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Brillouin Thulium Doped Fiber Laser At 19 Um And Bismuth Doped Fiber Laser At 17 Um
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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." --
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 Multi-wavelength Brillouin-erbium Fiber Laser Utilizing Bismuth-oxide Erbium Doped Fiber Incorporating High and Low Nonlinear Fibers by : Ramzia Salem
Download or read book Multi-wavelength Brillouin-erbium Fiber Laser Utilizing Bismuth-oxide Erbium Doped Fiber Incorporating High and Low Nonlinear Fibers written by Ramzia Salem and published by . This book was released on 2011 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare-Earth-Doped Fiber Lasers and Amplifiers, Second Edition discusses the essential principles, operating characteristics, and current technology of the main fiber laser and amplifier devices based on rare-earth-doped silica and fluorozirconate fibers. Covering all aspects of this revolutionary technology, the book reviews fiber fabrication methods and the basic spectroscopic properties of rare-earth ions in glasses, concentrates on the most important fiber laser sources, examines several advances in fiber amplifiers, and analyzes new findings and improvements in single-frequency operation, frequency tenability, broadband fiber sources, and blue-green and far-infrared fiber lasers.
Book Synopsis Rare-Earth-Doped Fiber Lasers and Amplifiers by : Hotan Shalibeik
Download or read book Rare-Earth-Doped Fiber Lasers and Amplifiers written by Hotan Shalibeik and published by Cuvillier Verlag. This book was released on 2007 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Thulium-doped and Co-doped Fiber Lasers for 1.9 Micron Region Operation by : Norazlina Saidin
Download or read book Development of Thulium-doped and Co-doped Fiber Lasers for 1.9 Micron Region Operation written by Norazlina Saidin and published by . This book was released on 2015 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiwavelength Brillouin/erbium Fiber Laser Assisted by Bismuth-based Erbium-doped Fiber Amplifier by : Nurul Shahrizan Shahabuddin
Download or read book Multiwavelength Brillouin/erbium Fiber Laser Assisted by Bismuth-based Erbium-doped Fiber Amplifier written by Nurul Shahrizan Shahabuddin and published by . This book was released on 2009 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thulium Doped Microsphere Laser and Fiber Laser by :
Download or read book Thulium Doped Microsphere Laser and Fiber Laser written by and published by . This book was released on 2005 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, the spectroscopic properties of thulium doped tellurite and thulium doped germanate glass are characterized. Absorption and emission spectra, lifetime, Fourier Transform Infrared Spectroscopy (FTIR), and thermo-gravimetric analysis are utilized to characterize the thulium doped tellurite bulk glass samples. Judd-Oflet theory, Fuchtbauer-ladenburg theory, Kushida's model, Burshtein's hopping model, Miyakawa's non-resonant energy transfer model are employed in ab-initio calculation of cross relaxation energy transfer. The fundamental mechanism of cross relaxation energy transfer is examined through ab-initio calculation and self-calibrating spectroscopy. Thulium doped tellurite glass microspheres are fabricated by spin casting technique. Single mode 2-mm laser is demonstrated from tellurite microsphere with high thulium doping concentration. General laser condition for self-terminating transition is discussed and concluded. Demonstration of 1.5-mm laser is achieved from a self-terminating transition of thulium doped in tellurite microsphere through a cooperative lasing technique. Highly efficient 1.9 micron fiber laser is demonstrated in thulium doped germanate fiber laser. The slope efficiency of the fiber laser is 58%, which indicates a quantum efficiency of 1.79. Single frequency laser operation at 1.9 micron has been successfully accomplished. A fiber based Fabry-Perot interferometer is utilized as a scanning filter to examine the single frequency operation. 4 W laser output has been achieved from a 40 cm long Tm-doped germanate double cladding fiber laser.
Book Synopsis Power-scaling of Ultrafast Thulium-doped Fiber-laser Systems by : Christian Gaida
Download or read book Power-scaling of Ultrafast Thulium-doped Fiber-laser Systems written by Christian Gaida and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dual-Wavelength Holmium-Doped Fiber Laser Pumped by Thulium–Ytterbium Co-Doped Fiber Laser by :
Download or read book Dual-Wavelength Holmium-Doped Fiber Laser Pumped by Thulium–Ytterbium Co-Doped Fiber Laser written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Papers on Rare-earth-doped Fiber Laser Sources and Amplifiers by : Michel J. F. Digonnet (Engineer)
Download or read book Selected Papers on Rare-earth-doped Fiber Laser Sources and Amplifiers written by Michel J. F. Digonnet (Engineer) and published by . This book was released on 1992 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mode-locked Thulium-doped Fiber Lasers for Supercontinuum Generation in the Mid-infrared by : Charles William Rudy
Download or read book Mode-locked Thulium-doped Fiber Lasers for Supercontinuum Generation in the Mid-infrared written by Charles William Rudy and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been significant interest in the "eye-safer" 2-[micrometer] wavelength range for applications varying from laser-driven particle acceleration to remote sensing to mid-infrared spectroscopy. Trivalent thulium has shown promise as a viable dopant to fulfill several requirements of these applications through its wide gain bandwidth, from ~1.8 to 2.1 [micrometers], and its ability to efficiently power scale. By further broadening the output spectrum of an ultrafast Tm-doped fiber source through supercontinuum generation (SCG), an instantaneously broadband mid-IR spectrum can be produced, which is particularly useful for mid-IR spectroscopy. In this dissertation, I demonstrate thulium's ability to generate ultrafast pulses in a mode-locked all-fiber laser, the figure-eight laser (F8L). Through the various operating regimes of the F8L, pulse widths ranging from 1.5 ps to 20 ns could be generated. Amplification of the F8L output allowed for temporal pulse compression to less than 400 fs with ~100 kW of peak power. In addition to the F8L, a subharmonic optical parametric oscillator (OPO) was explored as a possible 2-[micrometer] oscillator. The sync-pumped doubly-resonant OPO converted pulses from a 1-[micrometer] mode-locked fiber laser to 2 [micrometers], utilizing a PPLN crystal as the nonlinear gain medium. The subharmonic OPO generated less than 50-fs pulses, shorter than any reported Tm-doped oscillator to date. To utilize these sources for mid-IR spectroscopy, the spectral bandwidth can be significantly broadened through SCG. With a tapered chalcogenide fiber pumped by a Tm-doped fiber laser, the output spectrum was broadened from ~227 nm centered at 2.04 [micrometers] to span from 1 to 3.7 [micrometers].
Book Synopsis Mode-locked Lasers: Introduction To Ultrafast Semiconductor And Fiber Lasers by : Niloy K Dutta
Download or read book Mode-locked Lasers: Introduction To Ultrafast Semiconductor And Fiber Lasers written by Niloy K Dutta and published by World Scientific. This book was released on 2024-05-21 with total page 325 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.
Book Synopsis Rare Earth Doped Fiber Lasers and Amplifiers by : Michel J. F. Digonnet
Download or read book Rare Earth Doped Fiber Lasers and Amplifiers written by Michel J. F. Digonnet and published by . This book was released on 1993 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text examines the current technology of rare earth doped fibres, the laser sources and amplifiers made with these fibres, and fibre communication systems incorporating erbium-doped fibre amplifiers. The book: covers fibre fabrication techniques, basic spectroscopy and optical properties of rare earth in glasses and analytical models of fibre lasers and amplifiers; describes the main passive fibre components used in the fabrication of more elaborate fibre laser devices and systems; discusses the properties of Nd-doped and Er-doped fibre lasers operated as continuous wave, Q-switched and mode-locked sources; reviews the tunability and single frequency operation of fibre laser sources, as well as broadband fibre sources; includes an extensive review of fibre lasers based on rare earth doped fluoride fibres; and treats the main fibre-based systems using erbium-doped fibre amplifiers that have been demonstrated, including long-haul experimental communication systems and local area networks for TV and computers.
Book Synopsis Mode-locking of Thulium-doped and Erbium-doped Fiber Lasers by : Lynn Elizabeth Nelson
Download or read book Mode-locking of Thulium-doped and Erbium-doped Fiber Lasers written by Lynn Elizabeth Nelson and published by . This book was released on 1997 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Power Ytterbium and Thulium Fiber Lasers by : Justin S. Cook
Download or read book High Power Ytterbium and Thulium Fiber Lasers written by Justin S. Cook and published by . This book was released on 2021 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: High power fiber lasers have revolutionized many areas of both basic research and industry with their high power, high brightness output and capability for a compact, monolithic design. These systems are often run in multimode operation with few constraints on output. However, for many directed energy applications, such as spectral beam combining, the necessary laser parameters are far more stringent, requiring systems with state-of-the-art characteristics, such as single transverse mode operation, narrow linewidth and multi-kW output powers. Currently, further growth in output power of fiber laser systems at 1 and 2 [micrometer] is hindered by various nonlinear and thermal limitations within the fiber gain medium. Specifically, 1 [micrometer] systems are primarily hindered by transverse mode instability, while 2 [micrometer] lasers at high average powers often encounter an effect known as modulation instability. This dissertation explores the power scaling potential of both Yb-doped and Tm-doped fiber lasers along with related applications. Power scaling of two different Yb:fiber amplifiers is examined, where first, a novel confined-doping fiber geometry is used to generate 450 W single mode output, and second, through a demonstration of a Yb:fiber amplifier with > 2200 W output power and quasi-single mode beam quality. At 2 [micrometer], a new pumping architecture known as in-band pumping is utilized in an effort to take Tm-doped fiber amplifiers first to the multi-100 W level and then into the multi-kW regime. An in-band pumped laser is developed and characterized with over 75 W output power and > 80% slope efficiency. The last laser system constructed is a tunable, narrow linewidth Tm-doped fiber laser used to systematically induce and study the effects of thermal blooming. Results obtained from scanning the wavelength across individual atmospheric absorption resonances are presented, along with time-resolved data obtained at a fixed wavelength. Finally, two candidate fiber designs are presented for power scaling of in-band pumping at 2 [micrometer] to the multi-kW power level. Numerical studies detail the performance of these two fiber designs at high average powers and their ability to suppress the onset of modulation instability. Taken together, the results discussed in this dissertation further the science of fiber lasers for directed energy applications.
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:
