latest developments in WDM and soliton systems * The book discusses the fundamentals of rare earth ions for the reader desiring more depth in the topic * The book is for either the novice of experienced reader * The chapter have links between them to allow the reader to understand the relationship between the amplifier characteristics, noise, and systems applications * The book contains extensive references

Author : Emmanuel Desurvire
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 804 pages
Book Rating : 4.13/5 ( download)

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Download or read book Erbium-Doped Fiber Amplifiers written by Emmanuel Desurvire and published by Wiley-Interscience. This book was released on 2002-08-19 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: How is light amplified in the doped fiber? How much spontaneous emission noise is generated at the output? Do detectors with optical preamplifiers outperform avalanche photodiodes? What are the current types and architectures of amplifier-based systems? These are just a handful of the essential questions answered in Erbium-Doped Fiber Amplifiers: Principles and Applications, the first book to integrate the most influential current papers on this breakthrough in fiber-optics technology. Written by one of the pioneers in the field, this unique reference has become an essential reference for telecommunication professionals. This new paperback edition provides researchers, engineers, and system designers with detailed, interdisciplinary coverage of the theoretical underpinnings, main characteristics, and primary applications of EDFAs. Packed with information on important system experiments and the best experimental results to date as well as over 1,400 references to the expanding literature. Book jacket.

Author : Marcin Michał Kożak
Publisher : Cuvillier Verlag
ISBN 13 : 3865377343
Total Pages : 179 pages
Book Rating : 4.40/5 ( download)

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Download or read book Development of Thulium-Doped Fluoride Fiber Amplifiers written by Marcin Michał Kożak and published by Cuvillier Verlag. This book was released on 2005-12-26 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is related to the spectroscopic and optical properties of doped optical fibers used as a laser amplifier for short laser pulses at high repetition rates emitting around 2 μm. Therefore short pulses created by a laser diode are amplified in thulium-doped optical fibers combining the benefits of a direct electronic control of the laser diodes' parameters and the robust setup of an optical fiber system that can easily be integrated. After the development of a high-current pulse generator especially adapted to the 2 μm laser diodes used, pulses of > 7 ns with peak powers in the Watt range could be generated. Due to the modal behaviour of these laser diodes only 2 mW of peak power could be launched into a single-mode fiber. By comparing different fiber glasses, a heavy metal fluoride glass could be identified as the optimum host for the ions thulium and holmium emitting around 2 μm. Due to the development of a numerical simulation tool based on rate equations and radiation transport equations the fiber parameters such as core diameter, fiber length etc. could be optimized, minimizing the amplified spontaneous emission (ASE) created inside the fiber. Based on this simulation a laser system consisting of cascaded fiber amplifiers could be realized. I emits short laser pulses (20-30 ns) at high repetition rates (up to 125 kHz) and peak powers of up to 5 kW. In contrast to Q-switched lasers the pulse width created is independent of the repetition rate. By using these pulses at 1.87 μm as an optical pump for a Cr2+:ZnSe laser, efficiencies of up to 22% could be reached at an emission wavelength of 2.5 μm.

Author : Ayman Elmassarawy
Publisher : Ayman Elmassarawy
ISBN 13 :
Total Pages : 421 pages
Book Rating : 4./5 ( download)

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Download or read book Light Waves and Data Streams: A Comprehensive Guide to Fiber Optic Communication written by Ayman Elmassarawy and published by Ayman Elmassarawy. This book was released on 2024-03-13 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delves into the fascinating world of fiber optic cables, the unsung heroes of today's information age. It takes you on a comprehensive journey, exploring the intricate characteristics of these cables and their transformative role in communication networks, particularly within data centers and mobile technologies. The book provides a comprehensive exploration of fiber optic cables, with a focus on their design, operation, and impact on communication networks. It delves into the fundamental principles of light propagation in optical fibers and covers a range of topics, from the physics of light to the advantages of optical fibers in communication networks. It also addresses the challenges and opportunities presented by different types of optical fibers and their applications in modern technologies. Chapter 1 delves into the comprehensive exploration of optical fiber technology. It covers the foundational principles of optical fiber structures and light guiding principles, the evolution of the technology, the superiority of fiber optic communication systems over traditional copper-based systems, specialty optical fibers, and their unique applications, and the transformative impact of optical fiber technologies on communication networks. Chapter 2 delves into the physics of light propagation in optical fibers. It explores the concept of light from both wave and ray perspectives, gaining a deeper understanding of its behavior. The chapter also covers the crucial role of the refractive index and reflection coefficient in guiding light through the fiber core, as well as the intricacies of light propagation as it interacts with varying refractive indices within the fiber. Chapter 3 focuses on the challenges encountered during light propagation in optical fibers. It includes a comprehensive examination of the fiber optic cable structure, exploring its various components. The chapter also explores the intricacies of a fiber optic communication system, with a particular focus on the crucial role of Total Internal Reflection in guiding light along the desired path, and the concept of attenuation, a primary challenge in fiber optic communication, and how it affects signal strength. Chapter 4 takes a closer look at the design, protection, and environment-specific solutions employed in fiber optic cables. It offers a scientific exploration of fiber optic cable design, analyzing the different components and their contributions to overall functionality. The chapter also provides a detailed focus on outdoor cables, fiber optic connectors, the intricate details of fiber optic connectors, highlighting the importance of precision engineering, durable materials, tools, and splicing equipment for fiber optic network installation and maintenance. Chapter 5 introduces the essential elements of a fiber optic communication system – the light sources and detectors. The chapter provides a foundational overview of different fiber optic cable categories and dives into the concept of refractive index profiles and its crucial role in determining light propagation characteristics. It also explores the underlying principles of light emission, the role of energy bands, and the fundamental differences between LEDs and lasers, as well as an in-depth analysis of edge-emitting, including their quantum efficiency and light generation mechanisms and scientific breakdown of Laser Diodes and Avalanche Photodiodes. Chapter 6 delves into the realm of Dense Wave Division Multiplexing (DWDM), a revolutionary technology that has significantly increased the capacity of fiber optic communication networks. The chapter offers a clear introduction to the concept of WDM and its relationship with the structure of optical fibers. It also explores various passive and active optical components, the science behind active optical components, fiber optic transmission systems, and microwave over fiber optics links, and the key technologies driving DWDM advancements.

Author : Jefferson L. Wagener
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.87/5 ( download)

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Download or read book Erbium Doped Fiber Sources and Amplifiers for Optical Fiber Sensors written by Jefferson L. Wagener and published by . This book was released on 1996 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Jeff Hecht
Publisher : John Wiley & Sons
ISBN 13 : 1119310644
Total Pages : 608 pages
Book Rating : 4.48/5 ( download)

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Download or read book Understanding Lasers written by Jeff Hecht and published by John Wiley & Sons. This book was released on 2018-12-27 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The expanded fourth edition of the book that offers an essential introduction to laser technology and the newest developments in the field The revised and updated fourth edition of Understanding Lasers offers an essential guide and introduction that explores how lasers work, what they do, and how they are applied in the real world. The author—a Fellow of The Optical Society—reviews the key concepts of physics and optics that are essential for understanding lasers and explains how lasers operate. The book also contains information on the optical accessories used with lasers. Written in non-technical terms, the book gives an overview of the wide-variety laser types and configurations. Understanding Lasers covers fiber, solid-state, excimer, helium-neon, carbon dioxide, free-electron lasers, and more. In addition, the book also explains concepts such as the difference between laser oscillation and amplification, the importance of laser gain, and tunable lasers. The updated fourth edition highlights the most recent research and development in the field. This important resource: Includes a new chapter on fiber lasers and amplifiers Reviews new topics on physics of optical fibers and fiber lasers, disk lasers, and Ytterbium lasers Contains new sections on Laser Geometry and Implications, Diode Laser Structures, Optimal Parametric Sources, and 3D Printing and Additive Manufacturing Puts the focus on research and emerging developments in areas such as spectroscopy, slow light, laser cooling, and extremely precise measurements Contains appendices, glossary, and index that help make this book a useful reference Written for engineering and physics students, engineers, scientists, and technicians, the fourth edition of Understanding Lasers contains the basic concepts of lasers and the most recent advances in the technology.