Cleo Europe/Iqec 2013)

Total Page:16

File Type:pdf, Size:1020Kb

Cleo Europe/Iqec 2013) 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference (CLEO EUROPE/IQEC 2013) Munich, Germany 12-16 May 2013 Pages 1-717 IEEE Catalog Number: CFP13ECL-POD ISBN: 978-1-4799-0592-8 1/2 TABLE OF CONTENTS CA-1.1-SUN - 118 NM VUV GENERATION USING MICROCHIP LASER ...........................................................................................1 Bhandari, R. ; Tsuji, N. ; Suzuki, T. ; Nishifuji, M. ; Taira, T. CA-1.2-SUN - ABSORPTION COEFFICIENT AND RAMAN GAIN IN CVD DIAMOND AS FUNCTIONS OF PUMP WAVELENGTH: TOWARDS EFFICIENT DIAMOND RAMAN LASERS ...............................................................................2 Savitski, V.G. ; Reilly, S. ; Lubeigt, W. ; Kemp, A.J. CA-1.3-SUN - NARROW-LINEWIDTH UV LASER SOURCE AT 257 NM ............................................................................................3 Delen, X. ; Deyra, L. ; Benoit, A. ; Hanna, M. ; Balembois, F. ; Cocquelin, B. ; Sangla, D. ; Salin, F. ; Didierjean, J. ; Georges, P. CA-1.4-SUN - POWER SCALING OF EFFICIENT DIAMOND RAMAN LASERS WITH 1240 NM AND 1485 NM OUTPUT......................................................................................................................................................................................................4 McKay, A. ; Kitzler, O. ; Mildren, R.P. CA-1.5-SUN - MEGAWATT PEAK POWER, 1 KHZ, 266 NM SUB NANOSECOND LASER SOURCE BASED ON SINGLE-CRYSTAL FIBER AMPLIFIER..............................................................................................................................................5 Deyra, Loic ; Martial, Igor ; Balembois, Francois ; Diderjean, Julien ; Georges, Patrick CA-1.6-SUN - CONTINUOUS-WAVE EMISSION FROM A SELF-RAMAN VORTEX LASER.........................................................6 Lee, A.J. ; Omatsu, T. ; Pask, H.M. CA-2.1-SUN - TUNABLE INTRACAVITY BLUE/VIOLET LIGHT GENERATION IN A CR:LICAF+BIBO SOLID-STATE EXTERNAL-CAVITY LASER ............................................................................................................................................7 Maestre, H. ; Torregrosa, A.J. ; Capmany, J. CA-2.2-SUN - HIGH POWER SINGLE-CRYSTAL FIBER CW 946 NM LASER AND BLUE GENERATION BASED ON RUBIDIUM-DOPED PPKTP......................................................................................................................................................8 Deyra, L. ; Liljestrand, C. ; Didierjean, J. ; Canalias, C. ; Laurell, F. ; Balembois, F. ; Georges, P. CA-2.3-SUN - ANISOTROPIC ABSORPTION AND LUMINESCENCE AND QUASI-CW LASER OPERATION OF EU3+:KGD(WO4)2 MONOCLINIC CRYSTAL ....................................................................................................................................9 Loiko, P.A. ; Dashkevich, V.I. ; Bagaev, S.N. ; Orlovich, V.A. ; Yasukevich, A.S. ; Yumashev, K.V. ; Kuleshov, N.V. ; Vatnik, S.M. ; Pavlyuk, A.A. CA-2.4-SUN - Q-SWITCHED AND MODE-LOCKED 639-NM PRRYLF LASER WITH CR:YAG SATURABLE ABSORBER ......................................................................................................................................................................................................10 Abe, R. ; Kojou, J. ; Masuda, K. ; Hirosawa, K. ; Kannari, F. CA-2.5-SUN - NOVEL RARE EARTH SOLID STATE LASERS WITH EMISSION WAVELENGTHS IN THE VISIBLE SPECTRAL RANGE......................................................................................................................................................................11 Metz, P.W. ; Moglia, F. ; Reichert, F. ; Muller, S. ; Marzahl, D.-T. ; Hansen, N.-O. ; Krankel, C. ; Huber, G. CA-2.6-SUN - MULTI-WATT DIODE-PUMPED ALEXANDRITE LASER OPERATION ................................................................12 Damzen, M.J. ; Thomas, G.M. ; Minassian, A. CA-3.1-SUN - MID-IR SOLID-STATE LASERS FOR SPECTROSCOPY AND METROLOGY APPLICATIONS........................13 Coluccelli, N. ; Gambetta, A. ; Cassinerio, M. ; Laporta, P. ; Galzerano, G. CA-3.2-SUN - HIGH-PULSE-ENERGY CRYOGENIC HO:YLF LASER PUMPED BY A TM:FIBER LASER..............................14 Fonnum, H. ; Lippert, E. ; Haakestad, M.W. CA-3.3-SUN - IN-BAND PUMPED HO3+:KY3FI10 2 µM LASER ..........................................................................................................15 Schellhorn, M. ; Parisi, D. ; Veronesi, S. ; Bolognesi, G. ; Eichhorn, M. ; Tonelli, M. CA-3.4-SUN - IN-BAND DIODE PUMPED HIGH POWER HO:YLF LASER ......................................................................................16 Scholle, K. ; Lamrini, S. ; Gatzemeier, F. ; Koopmann, P. ; Fuhrberg, P. CA-3.5-SUN - POWER SCALING OF THIN-DISK TM-LASERS BASED ON TM:KLU(WO4)2/KLU(WO4)2 EPITAXY ..........................................................................................................................................................................................................17 Vatnik, S. ; Vedin, I. ; Segura, M. ; Mateos, X. ; Cinta Pujol, M. ; Aguilo, M. ; Diaz, F. ; Petrov, V. ; Griebner, U. CA-4.1-SUN - SOLID STATE OPTICAL CRYCOOLERS: DEVELOPMENTS AND PROSPECTIVE............................................18 Sheik-Bahae, M. ; Melgaard, S. ; Ghasemkhani, M. ; Albrecht, A. ; Epstein, R. ; Seletskiy, D. CA-4.2-SUN - FIRST LASER OPERATION FROM DIODE-PUMPED HIGHLY DOPED YB:GD2O3 AND YB:Y2O3 CRYSTALS GROWN BY FLUX METHOD..............................................................................................................................19 Druon, F. ; Velazquez, M. ; Veber, P. ; Janicot, S. ; Viraphong, O. ; Buse, G. ; Ahmed, M.A. ; Graf, T. ; Rytz, D. ; Georges, P. CA-4.3-SUN - HIGH POWER YB:CALGO MULTI-CRYSTAL OSCILLATOR ..................................................................................20 Calendron, A.-L. ; Lederer, M. ; Cankaya, H. ; Kartner, F.X. CA-4.4-SUN - HIGH POWER AMPLIFICATION IN YB:YAG SINGLE CRYSTAL FIBERS...........................................................21 Piehler, S. ; Delen, X. ; Didierjean, J. ; Aubry, N. ; Graf, T. ; Ahmed, M.A. ; Balembois, F. ; Georges, P. CA-4.5-SUN - 12W EFFICIENT AIR COOLED DIODE-PUMPED ACTIVELY Q-SWITCHED YB:KGD(WO4)2 LASER...............................................................................................................................................................................................................22 Kisel, V.E. ; Rudenkov, A.S. ; Gulevich, A.E. ; Kondrtyuk, N.V. ; Yasukevich, A.S. ; Kuleshov, N.V. ; Pavlyuk, A.A. CA-5.1-TUE - TOWARDS HIGH AVERAGE OUTPUT POWER AND SHORT PULSE DURATION OF SESAM MODELOCKED THIN DISK LASERS .......................................................................................................................................................23 Schriber, C. ; Saraceno, C.J. ; Emaury, F. ; Golling, M. ; Beil, K. ; Krankel, C. ; Sudmeyer, T. ; Huber, G. ; Keller, U. CA-5.2-TUE - YB:CALGO THIN-DISK FEMTOSECOND OSCILLATOR ..........................................................................................24 Ricaud, S. ; Jaffres, A. ; Wentsch, K. ; Suganuma, A. ; Viana, B. ; Loiseau, P. ; Weichelt, B. ; Abdou-Ahmed, M. ; Voss, A. ; Graf, T. ; Rytz, D. ; Honninger, C. ; Mottay, E. ; Georges, P. ; Druon, F. CA-5.3-TUE - YB:CAGDALO4 THIN DISK LASER WITH 70% SLOPE EFFICIENCY...................................................................25 Beil, K. ; Deppe, B. ; Krankel, C. CA-5.4-TUE - 109 W YB:YAL3(B03)4 THIN-DISK OSCILLATOR........................................................................................................26 Weichelt, B. ; Wentsch, K.S. ; Voss, A. ; Gross, A. ; Wesemann, V. ; Rytz, D. ; Ahmed, M.A. ; Graf, T. CA-5.5-TUE - AN YB:CAF2 THIN-DISK LASER......................................................................................................................................27 Wentsch, K.S. ; Weichelt, B. ; Druon, F. ; Ahmed, M.A. ; Graf, T. CA-5.6-TUE - 1-KHZ PULSED PUMPED YB:YAG THIN DISK REGENERATIVE AMPLIFIER...................................................28 Miura, T. ; Chyla, M. ; Smrz, M. ; Nagisetty, S.S. ; Severova, P. ; Novak, O. ; Endo, A. ; Mocek, T. CA-6.1-TUE - CARBON NANOTUBE AND GRAPHENE SATURABLE ABSORBERS: A NEW GENERIC MODE-LOCKING TECHNOLOGY?...........................................................................................................................................................29 Rotermund, F. CA-6.2-TUE - CW, Q-SWITCHED AND MODE-LOCKING OSCILLATIONS AT 2.1 µM IN NOVEL TM3+:LU2O3 CERAMICS LASERS............................................................................................................................................................30 Antipov, O.L. ; Novikov, A.A. ; Zinoviev, A.P. ; Yagi, H. ; Lagatsky, A.A. ; Sibbett, W. ; Ivakin, E.V. CA-6.3-TUE - FEMTOSECOND PULSE GENERATION WITH TM-DOPED SESQUIOXIDES ......................................................31 Lagatsky, A.A. ; Koopmann, P. ; Antipov, O.L. ; Brown, C.T.A. ; Huber, G. ; Sibbett, W. CA-6.4-TUE - SUB-70 FS KERR-LENS MODE-LOCKED YB:CAF2 LASER OSCILLATOR DELIVERING UP TO 2.3 W ...........................................................................................................................................................................................................32 Sevillano, P. ; Machinet, G. ; Guichard, F. ; Dubrasquet, R. ; Camy, P. ; Doualan, J.-L. ; Moncorge, R. ; Georges, P. ; Druon, F. ; Descamps, D. ; Cormier, E. CA-6.5-TUE - 21.4 KW PEAK POWER FROM A GIGAHERTZ MULTIMODE-DIODE-PUMPED SOLID- STATE LASER WITH CARRIER ENVELOPE OFFSET FREQUENCY DETECTION.....................................................................33
Recommended publications
  • Influence of the Laser Wavelength on Harmful Effects on Granite Due to Biofilm Removal
    coatings Article Influence of the Laser Wavelength on Harmful Effects on Granite Due to Biofilm Removal P. Barreiro 1, A. Andreotti 2, M. P. Colombini 2, P. González 1 and J. S. Pozo-Antonio 3,* 1 Dpto. Física Aplicada, Escola de Enxeñaría Industrial, University of Vigo, 36310 Vigo, Spain; [email protected] (P.B.); [email protected] (P.G.) 2 Department of Chemistry and Industrial Chemistry, University of Pisa, 56126 Pisa, Italy; [email protected] (A.A.); [email protected] (M.P.C.) 3 Dpto. Enxeñaría dos Recursos Naturais e Medio Ambiente, Escola de Enxeñaría de Minas e Enerxía, University of Vigo, 36310 Vigo, Spain * Correspondence: [email protected]; Tel.: +34-986814077 Received: 29 January 2020; Accepted: 21 February 2020; Published: 25 February 2020 Abstract: The colonization of stone-built monuments by different organisms (algae, fungi, lichens, bacteria, and cyanobacteria) can lead to biodeterioration of the stone, negatively affecting the artistic value of the heritage. To address this issue, laser cleaning has been widely investigated in recent years, due to the advantages it offers over traditional mechanical and chemical methods: it is gradual, selective, contactless, and environmentally friendly. That said, the laser parameters should be optimized in order to avoid any by-effects on the surface as a result of overcleaning. However, as the adjustment of each parameter to clean polymineralic stones is a difficult task, it would be useful to know the effect of overcleaning on the different forming minerals depending on the wavelength used. In this paper, three different wavelengths (355 nm, 532 nm, and 1064 nm) of a Q-Switch neodymium-doped yttrium aluminum garnet (Nd:Y3Al5O12) laser, commonly known as QS Nd:YAG laser were applied to extract a naturally developed sub-aerial biofilm from Vilachán granite, commonly used in monuments in the Northwest (NW)Iberian Peninsula.
    [Show full text]
  • To Download the Proceedings
    Russian Academy of Sciences Institute of Applied Physics International Symposium TTOOPPIICCAALL PPRROOBBLLEEMMSS OOFF NNOONNLLIINNEEAARR WWAAVVEE PPHHYYSSIICCSS 22 – 28 July, 2017 Moscow – St. Petersburg, Russia P R O C E E D I N G S Nizhny Novgorod, 2017 NWP-1: Nonlinear Dynamics and Complexity NWP-2: Lasers with High Peak and High Average Power NWP-3: Nonlinear Phenomena in the Atmosphere and Ocean WORKSHOP: Magnetic Fields in Laboratory High Energy Density Plasmas (LaB) CREMLIN WORKSHOP: Key Technological Issues in Construction and Exploitation of 100 Pw Lass Lasers Board of Chairs Henrik Dijkstra, Utrecht University, The Netherlands Alexander Feigin, Institute of Applied Physics RAS, Russia Julien Fuchs, CNRS, Ecole Polytechnique, France Efim Khazanov, Institute of Applied Physics RAS, Russia Juergen Kurths, Potsdam Institute for Climate Impact Research, Germany Albert Luo, Southern Illinois University, USA Evgeny Mareev, Institute of Applied Physics RAS, Russia Catalin Miron, Extreme Light Infrastructure, Romania Vladimir Nekorkin, Institute of Applied Physics RAS, Russia Vladimir Rakov, University of Florida, USA Alexander Sergeev, Institute of Applied Physics RAS, Russia Ken-ichi Ueda, Institute for Laser Science, the University of Electro-Communications, Japan Symposium Web site: http://www.nwp.sci-nnov.ru Organized by Institute of Applied Physics of the Russian Academy of Sciences www.iapras.ru GYCOM Ltd www.gycom.ru International Center for Advanced Studies in Nizhny Novgorod (INCAS) www.incas.iapras.ru Supported by www.avesta.ru www.lasercomponents.ru www.coherent.com www.lasertrack.ru www.thalesgroup.com www.standa.lt www.phcloud.ru www.epj.org The electron version of the NWP-2017 Symposium materials was prepared at the Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, Russia CONTENTS PLENARY TALKS J.-C.
    [Show full text]
  • Preparatory Document
    Joint thematic Workshop of Institut Lasers Plasmas, and LaserLab-Europe NA3 networking activity : Thematic Network on High Energy Lasers Next generation high energy lasers for basic research : Need for versatile high rep rate facilities Bordeaux University, September 3rd, 2010 1. RATIONALE The French government has issued a call for medium-size Research Infrastructures, which may represent a major opportunity to boost High Energy Density research, both at French and European levels. Under the aegis of Institut Lasers Plasmas (France), and LaserLab- Europe 2 , a dedicated workshop should unravel the general needs and scientific cases for a next generation HED laser facility of high repetition rates (one shot per few minutes) but moderate energies, and discuss how such a facility can be coordinated with other HED facilities and programs at French and European levels. 2. SCIENTIFIC CONTEXT The physics of laser-matter interaction in the domain of High Energy Density (HED) matter requires large scale laser facilities with laser pulses of many kilojoules. The technological frontier is now provided by such lasers systems as the National Ignition Facility (NIF), USA, and Laser MegaJoule (LMJ) near Bordeaux, or by Petawatt high energy lasers such as Omega-EP, Rochester University, USA, LFEX, Osaka University, Japan, or PETAL, Bordeaux. However, because of their extremely high operational cost and relatively low number of shots available, smaller sized facilities, so called "intermediate", are absolutely crucial to all scientific and technological developments in the field. The French national taskforce on the development of powerful lasers, ILP/GRALE, has identified four classes of high energy lasers: – Lasers of megajoule level; – Lasers of large but intermediate scale with a pulse energy larger than 10 kJ; – Lasers of kilojoule scale, such as LULI2000; – Sub-kilojoule scale lasers providing a combination of accessibility and flexibility of use.
    [Show full text]
  • General Disclaimer One Or More of the Following Statements May Affect This Document
    General Disclaimer One or more of the Following Statements may affect this Document This document has been reproduced from the best copy furnished by the organizational source. It is being released in the interest of making available as much information as possible. This document may contain data, which exceeds the sheet parameters. It was furnished in this condition by the organizational source and is the best copy available. This document may contain tone-on-tone or color graphs, charts and/or pictures, which have been reproduced in black and white. This document is paginated as submitted by the original source. Portions of this document are not fully legible due to the historical nature of some of the material. However, it is the best reproduction available from the original submission. Produced by the NASA Center for Aerospace Information (CASI) MASSACHUSETTS INSTITUTE OF TEC'.-INOLOGY DEPARTMENT OF OCEAN ENGINEERING SEP 83 CAMBRIDGE. MASS. 02139 RECEIVED FAVUV wrw STI DEPI- , FINAL REPORT "Wo Under Contract No. NASW-3740 (M.I.T. OSP #93589) ON FEASIBILITY OF REMOTELY MANIPULATED WELDING IN SPACE -A STEP IN THE DEVELOPMENT OF NOVEL JOINING TECHNOLOGIES- Submitted to Office of Space Science and Applications Innovative Utilization of the Space Station Program Code E NASA Headquarters Washington, D.C. 20546 September 1983 by Koichi Masubuchi John E. Agapakis Andrew DeBiccari Christopher von Alt (NASA-CR-1754371 ZEASIbILITY CF RZ,1JTL": Y `84-20857 MANIPJLATED WELLINu iN SPAI.E. A STEP IN THE Uc.Y1;LuPdENT OF NUVLL Ju1NING Tkk ;HNuLUGIES Final Peport (c;dssachu6etts Irist. or Tccli.) U11CIds ibJ p HC Al2/Mk AJ 1 CSCL 1jI G:i/.i7 OOb47 i i rACKNOWLEDGEMENT The authors wish to acknowledge the assistance provided by M.I.T.
    [Show full text]
  • Welding with High Power Diode Lasers
    White Paper Welding with High Power Diode Lasers by Keith Parker, Sr. Business Development Manager – Direct Diode & Fiber Laser Systems Laser welding with CO2, fiber and various types of solid- minimize grain growth in high strength, low alloy steels. state lasers is a well established process currently utilized in Even though no filler material is typically used for keyhole a wide range of industries and applications. However, recent welding, the high temperatures of keyhole welding can technological developments in high power diode laser vaporize volatile materials, producing a different technology have expanded the capabilities of laser welding, composition in the fusion zone than in the base metal. Also, as well as changed its cost characteristics. As a result, diode with hardenable steels, the rapid cooling generates fully lasers are poised to replace traditional laser sources for some martensitic fusion zones and hardened heat affected zones. applications and also expand laser welding implementation into entirely new areas. In contrast, if the threshold laser power required to initiate a keyhole is not reached, then only surface melting occurs. This article provides an introduction to high-power diode Because laser energy is absorbed almost entirely at the laser technology and its use in welding. In particular, it surface and heat transfer into the bulk material occurs by compares the capabilities and characteristics of diode lasers conduction, this is called conduction mode welding. with other welding laser technologies, reviews the Conduction mode welds are typically shallow and most often applications best suited for diode welding and provides some have a bowl-shaped profile. The heat affected zone is larger guidance on what materials are compatible with this process.
    [Show full text]
  • Role of Laser Beam in Welding and Assembly: a Status Review B
    Role of Laser Beam in Welding and Assembly: A Status Review B. Narayana Reddy, P. Hema, C. Eswara Reddy*, G. Padmanabhan Department of Mechanical Engineering, College of Engineering Sri Venkateswara University, Tirupati – 517 502, INDIA. Abstract Laser Technology is gaining importance both in manufacturing / production industry.Metal joining by welding of similar and dissimilar metals is the most important process. Further, the effective utilization of metals also influences economic aspects, due to differences in chemical composition, coefficients of thermal expansion and thermal conductivity of base metals to be welded. Dissimilar metals are being welded in energy generating plants, chemical, nuclear and marine industries. Hence, design of the joints and their strength conditions are important. Thus, advanced process / techniques such as Laser / Laser Beam Welding (LBW) of metals is in forefront not only to achieve sound joint / assembly but also reliability. Therefore, a solemn attempt is made in the present paper to present a brief status review based on seventy two various contributions in terms of research / experimental studies, since the LBW possesses high speed, low heat input per unit volume and deep penetration. Hence, it is necessary to identify the effect on weld bead size, microstructure of the weld joint or assembly not only on the steels but also other metals. The paper also presents the importance of visual inspection and Non- Destructive Tests (NDT) which are being conducted on welds to ascertain the joint integrity and quality of the welded joints and on the assembly. Keywords:Laser Beam, Welding, Heat Affecting Zone, Assembly, Joining, Alloy Steels,Quality, Reliability. 1.
    [Show full text]
  • Europe for Inertial Confinement Fusion
    EuropeEurope forfor InertialInertial ConfinementConfinement FusionFusion Technology Watch Workshop on IFE-KIT Madrid March 22, 2010 Jiri Ullschmied Association EURATOM IPP.CR PALS Research Centre, a joint laboratory of the Institute of Physics and Institute of Plasma Physics, Academy of Sciences of the Czech Republic www.pals.cas.cz Paper Layout State of the art - where are we now Lasers on the path to fusion National Ignition Facility Indirect drive / direct drive European lasers, LMJ Coordinated European effort in the laser research Various ignition scenarios - EU KIT contributions SWOT Summary State of the art - where are we now Steadily increasing progress in laser technology since 1960, lasers becoming the most dynamic field of physical research in the last decade. Megajoule and multi-PW lasers have become reality, laser beam focused intensity has been increased up to 1022 W/cm2 (Astra, UK). Last-generation high-power lasers - an unmatched tool for high-energy density physical research and potential fusion drivers. High-energy lasers worldwide Lasers on the path to Fusion Max output energy of single beam systems (Nd-glass, iodine, KrF) in the 1-10 kJ range, while EL > 1 MJ is needed for central ignition => multi-beam laser systems. Various fast ignition schemes are have been proposed, which should decrease the required energy by an order of magnitude. History and future of IFE lasers HiPER Three main tasks demonstrate ignition and burn demonstrate high energy gain develop technology for an IFE power plant Ignition to be demonstrated at NIF (2010?) and LMJ lasers. The natural next step: HiPER. National Ignition Facility NIF is a culmination of long line of US Nd-glass laser systems Nova, OMEGA and NIF shot rates measured in shots/day.
    [Show full text]
  • Solid State Laser
    SOLID STATE LASER Edited by Amin H. Al-Khursan Solid State Laser Edited by Amin H. Al-Khursan Published by InTech Janeza Trdine 9, 51000 Rijeka, Croatia Copyright © 2012 InTech All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license, which allows users to download, copy and build upon published articles even for commercial purposes, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work. Any republication, referencing or personal use of the work must explicitly identify the original source. As for readers, this license allows users to download, copy and build upon published chapters even for commercial purposes, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained in the book. Publishing Process Manager Iva Simcic Technical Editor Teodora Smiljanic Cover Designer InTech Design Team First published February, 2012 Printed in Croatia A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from [email protected] Solid State Laser, Edited by Amin H.
    [Show full text]
  • Main Types of Lasers Used for Manufacturing- Key Properties and Key Applications
    Main Types of Lasers Used for Manufacturing- Key Properties and Key Applications Tom Kugler Fiber Systems Mgr. Laser Mechanisms, Inc. www.lasermech.com LME 2011 Topics • Laser Output Wavelengths • Laser Average Power • Laser Output Waveforms (Pulsing) • Laser Peak Power • Laser Beam Quality (Focusability) • Key Properties • Key Applications • Beam Delivery Styles 2 Tom Kugler- Laser Mechanisms Compared to standard light sources… • Laser Light is Collimated- the light rays are parallel to and diverge very slowly- they stay concentrated over long distances- that is a “laser beam” • Laser Light has high Power Density- parallel laser light has a power density in watts/cm2 that is over 1000 times that of ordinary incandescent light • Laser Light is Monochromatic- one color (wavelength) so optics are simplified and perform better • Laser light is highly Focusable- low divergence, small diameter beams, and monochromatic light mean the laser can be focused to a small focal point producing power densities at focus 1,000,000,000 times more than ordinary light. 3 Tom Kugler- Laser Mechanisms Laser Light • 100W of laser light focused to a diameter of 100um produces a power density of 1,270,000 Watts per square centimeter! 4 Tom Kugler- Laser Mechanisms Examples of Laser Types • Gas Lasers: Electrical Discharge in a Gas Mixture Excites Laser Action: – Carbon Dioxide (CO2) – Excimer (XeCl, KrF, ArF, XeF) • Light Pumped Solid State Lasers: Light from Lamps or Diodes Excites Ions in a Host Crystal or Glass: – Nd:YAG (Neodymium doped Yttrium Aluminum
    [Show full text]
  • Laser Beams a Novel Tool for Welding: a Review
    IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.Volume 8, Issue 6 Ver. III (Nov. - Dec. 2016), PP 08-26 www.iosrjournals.org Laser Beams A Novel Tool for Welding: A Review A Jayanthia,B, Kvenkataramananc, Ksuresh Kumard Aresearch Scholar, SCSVMV University, Kanchipuram, India Bdepartment Of Physics, Jeppiaar Institute Of Technology, Chennai, India Cdepartment Of Physics, SCSVMV University, Kanchipuram, India Ddepartment Of Physics, P.T. Lee CNCET, Kanchipuram, India Abstract: Welding is an important joining process of industrial fabrication and manufacturing. This review article briefs the materials processing and welding by laser beam with its special characteristics nature. Laser augmented welding process offers main atvantages such as autogenous welding, welding of high thickness, dissimilar welding, hybrid laser welding, optical fibre delivery, remote laser welding, eco-friendly, variety of sources and their wide range of applications are highlighted. Significance of Nd: YAG laser welding and pulsed wave over continuous wave pattern on laser material processesare discussed. Influence of operating parameter of the laser beam for the welding process are briefed including optical fibre delivery and shielding gas during laser welding. Some insight gained in the study of optimization techniques of laser welding parameters to achieve good weld bead geometry and mechanical properties. Significance of laser welding on stainless steels and other materials such as Aluminium, Titanium, Magnesium, copper, etc…are discussed. I. INTRODUCTION Welding is the principal industrial process used for joining metals. As materials continue to be highly engineered in terms of metallic and metallurgical continuity, structural integrity and microstructure, hence, welding processes will become more important and more prominent.
    [Show full text]
  • Numerical Modeling of Laser-Driven Experiments Aiming to Demonstrate Magnetic Field Amplification Via Turbulent Dynamo P
    Numerical modeling of laser-driven experiments aiming to demonstrate magnetic field amplification via turbulent dynamo P. Tzeferacos, A. Rigby, A. Bott, A. R. Bell, R. Bingham, A. Casner, F. Cattaneo, E. M. Churazov, J. Emig, N. Flocke, F. Fiuza, C. B. Forest, J. Foster, C. Graziani, J. Katz, M. Koenig, C.-K. Li, J. Meinecke, R. Petrasso, H.-S. Park, B. A. Remington, J. S. Ross, D. Ryu, D. Ryutov, K. Weide, T. G. White, B. Reville, F. Miniati, A. A. Schekochihin, D. H. Froula, G. Gregori, and D. Q. Lamb Citation: Physics of Plasmas 24, 041404 (2017); doi: 10.1063/1.4978628 View online: https://doi.org/10.1063/1.4978628 View Table of Contents: http://aip.scitation.org/toc/php/24/4 Published by the American Institute of Physics Articles you may be interested in Magnetic field production via the Weibel instability in interpenetrating plasma flows Physics of Plasmas 24, 041410 (2017); 10.1063/1.4982044 Particle acceleration in laser-driven magnetic reconnection Physics of Plasmas 24, 041408 (2017); 10.1063/1.4978627 Formation of high-speed electron jets as the evidence for magnetic reconnection in laser-produced plasma Physics of Plasmas 24, 041406 (2017); 10.1063/1.4978883 On the generation of magnetized collisionless shocks in the large plasma device Physics of Plasmas 24, 041405 (2017); 10.1063/1.4978882 A self-consistent analytical model for the upstream magnetic-field and ion-beam properties in Weibel-mediated collisionless shocks Physics of Plasmas 24, 041409 (2017); 10.1063/1.4979187 Development of an inertial confinement fusion platform to study charged-particle-producing nuclear reactions relevant to nuclear astrophysics Physics of Plasmas 24, 041407 (2017); 10.1063/1.4979186 PHYSICS OF PLASMAS 24, 041404 (2017) Numerical modeling of laser-driven experiments aiming to demonstrate magnetic field amplification via turbulent dynamo P.
    [Show full text]
  • A Review on Selective Laser Sintering/Melting (SLS/SLM) of Aluminium Alloy Powders: Processing, Microstructure, and Properties
    This is a repository copy of A review on selective laser sintering/melting (SLS/SLM) of aluminium alloy powders: Processing, microstructure, and properties. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/90338/ Version: Accepted Version Article: Olakanmi, EO, Cochrane, RF and Dalgarno, KW (2015) A review on selective laser sintering/melting (SLS/SLM) of aluminium alloy powders: Processing, microstructure, and properties. Progress in Materials Science, 74. 401 - 477. ISSN 0079-6425 https://doi.org/10.1016/j.pmatsci.2015.03.002 © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version - refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher’s website. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Number of manuscript folios: One hundred and ninety-two (192) pages.
    [Show full text]