Download or read book Ultrafast Fiber Lasers Enabled by Highly Nonlinear Pulse Evolutions written by Walter Fu and published by . This book was released on 2019 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrafast lasers have had tremendous impact on both science and applications, far beyond what their inventors could have imagined. Commercially-available solid-state lasers can readily generate coherent pulses lasting only a few tens of femtoseconds. The availability of such short pulses, and the huge peak intensities they enable, has allowed scientists and engineers to probe and manipulate materials to an unprecedented degree. Nevertheless, the scope of these advances has been curtailed by the complexity, size, and unreliability of such devices. For all the progress that laser science has made, most ultrafast lasers remain bulky, solid-state systems prone to misalignments during heavy use. The advent of fiber lasers with capabilities approaching that of traditional, solid-state lasers offers one means of solving these problems. Fiber systems can be fully integrated to be alignment-free, while their waveguide structure ensures nearly perfect beam quality. However, these advantages come at a cost: the tight confinement and long interaction lengths make both linear and nonlinear effects significant in shaping pulses. Much research over the past few decades has been devoted to harnessing and managing these effects in the pursuit of fiber lasers with higher powers, stronger intensities, and shorter pulse durations. This thesis focuses on less quantitative metrics of fiber laser performance, with an emphasis on furthering the versatility and practicality of ultrafast sources. Much of this work relies on the calculated use of strong fiber nonlinearities, turning conventionally-undesirable phenomena into crucial tools for enabling new capabilities. First, the generation of femtosecond-scale pulses from much slower, more robust sources is investigated, conferring not only reliability advantages but also a fundamentally greater scope for repetition rate tuning. Next, prospects for fiber lasers operating at wavelengths far from any gain media are explored. By leveraging optical parametric gain alongside chirped-pulse evolutions, energy and bandwidth generated at one wavelength can be efficiently converted to another, while keeping the pulse's phase and compressibility intact. Both the scaling properties and the underlying theoretical considerations of this approach are discussed. Prospects for realizing optical parametric sources in birefringent step-index fibers are then studied. By using the polarization modes in a telecom-grade fiber to obtain phase-matching, new wavelengths can be generated while eschewing photonic crystal fiber and its inherent practical disadvantages. Finally, more speculative ideas for future work along these themes are discussed.
Download or read book Ultra Fast Fiber Lasers written by Le Nguyen Binh and published by CRC Press. This book was released on 2010-07-19 with total page 441 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.
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:
Download or read book Mode Locked Lasers Introduction to Ultrafast Semiconductor and Fiber Lasers written by Niloy K Dutta and published by World Scientific Publishing Company. This book was released on 2024-06-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable book provides a comprehensive treatment of the design and application of Mode Locked Lasers and Short Pulse Generation. With the advances in semiconductor laser and fiber laser technologies in the 1980s to now, these devices have been made compact, refined, and developed for a wide range of applications including further scientific studies.Semiconductor mode-locked lasers are stable pulse sources and can be made over a range of wavelengths where laser operation is feasible. Rare earth doped fiber lasers or planar waveguides extend this range further and can provide compact pulsed sources. The principles of operation, analysis, design and fabrication of these sources are described. Recent results on high repetition rate and high-power pulse generation from these compacts sources are also described, together with current and future directions of application of these types of laser sources.Mode-Locked Lasers: Introduction to Ultrafast Semiconductor 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 mode-locked lasers and pulse generation. The explanations in the book are detailed enough to capture the interest of the curious reader and complete enough to provide the necessary background to explore the subject further.
Download or read book Ultrashort Pulse Lasers and Ultrafast Phenomena written by Takayoshi Kobayashi and published by CRC Press. This book was released on 2023-03-21 with total page 1255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the basic physical principles of techniques to generate and ultrashort pulse lasers and applications to ultrafast spectroscopy of various materials covering chemical molecular compounds, solid-state materials, exotic novel materials including topological materials, biological molecules and bio- and synthetic polymers. It introduces non-linear optics which provides the basics of generation and measurement of pulses and application examples of ultrafast spectroscopy to solid state physics. Also it provide not only material properties but also material processing procedures. The book describes also details of the world shortest visible laser and DUV lasers developed by the author’s group. It is composed of the following 12 Sections: The special features of this book is that it is written by a single author with a few collaborators in a systematic way. Hence it provides a comprehensive and systematic description of the research field of ultrashort pulse lasers and ultrafast spectroscopy. Generation of ultrashort pulses in deep ultraviolet to near infrared Generation of ultrashort pulses in terahertz Carrier envelope phase (CEP) Simple NLO processes with a few colors Multi-color involved NLO processes Multi-color ultrashort pulse generation NLO materials NLO processes in time-resolved spectroscopy Low dimension materials Conductors and superconductors Chemical reactions and material processing Photobiological reactions
Download or read book Opportunities in Intense Ultrafast Lasers written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-03-03 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laser has revolutionized many areas of science and society, providing bright and versatile light sources that transform the ways we investigate science and enables trillions of dollars of commerce. Now a second laser revolution is underway with pulsed petawatt-class lasers (1 petawatt: 1 million billion watts) that deliver nearly 100 times the total world's power concentrated into a pulse that lasts less than one-trillionth of a second. Such light sources create unique, extreme laboratory conditions that can accelerate and collide intense beams of elementary particles, drive nuclear reactions, heat matter to conditions found in stars, or even create matter out of the empty vacuum. These powerful lasers came largely from U.S. engineering, and the science and technology opportunities they enable were discussed in several previous National Academies' reports. Based on these advances, the principal research funding agencies in Europe and Asia began in the last decade to invest heavily in new facilities that will employ these high-intensity lasers for fundamental and applied science. No similar programs exist in the United States. Opportunities in Intense Ultrafast Lasers assesses the opportunities and recommends a path forward for possible U.S. investments in this area of science.
Download or read book Pulse Shaping Mechanisms for High Performance Mode locked Fiber Lasers written by William Henry Renninger and published by . This book was released on 2012 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber lasers offer several clear advantages over solid-state systems: compact design, thermal management, minimal alignment, spatial beam quality and low cost. Consequently, fiber systems have become a valued option for applications requiring continuous-wave or long-pulse operation. However, for pulsed operation the benefits of fiber come at the cost of tighter confinement of the light, leading to the accumulation of nonlinear optical effects which can rapidly degrade the pulse. For this reason, the performance of mode-locked fiber lasers has until recently lagged behind that of their solid-state counterparts. Nonetheless, recent developments in managing nonlinearity have led to mode-locked fiber systems with performance that directly competes with solid-state systems. The aim of this thesis is to investigate the ultrashort pulse propagation physics which helps to render the nonlinear limitations of fiber systems obsolete. From the development of dissipative soliton mode-locking, which allows for an order of magnitude increase in pulse energies, to mode-locking based on self-similar pulse evolution which allows for the shortest pulses from a fiber laser to date, this thesis covers recent significant developments in laser mode-locking in systems featuring normal group-velocity dispersion. In addition, preceding pulse evolutions which were investigated experimentally, such as lasers based on self-similar propagation in a passive fiber and so-called "wave-breaking free" lasers are analyzed numerically and integrated theoretically with recent developments. Finally, several notable future directions in fiber laser research are identified and a new technique for the possible generation of ever-higher performance mode-locked fiber lasers is explored.
Download or read book Ultrafast Lasers Based on Quantum Dot Structures written by Edik U. Rafailov and published by John Wiley & Sons. This book was released on 2011-04-08 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this monograph, the authors address the physics and engineering together with the latest achievements of efficient and compact ultrafast lasers based on novel quantum-dot structures and devices. Their approach encompasses a broad range of laser systems, while taking into consideration not only the physical and experimental aspects but also the much needed modeling tools, thus providing a holistic understanding of this hot topic.
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 Fundamentals of Fiber Lasers and Fiber Amplifiers written by Valerii (Vartan) Ter-Mikirtychev and published by Springer. This book was released on 2013-11-19 with total page 269 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, as well as industrial applications in the rapidly growing field of quantum electronics. 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 basic principles of solid-state physics and optical spectroscopy of laser active centers in fibers, main operational laser regimes, and practical recommendations and suggestions on fiber laser research, laser applications, and laser product development. The book will be useful for students, researchers, and professionals who work with lasers, in the optical communications, chemical and biological industries.
Download or read book Ultrafast FIber Lasers written by Frank Wise and published by Wiley. This book was released on 2016-01-26 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrafast Fiber Lasers is intended to be a self-contained treatment of short-pulse fiber lasers. It will include a review of initial short-pulse fiber lasers from the 1990s, along with a treatment of lasers based on new pulse evolutions discovered since 2002. The book will systematically explain pulse evolutions and review their performance features. The author will discuss the requirements of common applications of the technology and compare them to competing technologies.
Download or read book Advanced Ultrafast Fiber Laser Sources Enabled by Fiber Nonlinearities written by Wei Liu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Papers on Ultrafast Laser Technology written by Timothy R. Gosnell and published by . This book was released on 1991 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Ultrasshort Pulse Generation in Optical Fiber and Its Application to Biological Imaging written by Michael Buttolph and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of ultrafast lasers has had a significant impact on science and technology, including in applications as diverse as ultra-high intensity high-field science, laser micromachining, and laser eye surgery. Notably, Gérard Mourou and Donna Strickland shared the 2018 Nobel prize in physics for the development of chirped-pulse amplification, a technique that increased the pulse energy achievable in ultrashort pulses by many orders of magnitude. This achievement has allowed scientists and engineers to harness light's interaction with matter at previously unattainable intensities. While there are many ways to construct a laser that delivers high-energy ultrashort pulses, fiber lasers are frequently a particularly convenient solution. Fiber lasers can be more compact and robust than those constructed from solid-state media and typically deliver a near diffraction-limited spatial mode, which is critical for applications requiring tight focusing. However, the long propagation distance and tight confinement in the fiber waveguide enhances both linear and nonlinear material effects, greatly complicating the designs of ultrafast fiber lasers in particular. Despite these shortcomings, optical fiber is a versatile platform for ultrashort pulse generation, and careful understanding of wave propagation can lead to qualitatively new behavior. This thesis primarily investigates methods of generating short pulses outside the gain bandwidth of typical fiber lasers and the application of lasers with highly nonlinear designs to \textit{in vivo} multiphoton fluorescence microscopy. First, a two-color femtosecond laser that uses the molecular vibrations of silica glass to produce a pulse outside the ytterbium gain bandwidth is demonstrated. The synchronous nature of these pulses allows for a demonstration of simultaneous degenerate and nondegenerate two-photon excitation fluorescence microscopy, and the large frequency separation of the pulses results in fluorophore excitation over a large bandwidth. Next, optical parametric chirped pulse amplification is demonstrated in standard step-index birefringent optical fiber. The versatility of birefringent fiber allows for amplification even further from typical gain bands, and using a highly broadband pump pulse allows for the generation of the shortest pulses demonstrated through fiber optical parametric chirped pulse amplification to date. Lastly, an imaging comparison between a highly nonlinear fiber laser and a commercial fiber laser is presented, demonstrating the promise of such systems for application in multiphoton microscopy in particular. Future speculative directions for enhancing the performance, reliability, and versatility of fiber systems generating pulses outside the gain bandwidth of typical rare-earth dopants are also discussed.
Download or read book Development of Thulium Fiber Lasers for High Average Power and High Peak Power Operation written by Robert Andrew Sims and published by . This book was released on 2013 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on the development of a laser system utilizing chirped pulse amplification (CPA) to achieve record level energies and peak powers for ultrashort pulses in Tm-doped fiber. A mode-locked oscillator was built to generate femtosecond pulses operating with pJ energy. Pulses generated in the mode-locked oscillator were limited to low energies and contained spectral modulation due to the mode-locking mechanism, therefore, a Raman-soliton self-frequency shift (Raman-SSFS) amplifier was built to amplify pulses, decrease the pulse duration, and spectrally clean pulses. These pulses were amplified using chirped pulse amplification (CPA) in which, limiting factors for amplification were examined and a high peak power system was built. The primary limiting factors of CPA in fibers include the nonlinear phase accumulation, primarily through self-phase modulation (SPM), and gain narrowing. Gain narrowing was examined by temporally stretching pulses in a highly nonlinear fiber that both stretched the pulse duration and broadened the spectrum. A high peak power CPA system amplified pulses to 1 [microjoule] energy with 300 fs compressed pulses, corresponding to a peak power [greater than]3 MW. High peak power pulses were coupled into highly nonlinear fibers to generate supercontinuum.
Download or read book High Power Ultrafast Fiber Laser Systems written by Jens Limpert and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Ultrashort Pulse Fiber Lasers for Optical Communication Utilizing Semiconductor Devices written by Erik Robert Thoen and published by . This book was released on 2000 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
