Download or read book Status of Large Neodymium Glass Lasers written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The elements of a Nd: Glass laser chain as it is constructed for fusion experiments are described. A brief overview of the ARGUS and SHIVA systems employing Nd lasers is given. (MOW).
Download or read book A 6 GW NEODYMIUM GLASS LASER written by M. P. Vanyukov and published by . This book was released on 1968 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 6-GW neodymium glass laser with a simple phototropic Q-switch is described. The laser consists of three cylindrical rods in series, each 250 mm long and 45 mm in diameter. Each rod is placed in a multielliptic reflector and is pumped by six direct flashlamps. The external cavity consists of one 99.6%-reflective dielectric mirror and a Q-switch placed between the first and second rods. The Q-switch consists of a cell made of two plane-parallel (error less than 1 min of arc) glass plates joined optically through a 1-cm-thick glass ring. The cell is filled with a polymethine-dye solution to a concentration at which the solution is 99% reflective at 1.06 micrometer. At maximum pumping energies, single 100-120-j, 20-nanosec pulses were obtained. By increasing the pumping energy or by diluting the absorber solution, two or more pulses could be generated. In the case of two-pulse operation (50-80 microsec. repetition frequency), the total output was 200 j. The use of a phototropic liquid switch and large-diameter neodymium glass rods resulted in energy and power densities of 6 j/sq cm and 0.3-0.4 Gw/sq cm, respectively.
Download or read book Design and Performance Characteristics of a Modelocked Neodymium glass Laser written by Ninnis, Ronald Michael and published by 1972.. This book was released on 1972 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Peak Power Nd Glass Laser Systems written by D. C. Brown and published by Springer. This book was released on 2013-04-17 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Time resolved Spectrum of a Neodymium Glass Laser written by Wayne Hartung Keene and published by . This book was released on 1964 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A 1 GW NEODYMIUM GLASS LASER written by A. A. Mak and published by . This book was released on 1968 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The system consists of a master laser and a two-stage laser amplifier. The master-laser head comprises a neodymium glass rod 20 mm in diameter and 260 mm long, an IFP-5000 2-kj flashlamp, and a cylindrical pump reflector. The amplifier heads are identical and in each case the active rod is bathed in an aqueous solution of sodium nitrite to retard uv-induced aging of crystals and to reduce thermal stresses. The output of the 100-cm-long resonator was passed through a 30% reflective stack and the Q-switching was done by means of a rotating prism (30,000 rpm) and a plane-parallel plate with an end reflector which also served as an angular selector. The master laser operated in the free-running mode at an efficiency of 3.5%, generating 140-150 MW 70 nanosec pulses with a 3-5 min of arc beam divergence. Seventy nanosec 500 MW and 1 GW pulses were obtained at the first and second (output) stages, respectively, for an 80 MW input. (Author).
Download or read book Optimization of Nd Glass Lasers with Phosphate Laser Glass written by J. M. McMahon and published by . This book was released on 1976 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report the impact of phosphate base neodymium glass on laser design for fusion experiments is examined. It is shown that in an optimum amplifier this glass solves the self-focusing problems for pulses longer than 250 ps. Large systems (> 100 kJ) appear possible with this glass with overall efficiencies on the order of 0.2% for nanosecond pulses. For short pulses this glass gives at least a factor of five improvement over silicate systems in terms of cost per terawatt. Phosphate optimized rod amplifier systems are also examined, and found far less desirable than the disc system, both in cost and complexity.
Download or read book Design and Performance of a Multiterawatt Subpicosecond Neodymium Glass Laser written by and published by . This book was released on 1990 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broad-band solid-state materials such as Nd:Glass, Ti:Sapphire and Alexandrite, exhibit saturation fluences on the order of Joules/cm2. Unfortunately, the large stored energy density of these solid state materials cannot be accessed directly with short pulses due to beam filamentation caused by the intensity dependent refractive index. This limits the power density in a solid state amplifier to only a few GW/cm2. The application of chirped- pulsed amplification (CPA) to solid-state lasers circumvents this problem. With the CPA technique, a chirped, comparatively long pulse is produced and compressed to a short pulse only after amplification. The intensity in the amplifiers is kept below the level for significant nonlinear phase distortion. In this paper, we present the design and performance of a small scale Nd:Glass laser system employing chirped-pulse amplification to produce subpicosecond pulses exhibiting peak power exceeding 10 TW. 30 refs., 2 figs.
Download or read book Study of Neodymium Doped Glass Laser Material written by Dennis John McCarthy and published by . This book was released on 1970 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neodymium Laser Glass Improvement Program written by and published by . This book was released on 1963 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of the influence of various glass constituents on laser properties continued. A systematic investigation confirmed that lifetime varies inversely with Na2O concentration and directly with K2O, Rb2O and Cs2O concentrations. A new laser cavity was constructed for the comparison of thresholds of laser rods made from small experimental glass melts. A system was set up for making a direct experimental determination of the quantum efficiency of the fluorescence process to check the calculated values. Measurement was made on a Ba crown glass containing 2 wt.% Nd2O3. A program is underway to survey existing glasses and/or to design new ones which meet this requirement. (Author).
Download or read book The Tem00 Mode in a Mode locked Neodymium glass Laser written by Robert A. Fisher and published by . This book was released on 1970 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operating Characteristics of a Neodymium Glass Laser written by N. V. Grevtsev and published by . This book was released on 1970 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dependence of operation characteristics of the Nd glass laser on the frequency of pumping pulses was followed experimentally. The investigation was carried out on the active element of a LPS-28-2 Nd glass. An ISPT-6000 pumping lamp was used. The active element and the pumping lamp were cooled with a given aqueous solution at 20 degrees. Other experimental settings were: distance between mirrors of the resonator 210 mm; a given frequency of pumping pulses; duration of the pulses 1-8 mu sec. A dependence of the radiation energy on the frequency of pumping pulses exhibits a max., a position of which is practically independent of the pumping energy. For the laser described, a maximum radiation energy in the periodic regime of operation was observed, when the pumping energy was set to the value corresponding to the threshold pumping energy in the single-frequency regime. (Author).
Download or read book Characterization of Neodymium glass Mode locked Laser Radiation written by Robert Charles Eckardt and published by . This book was released on 1971 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Solid State Lasers written by B Denker and published by Elsevier. This book was released on 2013-02-20 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-state lasers which offer multiple desirable qualities, including enhanced reliability, robustness, efficiency and wavelength diversity, are absolutely indispensable for many applications. The Handbook of solid-state lasers reviews the key materials, processes and applications of solid-state lasers across a wide range of fields.Part one begins by reviewing solid-state laser materials. Fluoride laser crystals, oxide laser ceramics, crystals and fluoride laser ceramics doped by rare earth and transition metal ions are discussed alongside neodymium, erbium and ytterbium laser glasses, and nonlinear crystals for solid-state lasers. Part two then goes on to explore solid-state laser systems and their applications, beginning with a discussion of the principles, powering and operation regimes for solid-state lasers. The use of neodymium-doped materials is considered, followed by system sizing issues with diode-pumped quasi-three level materials, erbium glass lasers, and microchip, fiber, Raman and cryogenic lasers. Laser mid-infrared systems, laser induced breakdown spectroscope and the clinical applications of surgical solid-state lasers are also explored. The use of solid-state lasers in defense programs is then reviewed, before the book concludes by presenting some environmental applications of solid-state lasers.With its distinguished editors and international team of expert contributors, the Handbook of solid-state lasers is an authoritative guide for all those involved in the design and application of this technology, including laser and materials scientists and engineers, medical and military professionals, environmental researchers, and academics working in this field. Reviews the materials used in solid-state lasers Explores the principles of solid-state laser systems and their applications Considers defence and environmental applications
Download or read book The Design and Development of a Neodymium Glass Laser with Capacitor and Homopolar Generator Energy Storage written by E. K. Inall and published by . This book was released on 1975 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Fundamentals written by William T. Silfvast and published by Cambridge University Press. This book was released on 2008-07-21 with total page 999 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Fundamentals provides a clear and comprehensive introduction to the physical and engineering principles of laser operation and design. Simple explanations, based throughout on key underlying concepts, lead the reader logically from the basics of laser action to advanced topics in laser physics and engineering. Much new material has been added to this second edition, especially in the areas of solid-state lasers, semiconductor lasers, and laser cavities. This 2004 edition contains a new chapter on laser operation above threshold, including extensive discussion of laser amplifiers. The clear explanations, worked examples, and many homework problems will make this book invaluable to undergraduate and first-year graduate students in science and engineering taking courses on lasers. The summaries of key types of lasers, the use of many unique theoretical descriptions, and the extensive bibliography will also make this a valuable reference work for researchers.
Download or read book Janus Neodymium Glass Laser Operations Manual written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A manual, prepared to guide personnel in operating and maintaining the Janus glass laser system, is presented. System components are described in detail. Step-by-step procedures are presented for firing the laser and for performing routine maintenance and calibration procedures.
