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All Optical Multiwavelength Fiber Lasers Based On Stimulated Brillouin Scattering
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Book Synopsis All-optical Multiwavelength Fiber Lasers Based on Stimulated Brillouin Scattering by : Zubaidah Abd. Rahman
Download or read book All-optical Multiwavelength Fiber Lasers Based on Stimulated Brillouin Scattering written by Zubaidah Abd. Rahman and published by . This book was released on 2011 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis All-optical Generation of Multiwavelength Brillouin-erbium Fiber Laser in Long-wavelength Band by : Mohammed Hayder Al-Mansoori
Download or read book All-optical Generation of Multiwavelength Brillouin-erbium Fiber Laser in Long-wavelength Band written by Mohammed Hayder Al-Mansoori and published by . This book was released on 2008 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, the design and development of the multiwavelength Brillouin-Erbium fiber laser (BEFL) sources operating in the L-band transmission window is presented and characterized. Four different laser designs have been successfully demonstrated using a combination of stimulated Brillouin scattering effect in optical fiber and Erbium-doped fiber (EDF) amplification. The experimental results obtained from the characterization and optimization of these laser structures are the threshold power, number of the Stokes signals generated, Stokes signals power, self-lasing oscillation and the tuning range. The results are taken from the studies which have been carried out to analyze the effects of 1480 nm pump power, Brillouin pump (BP) power, BP wavelength and single mode fiber (SMF) length. The first laser structure is an efficient multiwavelength L-band BEFL pumped by a 1480 nm pump laser in a linear cavity configuration with direct BP injection into SMF. The issue of low gain efficiency of the L-band in the EDF lasers is resolved with the efficient linear cavity structure and the 1480 nm pumping scheme. The proposed laser structure exhibits a low threshold power of 18 mW and a maximum number of 26 stable output channels with 0.089 nm (10.5 GHz) channels spacing. The second and third laser structures are focused on the enhanced multiwavelength BEFL, in which the BP power is pre-amplified before entering the SMF within the laser cavity. The BP pre-amplification techniques - single pass and double pass represent a new mode of operation of multiwavelength BEFL's. This intra-cavity BP pre-amplification provided by the EDF has created higher intensity of Brillouin Stokes signals generated in the single-mode fiber that leads to the homogenous gain saturation. This effect is able to suppress the built-up of the self-lasing cavity modes in a wider wavelength range and the number of output channels is also enhanced as compared to the conventional BP direct injection. Output of more than 33 laser channels is achieved and the tuning range is almost doubled than that of the conventional BP direct injection technique. Finally, for the fourth laser configuration, the multiwavelength BEFL incorporates either the amplified fiber loop mirror (AFLM) or non-linear amplified fiber loop mirror filter (AFLMF). Fifty-four stable output channels, with 0.089 nm channels spacing, have been achieved. A non-linear AFLMF which induces wavelength-dependent cavity loss and serves as an amplitude equalizer is employed to shift and flatten the EDF gain spectrum. Two control mechanisms have been demonstrated to shift and flatten the EDF gain profile through the adjustment of the polarization controller in the AFLMF. Therefore, the multiwavelength BEFL could be tuned over the whole L-band window from 1570 nm to 1610 nm with the average number of 24 output channels. In addition, flattening the EDF laser oscillation overcomes the requirements of the BP wavelength tuning, in conjunction with the adjustment of the polarization controllers in the fiber loop.
Book Synopsis Generation and Performance of Multiwavelength Fiber Lasers Based on Stimulated Brillouin Scattering (sbs) by : Wahib Hamood Ali Mohsen
Download or read book Generation and Performance of Multiwavelength Fiber Lasers Based on Stimulated Brillouin Scattering (sbs) written by Wahib Hamood Ali Mohsen and published by . This book was released on 2012 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiwavelength Brillouin Semiconductor Fiber Lasers by : Alaa Hayder
Download or read book Multiwavelength Brillouin Semiconductor Fiber Lasers written by Alaa Hayder and published by . This book was released on 2008 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiber Laser written by Mukul Paul and published by BoD – Books on Demand. This book was released on 2016-03-02 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a self-contained collection of scholarly papers targeting an audience of practicing researchers, academics, PhD students, and other scientists. This book describes the rapidly developing field of fiber laser technology filling the very important role of providing students, researchers, and technology managers with valuable, timely, and unbiased information on the subject. The objective of this book is to highlight recent progress and trends in fiber laser technology covering a wide range of topics, such as self-pulsing phenomena in high-power continuous wave (CW) Yb-doped fiber lasers, Q-switched fiber laser, mode-locked fiber laser using carbon nanotubes (CNT), properties of double-scale pulses in mode-locked fiber laser, Brillouin fiber laser, dual-wave length fiber laser (DWFL) for microwave (MHz) and terahertz (THz) radiation generation, tunable fiber laser based on twin core optical fiber, reflective semiconductor optical amplifier (RSOA)-based fiber laser, dissipative soliton phenomena in fiber lasers, noiselike pulses (NLPs) in Yb-doped fiber laser, ultra fast fiber laser, numerical simulation in Q-switched and mode-locked fiber laser, gain saturation in optical fiber laser amplifiers, heat generation and removal in fiber lasers, and different fiber laser based technologies for material processing. We hope that this book will be useful for students, researchers, and professionals, who work with fiber lasers. This book will also serve as an interesting and valuable reference that will impact, stimulate, and promote further advances in the area of fiber lasers
Download or read book Fiber Lasers written by Liang Dong and published by CRC Press. This book was released on 2016-09-19 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fiber laser, with its humble beginning in the late 1980s, has undergone tremendous development in the past decade or so, transforming itself from a research curiosity to a major force in modern manufacturing. Today, it is revolutionizing our economy by fundamentally changing the way we mark, machine, and process materials on an industrial scale. The recent development of high-power fiber lasers is also fundamentally shaping a wide range of other areas from physical sciences and medicine to geology and space exploration. In the past few years, the tactical deployment of direct energy weapons based on fiber lasers has become a reality. The development of fiber lasers is rooted in a number of technical areas including optical materials, optical waveguide design, nonlinear optics, optical fiber fabrication, and optical characterization, in addition to optical fiber components, and fiber laser design and architecture. No comprehensive in-depth coverage of such diverse topical areas has appeared in a single book. Many important developments have taken place in the past decade in both academia and industry. This book comprehensively covers the basics, technology and applications of fiber lasers including up-to-date developments in both academia and industry and is aimed to serve as both an introduction and research aid for graduate students, engineers, and scientists who are new to this field and also for veterans in the field
Download or read book Pulsed Fiber Lasers written by Peter Adel and published by Cuvillier Verlag. This book was released on 2004 with total page 170 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 Brillouin Thulium Doped Fiber Laser at 1.9 Um and Bismuth Doped Fiber Laser at 1.7 Um by : Jinghao Qiao
Download or read book Brillouin Thulium Doped Fiber Laser at 1.9 Um and Bismuth Doped Fiber Laser at 1.7 Um written by Jinghao Qiao and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The high and rapidly increasing demand for more telecommunication capacity and internet services drives the evolution of fiber optic communication. The third telecom window, which utilizes wavelengths around 1.5 [mu]m and is widely utilized nowadays, can not meet this demand in future. Researchers are trying to develop technologies in new wavelength regions. Longer wavelength region has attracted intense interests for its prospective application. On the other hand, the fact that the wavelength region from 1.7 [mu]m to 2 [mu]m covers the absorption bands of water and greenhouse gas facilitates the applications in such area as sensing, spectroscopy and coherent LIDAR. In this thesis, we demonstrate a multi-wavelength thulium doped fiber laser around 1.9 [mu]m and a bismuth doped fiber laser around 1.7 [mu]m.The 1.9 [mu]m multi-wavelength laser uses a combination of a 25 cm Tm^(3+)-doped silica fiber along with stimulated Brillouin scattering and four wave mixing. More than 100 lines can be observed in the optical spectrum. It is, to the best of our knowledge, the largest number of lasing wavelengths emitting from a Brillouin thulium fiber laser. The peak wavelengths drift less than 0.02 nm and peak powers fluctuate less than 3.4 dB in 20 minutes.The 1.7 [mu]m CW laser uses a 15 m bismuth doped germanosilicate fiber as active fiber. Both linear cavity and ring cavity are tried to build laser. With linear cavity, a laser at 1726 nm has been achieved. The laser has maximum output power of 55 [mu]W with slope efficiency of 5.76*10^(-5) W/W. With ring cavity, the laser has maximum output power of 300 [mu]W with slope efficiency of 3.55*10^(-4) W/W. The laser has single-wavelength operation at 1735 nm or dual-wavelength operation at 1726 nm and 1735 nm." --
Book Synopsis Current Developments in Optical Fiber Technology by : Sulaiman Wadi Harun
Download or read book Current Developments in Optical Fiber Technology written by Sulaiman Wadi Harun and published by BoD – Books on Demand. This book was released on 2013-06-13 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of works presenting recent advances and progress in optical fiber technology related to the next generation optical communication, system and network, sensor, laser, measurement, characterization and devices. It contains five sections including optical fiber communication systems and networks, plastic optical fibers technologies, fiber optic sensors, fiber lasers and fiber measurement techniques and fiber optic devices on silicon chip. Each chapter in this book is a contribution from a group of academicians and scientists from a prominent university or research center, involved in cutting edge research in the field of photonics. This compendium is an invaluable reference for researchers and practitioners working in academic institutions as well as industries.
Book Synopsis Study of Mode Locked Fiber Lasers and All-optical Logic by : Hao Dong
Download or read book Study of Mode Locked Fiber Lasers and All-optical Logic written by Hao Dong and published by . This book was released on 2006 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Intensity Scaling Through Stimulated Scattering in Optical Fibers by : Timothy H. Russell
Download or read book Laser Intensity Scaling Through Stimulated Scattering in Optical Fibers written by Timothy H. Russell and published by . This book was released on 2001-12-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of stimulated scattering on laser intensity in fiber optic waveguides is examined. Stimulated Brillouin scattering (SBS) in long, multimode optical waveguides is found to generate a Stokes beam that propagates in the fiber LP01 mode. Additionally, the same process is found to combine multiple laser beams into a single spatially coherent source. Limitations in beam cleanup and combining are also investigated to identify ways to overcome them. The last portion of the dissertation theoretically examines suppression of stimulated Raman scattering in fibers to eliminate the restriction this imposes on the power of a fiber laser or amplifier. The suppression was modeled using both a holmium dopant and adding a long period grating to the fiber. Both methods were shown to have a significant effect on the SRS threshold.
Book Synopsis Fundamentals of Fiber Lasers and Fiber Amplifiers by : Vartan V. Ter-Mikirtychev
Download or read book Fundamentals of Fiber Lasers and Fiber Amplifiers written by Vartan V. Ter-Mikirtychev and published by Springer Nature. This book was released on 2019-12-30 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamental aspects of fiber lasers and fiber amplifiers, and includes a wide range of material from laser physics fundamentals to state-of-the-art topics in this rapidly growing field of quantum electronics. This expanded and updated new edition includes substantial new material on nonlinear frequency conversion and Raman fiber lasers and amplifiers, as well as an expanded list of references inclusive of the recent literature in the field. Emphasis is placed on the nonlinear processes taking place in fiber lasers and amplifiers, their similarities, differences to, and their advantages over other solid-state lasers. The reader will learn the basic principles of solid-state physics and optical spectroscopy of laser active centers in fibers, the main operational laser regimes, and will receive practical recommendations and suggestions on fiber laser research, laser applications, and laser product development. The book will be useful for students, researchers, and professional physicists and engineers who work with lasers in the optical and telecommunications field, as well as those in the chemical and biological industries.
Download or read book Raman Fiber Lasers written by Yan Feng and published by Springer. This book was released on 2017-10-05 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a comprehensive, up-to-date reference about this cutting-edge laser technology and its many new and interesting developments. Various aspects and trends of Raman fiber lasers are described in detail by experts in their fields. Raman fiber lasers have progressed quickly in the past decade, and have emerged as a versatile laser technology for generating high power light sources covering a spectral range from visible to mid-infrared. The technology is already being applied in the fields of telecommunication, astronomy, cold atom physics, laser spectroscopy, environmental sensing, and laser medicine. This book covers various topics relating to Raman fiber laser research, including power scaling, cladding and diode pumping, cascade Raman shifting, single frequency operation and power amplification, mid-infrared laser generation, specialty optical fibers, and random distributed feedback Raman fiber lasers. The book will appeal to scientists, students, and technicians seeking to understand the recent developments and future trends of this promising and multifaceted technology.
Book Synopsis Fiber Amplifiers and Fiber Lasers by : Niloy K. Dutta
Download or read book Fiber Amplifiers and Fiber Lasers written by Niloy K. Dutta and published by World Scientific Publishing Company. This book was released on 2014-11-17 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable book provides a comprehensive treatment of design and applications of rare-earth-doped fiber amplifiers and fiber lasers. Optical fiber amplifier is an important component for optical communication systems. It has applications as pre-amplifiers, post-amplifiers, and repeater amplifiers in evolving optical networks. Optical fiber amplifiers and fiber lasers are also important for high power industrial applications and sensors. The applications of fiber amplifiers were first studied in the late 1980's, since then the diversity and scope of such applications have been steadily growing. Fiber Amplifiers and Fiber Lasers is self-contained and unified in presentation. It can be used as an advanced text by graduate students and by practicing engineers. It is also suitable for non-experts who wish to have an overview of fiber amplifiers and fiber lasers. The treatments in the book are detailed enough to capture the interest of curious readers and are complete enough to provide the necessary background to explore the subject further.
Book Synopsis Optical Signal Processing in Highly Nonlinear Fibers by : Mário Fernando Santos Ferreira
Download or read book Optical Signal Processing in Highly Nonlinear Fibers written by Mário Fernando Santos Ferreira and published by CRC Press. This book was released on 2020-05-18 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an updated description of the most relevant types of highly nonlinear fibers. It also describes some of their actual applications for nonlinear optical signal processing. Multiple types of highly nonlinear fibers are considered, such as silica-based conventional highly nonlinear fibers, tapered fibers, photonic crystal fibers, and fibers made of highly nonlinear materials, namely lead-silicate, tellurite, bismuth oxide, and chalcogenide glasses. Several nonlinear phenomena occurring on such highly nonlinear fibers are described and used to realize different functions in the area of all-optical signal processing. Describes several nonlinear phenomena occurring on optical fibers, namely nonlinear phase modulation, parametric and stimulated scattering processes, optical solitons, and supercontinuum generation. Discusses different types of highly nonlinear fibers, namely silica-based conventional highly nonlinear fibers, tapered fibers, and photonic crystal fibers. Examines fibers made of highly nonlinear materials, namely lead-silicate, tellurite, bismuth oxide, and chalcogenide glasses. Describes the application of several nonlinear phenomena occurring on highly nonlinear fibers to realize different functions in the area of all-optical signal processing, namely optical amplification, multiwavelength sources, pulse generation, optical regeneration, wavelength conversion, and optical switching. Mário F. S. Ferreira received his PhD degree in 1992 in physics from the University of Aveiro, Portugal, where he is now a professor in the Physics Department. Between 1990 and 1991, he was at the University of Essex, UK, performing experimental work on external cavity semiconductor lasers and nonlinear optical fiber amplifiers. His research interests have been concerned with the modeling and characterization of multisection semiconductor lasers, quantum well lasers, optical fiber amplifiers and lasers, soliton propagation, nanophotonics, optical sensors, polarization, and nonlinear effects in optical fibers. He has written more than 400 scientific journal and conference publications and several books in the area of mathematical physics, optics, and photonics. He has served as chair and committee member of multiple international conferences, as well as guest editor and advisory board member of several international journals.
Book Synopsis Ultra-Fast Fiber Lasers by : Le Nguyen Binh
Download or read book Ultra-Fast Fiber Lasers written by Le Nguyen Binh and published by CRC Press. This book was released on 2018-09-03 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrashort pulses in mode-locked lasers are receiving focused attention from researchers looking to apply them in a variety of fields, from optical clock technology to measurements of the fundamental constants of nature and ultrahigh-speed optical communications. Ultrashort pulses are especially important for the next generation of ultrahigh-speed optical systems and networks operating at 100 Gbps per carrier. Ultra Fast Fiber Lasers: Principles and Applications with MATLAB® Models is a self-contained reference for engineers and others in the fields of applied photonics and optical communications. Covering both fundamentals and advanced research, this book includes both theoretical and experimental results. MATLAB files are included to provide a basic grounding in the simulation of the generation of short pulses and the propagation or circulation around nonlinear fiber rings. With its unique and extensive content, this volume— Covers fundamental principles involved in the generation of ultrashort pulses employing fiber ring lasers, particularly those that incorporate active optical modulators of amplitude or phase types Presents experimental techniques for the generation, detection, and characterization of ultrashort pulse sequences derived from several current schemes Describes the multiplication of ultrashort pulse sequences using the Talbot diffraction effects in the time domain via the use of highly dispersive media Discusses developments of multiple short pulses in the form of solitons binding together by phase states Elucidates the generation of short pulse sequences and multiple wavelength channels from a single fiber laser The most practical short pulse sources are always found in the form of guided wave photonic structures. This minimizes problems with alignment and eases coupling into fiber transmission systems. In meeting these requirements, fiber ring lasers operating in active mode serve well as suitable ultrashort pulse sources. It is only a matter of time before scientists building on this research develop the practical and easy-to-use applications that will make ultrahigh-speed optical systems universally available.
