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Development Of An Enhanced Wide Band Erbium Doped Fiber Amplifier Using High Concentration Active Medium
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Book Synopsis Development of an Enhanced Wide-band Erbium Doped Fiber Amplifier Using High Concentration Active Medium by : Belal Ahmed G. Allah Hamida
Download or read book Development of an Enhanced Wide-band Erbium Doped Fiber Amplifier Using High Concentration Active Medium written by Belal Ahmed G. Allah Hamida and published by . This book was released on 2013 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the point-to-point transmission an optical signal suffers mainly from attenuation and dispersion. The ongoing research has been focusing on containing this issue by proposing innovative designs in order to provide for an element compensating these effects. This research work focuses on the development of a new design of wide band high concentration optical amplifier. It suggests compensating for attenuation and dispersion both using the same technique. It consists of two stages of 1.5m and 9m long Erbium-Doped Fiber (EDF) optimized to operate in C-band and L-band, respectively. Further, a Chirped Fiber Bragg grating (CFBG) is used in each section to reflect the amplified signal back to the active area so that the overall gain spectrum can be enhanced over a wider frequency spectrum. Using a semi-analytical model (GainMaster), is suggested to verify the proposed design. A numerical model is carried out to implement the energy rate equations for the erbium ions population inversions. In addition, an extensive work has been carried out to implement this design experimentally. The experimental results show that the proposed amplifier gives a wider (1540nm to 1610m) flat high gain (22dB) with variation of ±3dB and low noise figure less than (6.5dB) at low input signal power (-30dBm) . Though solved by CFBG partially, this work has not carried out a quantified exploration of issues related to dispersion, mainly due to unavailability properly characterized equipment. Also an extensive work has been carried out to evaluate the performance of the proposed amplifier by comparing the performance against other available amplifiers. The performance shows that the band width 5nm higher than the existing amplifier with low noise figure about 7dB and gain flatness about 70nm which is higher than the other two amplifiers by 30dm.
Book Synopsis Erbium-Doped Fiber Amplifiers by : Philippe M. Becker
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
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 2002-08-08 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for Emmanuel Desurvire's Erbium-Doped Fiber Amplifiers: Principles and Applications "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 Erbium-doped fiber amplifiers are an important technology for lightwave voice, video, and data transmission. In his previous book, Erbium-Doped Fiber Amplifiers: Principles and Applications, Emmanuel Desurvire 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 EDFA 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.
Book Synopsis Bismuth-Based Erbium-Doped Fibre Optical Amplifiers by : Nizam Tamchek
Download or read book Bismuth-Based Erbium-Doped Fibre Optical Amplifiers written by Nizam Tamchek and published by LAP Lambert Academic Publishing. This book was released on 2012-02 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-haul optical telecommunication system nowadays depend solely with high power silica-based optical amplifier doped with Erbium as an active materials. Development of novel glass host for optical amplifier can renew and enhance the capacity and distance further to be more cost effective. This book focus on characterization and analysis of bismuth-based optical amplifier as a wide band optical amplifier for optical telecommunication. Bismuth host have shown significant improvement in term of optical gain, noise figure, length of optical fiber, compactness and more importantly the device cost. Author do believe with further study, bismuth-based optical amplifier capable to replace currently deployed silica-based optical amplifier due to its outstanding performances.
Book Synopsis High-gain Short-length Phosphate Glass Erbium/ytterbium Co-doped Fiber Amplifier Working in the L-band Range by : Ayman Mohammad Samara
Download or read book High-gain Short-length Phosphate Glass Erbium/ytterbium Co-doped Fiber Amplifier Working in the L-band Range written by Ayman Mohammad Samara and published by . This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: EDFA (Erbium Doped Fiber Amplifier) is a mature technology and is the workhorse for all optical networks, yet its relatively large size and small band width (mainly in the C-band regime) requires further research and development efforts to achieve the ever-wanted small, compact, wide bandwidth, and efficient fiber amplifiers. In this thesis we conducted various experimental setup / configurations on a new high-gain phosphate glass Er-Yb doped fiber amplifiers. We investigated the gain characteristics of different lengths of active-fiber used in these amplifiers. Using a tunable laser, we studied the performance at different signal wavelengths and strengths (in the 1550 nm band), and influence of various pump parameters. Our results show a maximum 19 dB gain can be achieved using a 25-cm length of this active fiber, with pump power - 180 mW at 980 nm wavelength. This maximum gain is around the 1570 nm, which is in the L-band regime. The amplification bandwidth covers both C-band and L-band regimes. These results prove that a short length of this new fiber amplifier gives high gain levels that are comparable to those given by the current fiber amplifiers, and it covers a wider range of the optical communication spectra. This fiber amplifier has the potential for future mass production of very compact and efficient devices.
Book Synopsis Design and Development of High Sensitivity Erbium Doped Fiber Amplifier (hs-edfa) by : Rosdisham Endut
Download or read book Design and Development of High Sensitivity Erbium Doped Fiber Amplifier (hs-edfa) written by Rosdisham Endut and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Various aspects concerning Erbium Doped Fiber Amplifiers (EDFA) for use in C-band transmission system were investigated through experimental work culminating in the design and implementation of three different C-band EDF A's. The most promising being an EDF A utilizing double pass with tunable bandpass filter (TBF) amplification scheh,e. The configuration is a new approach to increase the sensitivity of the preamplifier before the signal is received by the receiver. This is because, limited sensitivity preamplifiers offered in the markets that limit the fiber optic link design. Thus, a new approach is desirable in solving the problem. In this thesis, new technique is proposed to increase the sensitivity up to IOdB. STM-I and STM-4 Bit Error Rate (BER) test on SDH network was successfully conducted in a laboratory environment. The test showed that no error was introduced. Finally it is concluded that DPEDFA is reliable to be used as a device to realize high sensitivity preamplifier, as its realization would result in a huge increase in additional power budget with minimum installation and maintenance complexity and cost.
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 Design and Development of In-line Optical Amplifiers by : Sharifah Noriza Syed Ibrahim
Download or read book Design and Development of In-line Optical Amplifiers written by Sharifah Noriza Syed Ibrahim and published by . This book was released on 2004 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber optica technology is not entirely perfect, even with its amazing capabilities. As the transmissions cover larger distances, signal lost occurs and amplication is required. Hence, to transmit information over longer distances, the optical signals need to be boosted. The conventional method of boosting these signals is by using the electrical repeaters. The concept of electrical repeaters may sound attractive, but it poses several problems. This is because repeaters can only work at specific rate, wavelength and modulation format. The need for optical amplifiers has arisen because the repeaters concept delays the transmission and may introduce noise in the signal. Optical signals require amplification at different points on communications links. There are three types of amplifiers located along this link. The first type is the power amplifiers that are placed directly after the optical transmitter. Secondly, there are the in-line amplifiers that operate with a signal in the middle of a fiber-optic link and lastly, the pre amplifiers, which magnify the signal before it reaches the receiver. In this research, the design and development of optical amplifiers focused only on in-line amplifiers. Among the variety of optical amplifiers, Erbium doped fiber amplifiers were chosen as the optical amplifiers becuase erbium is the most efficient active medium that allows optical signals to be transmitted over very long distances without the need for signal regeneration. In this thesis, the hands-on experiments of the in-line optical amplifiers design were carried out. The design models comprised single and double stages of Erbium doped fiber amplifiers setups. At the single stage device level, testing was conducted to study the effects of the design parameters that are pump power, Erbium doped fiber length, signal wavelength and input power. The analysis on the double stage Erbium doped fiber amplifier was carried out for the device level testing based on the effects of the performance parameters i.e., gain, output power, noise figure and Amplified Spontaneos Emission level with the inclusion of tunable band pass filter. The results showed that the double stage amplifiers had a greater advantage compared to the single stage. the double stage Erbium doped fiber amplifiers with tunable band pass filter and the utilization of the backward pumping scheme had increased the gain more than that with the forward pumping scheme. The noise problem created in the Erbium doped fiber amplifiers was the main source that contributed to the high Amplified Spontaneous Emission. The concatenated chain caused the Amplified Spontaneous Emission to accumulate. Hence, inserting a tunable band pass filter in the design reduced the noise figure. Varying the parameters and selecting the suitable setup can improve the performance of the in-line amplifier system. The results of the study showed the most suitable design setup is the double stage Erbium doped fiber amplifiers, which increases the gain but reduce the noise level.
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
Download or read book Bismuth written by Yanhua Luo and published by BoD – Books on Demand. This book was released on 2020-12-02 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bismuth—a wonder metal with unique features—plays an important role in the bismuth-related optoelectronic materials. The innovative development of bismuth optoelectronic materials will undoubtedly drive the social development and economic growth in the world towards a glorious future.
Book Synopsis Designs of Enhanced L-band Erbium-doped Fiber Amplifiers by : Sulaiman Wadi Harun
Download or read book Designs of Enhanced L-band Erbium-doped Fiber Amplifiers written by Sulaiman Wadi Harun and published by . This book was released on 2004 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Single-Frequency Fiber Lasers by : Zhongmin Yang
Download or read book Single-Frequency Fiber Lasers written by Zhongmin Yang and published by Springer. This book was released on 2019-02-19 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a contemporary overview of the technologies of single-frequency fiber lasers. The development of single-frequency fiber lasers is one of the most significant achievements in the field of laser photonics over the past two decades. Owing to the crucial demands of a laser sources with highly stable single-frequency operation, narrow linewidth, low noise, scalable to high output power, compact and robustness structure, fiber lasers have been intensively studied since its introduction to the single-frequency laser community and they still continuously proceed to trigger the emergence of new technologies and applications. This book systematically demonstrates the single-frequency fiber laser technologies from fundamental principles to state-of-the-art progress. Details of selected typical applications of single-frequency fiber lasers are also given and discussed. The reader will acquire a good knowledge of the current situation within this important field.
Book Synopsis Rare-Earth-Doped Fiber Lasers and Amplifiers, Revised and Expanded by : Michel J.F. Digonnet
Download or read book Rare-Earth-Doped Fiber Lasers and Amplifiers, Revised and Expanded written by Michel J.F. Digonnet and published by CRC Press. This book was released on 2001-05-31 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of the theories, operating characteristics, and current technology of main fiber laser and amplifier devices based on rare-earth-doped silica and fluorozirconate fibers. It describes the principles, designs, and properties of the erbium-doped fiber amplifier and its role as the cornerstone component in optical communication systems. This second edition contains new and revised material reflecting major developments in academia and 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 Frontiers in Guided Wave Optics and Optoelectronics by : Bishnu Pal
Download or read book Frontiers in Guided Wave Optics and Optoelectronics written by Bishnu Pal and published by BoD – Books on Demand. This book was released on 2010-02-01 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the editor, I feel extremely happy to present to the readers such a rich collection of chapters authored/co-authored by a large number of experts from around the world covering the broad field of guided wave optics and optoelectronics. Most of the chapters are state-of-the-art on respective topics or areas that are emerging. Several authors narrated technological challenges in a lucid manner, which was possible because of individual expertise of the authors in their own subject specialties. I have no doubt that this book will be useful to graduate students, teachers, researchers, and practicing engineers and technologists and that they would love to have it on their book shelves for ready reference at any time.
Book Synopsis Guided Wave Optical Components and Devices by : Bishnu P. Pal
Download or read book Guided Wave Optical Components and Devices written by Bishnu P. Pal and published by Academic Press. This book was released on 2010-07-19 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guided Wave Optical Components and Devices provides a comprehensive, lucid, and clear introduction to the world of guided wave optical components and devices. Bishnu Pal has collaborated with some of the greatest minds in optics to create a truly inclusive treatise on this contemporary topic. Written by leaders in the field, this book delivers cutting-edge research and essential information for professionals, researchers, and students on emerging topics like microstructured fibers, broadband fibers, polymer fiber components and waveguides, acousto-optic interactions in fibers, higher order mode fibers, nonlinear and parametric process in fibers, revolutionary effects of erbium doped and Raman fiber amplifiers in DWDM and CATV networks, all-fiber network branching component technology platforms like fused fiber couplers, fiber gratings, and side-polished fiber half-couplers, arrayed waveguides, optical MEMS, fiber sensing technologies including safety, civil structural health monitoring, and gyroscope applications. Accessible introduction to wide range of topics relating to established and emerging optical components Single-source reference for graduate students in optical engineering and newcomer practitioners, focused on components Extensive bibliographical information included so readers can get a broad introduction to a variety of optical components and their applications in an optical network
Book Synopsis Undersea Fiber Communication Systems by : José Chesnoy
Download or read book Undersea Fiber Communication Systems written by José Chesnoy and published by Elsevier. This book was released on 2002-10-21 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: DescriptionThis book provides a detailed overview of the evolution of undersea communications systems, with emphasis on the most recent breakthroughs of optical submarine cable technologies based upon Wavelength Division Multiplexing, optical amplification, new-generation optical fibers, and high-speed digital electronics. The role played by submarine-communication systems in the development of high-speed networks and associated market demands for multiplying Internet and broadband services is also covered.Importance of This TopicThis book will fill the gap between highly specialized papers from large international conferences and broad-audience technology review updates. The book provides a full overview of the evolution in the field and conveys the dimension of the large undersea projects. In addition, the book uncovers the myths surrounding marine operations and installations in that domain, which have remained known so far to only very few specialists.
