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Modeling And Simulation Of Dynamic Performance Of Erbium Doped Fiber Amplifier In Wavelength Division Multiplexing Systems
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Book Synopsis Modeling and Simulation of Dynamic Performance of Erbium Doped Fiber Amplifier in Wavelength Division Multiplexing Systems by : Zhaohui Zheng
Download or read book Modeling and Simulation of Dynamic Performance of Erbium Doped Fiber Amplifier in Wavelength Division Multiplexing Systems written by Zhaohui Zheng and published by . This book was released on 2002 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fiber Optics Communication. Gain Enhancement of Erbium Doped Fiber Amplifier using Amplified Spontaneous Emission by : Mohammad Yusuf
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).
Book Synopsis Erbium-Doped Fiber Amplifiers by : Emmanuel Desurvire
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.
Book Synopsis Simulation and performance analysis of digital systems using erbium-doped fiber amplifiers by :
Download or read book Simulation and performance analysis of digital systems using erbium-doped fiber amplifiers written by and published by . This book was released on 1909 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Os amplificadores a fibra dopada com érbio (EDFAs) têm se mostrado como uma alternativa bastante atraente para aumentar a capacidade de sistemas de comunicações por fibras ópticas operando na terceira janela de transmissão de fibras convencionais (lambda = 1.55 mi m). Consideráveis esforços têm sido direcionados ao aprimoramento do desempenho desses dispositivos. O potencial de aplicação em telecomunicações é grande e motiva o estudo do desempenho dos enlaces com o uso de EDFAs. A maior parte das contribuições teóricas sobre influência de amplificadores ópticos no desempenho dos receptores consiste de métodos que são fáceis de usar mas muito aproximado o que pode conduzir a estimativas bastantes imprecisas -, ou muito precisos mas de utilização extremamente difícil devido a uma complexidade inerente. São apresentados modelos para a simulação de sistemas de comunicações ópticos digitais que consideram as perdas no sinal e as distorções da forma de onda devidas ao efeito combinado do chirping do laser, da dispersão da fibra e da largura de banda finita do receptor. É proposta uma nova abordagem para o cálculo da taxa de erro do sistema e da sensibilidade, que possui a precisão e a simplicidade desejadas. O método desenvolvido considera a interferência intersimbólica (causada pelas distorções) e das contribuições de ruídos dos amplificadores, utilizando-se o método semi-analítico. Esses modelos e o método desenvolvido foram utilizados para introduzir a simulação de sistemas ópticos com EDFAs em um programa já existente de análise de sistemas. Foram realizadas simulações para avaliar as contribuições dos diversos parâmetros dos EDFAs e as implicações de algumas propriedades do sistema no desempenho total do sistema óptico. A comparação com resultados de análises rigorosas, encontrados na literatura, validou a abordagem proposta.
Book Synopsis Enhancement in the Gain of EDFA in Fiber Optic Communication by : Mohammad Yusuf
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).
Book Synopsis Spatially Integrated Erbium-doped Fiber Amplifiers Enabling Space-division Multiplexing by : Cang Jin
Download or read book Spatially Integrated Erbium-doped Fiber Amplifiers Enabling Space-division Multiplexing written by Cang Jin and published by . This book was released on 2016 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exponential increase of communication bandwidth demand is giving rise to the so-called 'capacity crunch' expected to materialize within the next decade. Due to the nonlinear limit of the single mode fiber predicted by the information theory, all the state-of-the-art techniques which have so far been developed and utilized in order to extend the optical fiber communication capacity are exhausted. The spatial domain of the lightwave links is proposed as a new degree of freedom that can be employed to increase the number of transmission paths and, subsequently, overcome the looming 'capacity crunch'. Therefore, the emerging technique named space-division multiplexing (SDM) is a promising candidate for creating next-generation optical networks. To realize SDM in optical fiber links, one needs to investigate novel spatially integrated devices, equipment, and subsystems. Among these elements, the SDM amplifier is a critical subsystem, in particular for the long-haul transmission system. Due to the excellent features of the erbium-doped fiber amplifier (EDFA) used in current state-of-the-art systems, the EDFA is again a prime candidate for implementing practical SDM amplifiers. However, since the SDM introduces a spatial variation of the field in the transverse plane of the optical fibers, spatially integrated erbium-doped fiber amplifiers (SIEDFA) require a careful design. In this thesis, we firstly review the recent progress in SDM, in particular, the SDM optical amplifiers. Next, we identify and discuss the key issues of SIEDFA that require scientific investigation. After that, the EDFA theory is briefly introduced and a corresponding numerical modeling that can be used for simulating the SIEDFA is proposed. Based on a home-made simulation tool, we propose a novel design of an annular based doping profile of few-mode erbium-doped fibers (FM-EDF) and numerically evaluate the performance of single stage as well as double-stage few-mode erbium-doped fiber amplifiers (FM-EDFA) based on such fibers. Afterward, we design annular-cladding erbium-doped multicore fibers (MC-EDF) and numerically evaluate the cladding pumped multicore erbium-doped fiber amplifier (MC-EDFA) based on these fibers as well. In addition to fiber design, we fabricate and characterize a multicore few-mode erbium-doped fiber (MC-FM-EDF), and perform the first demonstration of the spatially integrated optical fiber amplifiers incorporating such specialty doped fibers. Finally, we present the conclusions as well as the perspectives of this research. In general, the investigation and development of the SIEDFA will bring tremendous benefits not only for future SDM transmission systems but also for current state-of-the-art single-mode single-core transmission systems by replacing plural amplifiers by one integrated amplifier.
Book Synopsis Optically Amplified WDM Networks by : John Zyskind
Download or read book Optically Amplified WDM Networks written by John Zyskind and published by Academic Press. This book was released on 2011-01-26 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of wavelength routing and dynamic, reconfigurable optical networks, new demands are being made in the design and operation of optical amplifiers. This book provides, for the first time, a comprehensive review of optical amplifier technology in the context of these recent advances in the field. It demonstrates how to manage the trade-offs between amplifier design, network architecture and system management and operation. The book provides an overview of optical amplifiers and reconfigurable networks before examining in greater detail the issues of importance to network operators and equipment manufacturers, including 40G and 100G transmission. Optical amplifier design is fully considered, focusing on fundamentals, design solutions and amplifier performance limitations. Finally, the book discusses other emerging applications for optical amplifiers such as optical networks for high data rate systems, free space systems, long single span links and optical digital networks. This book will be of great value to R&D engineers, network and systems engineers, telecommunications service providers, component suppliers, industry analysts, network operators, postgraduate students, academics and anyone seeking to understand emerging trends in optical networks and the consequent changes in optical amplifier design, features and applications. Provides an in depth and focused review of the new reconfigurable network architecture and its impact on optical amplifiers Addresses 40G and 100G transmission and networking Written by experts in the field with deep technical knowledge and practical experience of commercial practice and concerns
Book Synopsis Simulation of Multiplexing System Using Erbium Doped Fiber Amplifier by : Hussein Mohammad
Download or read book Simulation of Multiplexing System Using Erbium Doped Fiber Amplifier written by Hussein Mohammad and published by . This book was released on 2011-11 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Erbium Doped Fiber Amplifier (EDFA) in Dense Wavelength Division Multiplexing (DWDM) by :
Download or read book Erbium Doped Fiber Amplifier (EDFA) in Dense Wavelength Division Multiplexing (DWDM) written by and published by . This book was released on 2009 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Erbium-Doped Fiber Amplifiers, 2 Volume Set by : Emmanuel Desurvire
Download or read book Erbium-Doped Fiber Amplifiers, 2 Volume Set written by Emmanuel Desurvire and published by Wiley-Interscience. This book was released on 2002-08-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Erbium-doped fiber amplifiers are an important technology for lightwave voice, video, and data transmission. The first volume of Erbium-Doped Fiber Amplifiers: Principles and Applications offered an important exploration of the then-infant technology of erbium-doped fiber amplifiers. The passage of the 1996 Telecommunications Act and the growth of the Internet have sparked intense demand for expanded bandwidth in all network layers, resulting in significant advances in EFDA technology. Erbium-Doped Fiber Amplifiers: Device and System Developments brings telecommunications professionals up to date. Combining the contributions from four international experts in EDFAs, this new volume expands the reader's conceptual understanding of EDFAs and covers the developmental issues of EDFAs that are relevant to modern telecom applications. The authors review: New aspects in EDFA modeling, including the standard confined-doping, the transcendental-power-equation, and average-inversion-level models Design concepts for EDFAs in terrestrial and submarine WDM systems Transmission fiber design and dispersion-management techniques for terabit/s systems Amplified submarine-cable systems, including a brief history of submarine cable communications and the investigation of terabit/s system technologies Advanced concepts in the physics of noise in amplified light, noise figure definitions, entropy and ultimate capacity limits Delving into fundamental concepts (including a wealth of previously unpublished materials) as well as important breakthroughs, this much-needed resource will place telecom engineers in a position to take advantage of every aspect in the broad potential of EDFAs. "The book is an indispensable reference for researchers, development engineers, and system designers in fiber-optic communications. . . . It will excel as an introductory text in upper-level undergraduate and graduate courses on system applications of fiber optics." --Optik "One of the most comprehensive and detailed accounts of the physics and fundamental principles of erbium-doped fiber amplifiers. . . . I do not hesitate to recommend the book enthusiastically to anyone having an interest in EDFAs and their applications." --Physics Today
Book Synopsis Optical Fiber Communication Systems with MATLAB® and Simulink® Models, Second Edition by : Le Nguyen Binh
Download or read book Optical Fiber Communication Systems with MATLAB® and Simulink® Models, Second Edition written by Le Nguyen Binh and published by CRC Press. This book was released on 2014-12-01 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carefully structured to instill practical knowledge of fundamental issues, Optical Fiber Communication Systems with MATLAB® and Simulink® Models describes the modeling of optically amplified fiber communications systems using MATLAB® and Simulink®. This lecture-based book focuses on concepts and interpretation, mathematical procedures, and engineering applications, shedding light on device behavior and dynamics through computer modeling. Supplying a deeper understanding of the current and future state of optical systems and networks, this Second Edition: Reflects the latest developments in optical fiber communications technology Includes new and updated case studies, examples, end-of-chapter problems, and MATLAB® and Simulink® models Emphasizes DSP-based coherent reception techniques essential to advancement in short- and long-term optical transmission networks Optical Fiber Communication Systems with MATLAB® and Simulink® Models, Second Edition is intended for use in university and professional training courses in the specialized field of optical communications. This text should also appeal to students of engineering and science who have already taken courses in electromagnetic theory, signal processing, and digital communications, as well as to optical engineers, designers, and practitioners in industry.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photonic MEMS Devices by : Ai-Qun Liu
Download or read book Photonic MEMS Devices written by Ai-Qun Liu and published by CRC Press. This book was released on 2018-10-08 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic MEMS devices represent the next major breakthrough in the silicon revolution. While many quality resources exist on the optic and photonic aspect of device physics, today’s researchers are in need of a reference that goes beyond to include all aspects of engineering innovation. An extension on traditional design and analysis, Photonic MEMS Devices: Design, Fabrication, and Control describes a broad range of optical and photonic devices, from MEMS optical switches and bandgap crystal switches to optical variable attenuators (VOA) and injection locked tunable lasers. It deals rigorously with all these technologies at a fundamental level, systematically introducing critical nomenclature. Each chapter also provides analysis techniques, equations, and experimental results. The book focuses not only on traditional design analysis, but also provides extensive background on realistic simulation and fabrication processes. With a clear attention to experimental relevance, this book provides the fundamental knowledge needed to take the next-step in integrating photonic MEMS devices into commercial products and technology.
Book Synopsis Erbium-Doped Fiber Amplifier Gain Module Performance and Characteristic Analysis by : Hongseok Shin
Download or read book Erbium-Doped Fiber Amplifier Gain Module Performance and Characteristic Analysis written by Hongseok Shin and published by . This book was released on 1997 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Efficient Modeling and Simulation of Wavelength Division Multiplexing Dual Polarization QPSK Optical Fiber Transmission by : Siva Kumar Raju Nadimpalli
Download or read book Efficient Modeling and Simulation of Wavelength Division Multiplexing Dual Polarization QPSK Optical Fiber Transmission written by Siva Kumar Raju Nadimpalli and published by . This book was released on 2016 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to enormous growth in communications, wavelength division multiplexing (WDM) systems are popular because these systems allow us to expand the capacity of the networks without laying more optical fiber cables. In this thesis, we have systematically derived the coupled nonlinear Schrödinger (CNLS) equations, including a consistent definition of the complex envelope, Fourier transform, the state of polarization, and derivation under the engineering notation. After a discussion of coarse step based second order symmetrized split-step Fourier (SSSF) simulation method, which is applicable to the numerical solution of the CNLS equations, an analytical step-size selection based local error method is applied to the WDM optical fiber communication systems. With systematical simulation study of both standard single mode fiber (SSMF) fiber links and true-wave reduced slope (TWRS) fiber links. It is found that similar to the single channel systems, the global simulation accuracy for the vector propagation can be satisfied using the local error bound (LEB) obtained from a scalar propagation model for the same global error over a large range of simulation accuracy and differential group delay (DGD). Furthermore, carefully designed numerical simulations are used to show that the proposed local error method leads to higher computational efficiency compared to other prevalent step-size selection schemes in vector WDM simulations. The scaling of the global simulation error with respect to the number of optical fiber spans is demonstrated, and global error control for multi-span WDM simulations is proposed.
Book Synopsis Conference on Optical Fiber Communications by : Conference on Optical Fiber Communications (20, 1997, Dallas, Tex.)
Download or read book Conference on Optical Fiber Communications written by Conference on Optical Fiber Communications (20, 1997, Dallas, Tex.) and published by . This book was released on 1997 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhancement of the Optical Transmission System Utilizing a Dual-function Remotely Pumped Erbium-doped Fiber Amplifier by : Ahmed Wathik Naji Al-Kaissi
Download or read book Enhancement of the Optical Transmission System Utilizing a Dual-function Remotely Pumped Erbium-doped Fiber Amplifier written by Ahmed Wathik Naji Al-Kaissi and published by . This book was released on 2006 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical fiber communication system is an active research area for its high demand especially in the long-haul communication system. A lot of work has been done to improve the optical transmission system (OTS) as a long-haul system using remotely-pumped Erbium-Doped Fiber Amplifier (R-EDFA) and Distributed Raman Amplication (DRA). Despite these achievements, there is still room for enhancements and developments to solve the existing system's problems. This work presents a thorough research on OTS using hybrid R-EDFA and DRA approach. The research work includes gain enhancing technique under low pump powerm enhanced dispersion compensating technique, new R-EDFA location-optimization technique, and a figure of merit is introduced to determine the optimal setting of R-EDFA with respect to its practical applications (Post- and Pre-amplifier). Various designs for low pump R-EDFA configuration, in which a Chirped Fiber Bragg Grating (CFBG) is placed inside the R-EDFA configuration, is demonstrated in this research work. This configuration offers two functions at the same time, where it can achieve both double-pass amplification technique as well as dispersion compensating technique. A comparative analysis is conducted to compare the performance of the newly developed configuration with the conventional R-EDFA configurations, this configuration is found to give better performance compared to the conventional amplifier configurations, where a gain of 23 dB is achieved for input signal power of less than -35 dB at only 10 mW pump power. Since the location of R-EDFA has a high impact on the total transmission distance, a new technique is proposed to find the optimum location of R-EDFA, where a location close to the receiver is found to give a longer distance. In this research workm many configurations of OTS are developed and presented. A maximum transmission distance of 293 km is achieved using an optimized OTS which utilizes dual-function R-EDFA at 2.5 Gbps. A bit error rate (BER) ise used as the main performance parameter with a threshold value of better than 10-10. In addition to that, a mathematical modeling for this optimized configuration is carried out in this research work, which deals with the post- and pre-length of the system as well as the R-EDFA and DRA. Finally, in order to evaluate further the performance of the optimized configurations with respect to the previous systems, a new performance parameter called Pump Power Consumpstion (PPC) is introduced. This optimized OTS configuration has a better PPC (0.682 mW/km) compared to the previous OTS.
