2013 High Power Diode Lasers And Systems Conference Hpd
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2013 High Power Diode Lasers And Systems Conference Hpd
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2013-10-16
2013 High Power Diode Lasers And Systems Conference Hpd written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-16 with categories.
Advances in diode lasers continue unabated as the range of applications increases Advances in diode pump lasers have also contributed to advances in solid state and fiber lasers Topics will include Advances in diode pumped solid state lasers, Beam combining approaches, Developments in diode pumped fiber lasers, Industrial lasers for cutting welding, Laser diodes optimized for external cavity operation, Volume manufacturing of laser diode systems, High power diode laser applicatons
2017 Ieee High Power Diode Lasers And Systems Conference Hpd
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2017-10-11
2017 Ieee High Power Diode Lasers And Systems Conference Hpd written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-11 with categories.
This conference is the premier annual event addressing the latest advances in diode and diode pumped laser technology and systems applications The conference covers laser pump diodes diode pumped solid state and fibre lasers applications of diode laser technology in consumer products, processing, healthcare and biophotonics, defense and security
2015 Ieee High Power Diode Lasers And Systems Conference Hpd
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2015-10-14
2015 Ieee High Power Diode Lasers And Systems Conference Hpd written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-14 with categories.
This conference is the premier annual event addressing the latest advances in diode and diode pumped laser technology and systems applications The conference covers laser pump diodes diode pumped solid state and fibre lasers applications of diode laser technology in consumer products, processing, healthcare and biophotonics, defence and security
2019 Ieee High Power Diode Lasers And Systems Conference Hpd
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2019-10-09
2019 Ieee High Power Diode Lasers And Systems Conference Hpd written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-09 with categories.
This conference is the premier biannual event addressing the latest advances in diode and diode pumped laser technology and systems applications The conference covers laser pump diodes diode pumped solid state and fibre lasers applications of diode laser technology in consumer products, processing, healthcare and biophotonics, defence and security
Broad Area Laser Bars For 1 Kw Emission
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Author : Matthias M. Karow
language : en
Publisher: Cuvillier Verlag
Release Date : 2022-06-27
Broad Area Laser Bars For 1 Kw Emission written by Matthias M. Karow and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-27 with Technology & Engineering categories.
ndustrial laser systems for material processing applications rely on the availability of highly efficient, high-brightness diode lasers. GaAs-based broad-area laser bars play a vital role in such applications as pump sources for high-beam-quality solid-state lasers and, increasingly, as direct processing tools. This work studies 940 nm-laser bars emitting 1 kW optical power at room temperature, identifying those physical mechanisms that are currently limiting electrical-to-optical conversion efficiency as well as lateral beam quality. In the process, several diagnostic studies on bars with varied lateral-longitudinal design were carried out. The effects of technological measures for performance optimization were analyzed, yielding a new benchmark in efficiency and lateral divergence. The studies into altered resonator lengths of 4 and 6 mm as well as fill factors between 69 and 87 % successfully reduce both the voltage dropping across the device and power saturation at high currents, enabling 66 % efficiency at the operation point. Concrete measures how to reach efficiencies ≥70 % are presented thereafter, showing that doubling the efficiency value of the first 1 kW-demonstration in 2007 – amounting to 35 % – is in near reach. Investigation of the beam quality bases on a herein proposed and realized concept, in which the far field is resolved for each individual bar emitter. In this way, it is possible to determine how far-field profiles vary along the bar width and how much these variations affect the overall bar far-field. Further, such effects specific to bar structures can be separated into non-thermal and thermal influences. The effect of mechanical chip deformation (bar smile) as well as neighboring-emitter interaction has been investigated for the first time in active kW-class devices, yielding a lateral divergence as low as 8.8° at the operation point.
Advanced Laser Diode Reliability
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Author : Massimo Vanzi
language : en
Publisher: Elsevier
Release Date : 2021-07-24
Advanced Laser Diode Reliability written by Massimo Vanzi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-24 with Technology & Engineering categories.
Advanced Laser Diode Reliability focuses on causes and effects of degradations of state-of-the-art semiconductor laser diodes. It aims to provide a tool for linking practical measurements to physical diagnostics. To this purpose, it reviews the current technologies, addressing their peculiar details that can promote specific failure mechanisms. Two sections will support this kernel: a) Failure Analysis techniques, procedures and examples; b) Device-oriented laser modelling and parameter extraction. Talk about Natural continuity with the most widespread existing textbooks, published by Mitsuo Fukuda Present the extension to new failure mechanisms, new technologies, new application fields, new environments Introduce a specific self-consistent model for the physical description of a laser diode, expressed in terms of practically measurable quantities
High Power Diode Lasers
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Author : Friedrich Bachmann
language : en
Publisher: Springer
Release Date : 2010-11-29
High Power Diode Lasers written by Friedrich Bachmann and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-29 with Science categories.
This book summarizes a five year research project, as well as subsequent results regarding high power diode laser systems and their application in materials processing. The text explores the entire chain of technology, from the semiconductor technology, through cooling mounting and assembly, beam shaping and system technology, to applications in the processing of such materials as metals and polymers. Includes theoretical models, a range of important parameters and practical tips.
High Power Laser Handbook
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Author : Hagop Injeyan
language : en
Publisher: McGraw Hill Professional
Release Date : 2011-01-05
High Power Laser Handbook written by Hagop Injeyan and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-05 with Technology & Engineering categories.
The State of the Art in High-Power Laser Technology Filled with full-color images, High-Power Laser Handbook offers comprehensive details on the latest advances in high-power laser development and applications. Performance parameters for each major class of lasers are described. The book covers high-power gas, chemical, and free-electron lasers and then discusses semiconductor diode lasers, along with the associated technologies of packaging, reliability, and beam shaping and delivery. Current research and development in solid-state lasers is described as well as scaling approaches for high CW powers, high pulse energies, and high peak powers. This authoritative work also addresses the emergence of fiber lasers and concludes by reviewing various methods for beam combining. Coverage Includes: Carbon dioxide lasers Excimer lasers Chemical lasers High-power free-electron lasers Semiconductor laser diodes High-power diode laser arrays Introduction to high-power solid-state lasers Zig-zag slab lasers ThinZag high-power laser development Thin disk lasers Heat capacity lasers Ultrafast solid-state lasers Ultrafast lasers in the thin disk geometry The National Ignition Facility laser Optical fiber lasers Pulsed fiber lasers High-power ultrafast fiber laser systems High-power fiber lasers for industry and defense Beam combining
2009 High Power Diode Laser And Systems Conference
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2009
2009 High Power Diode Laser And Systems Conference written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Untersuchungen An Weich Schaltenden Dc Dc Konvertern Zur Versorgung Von Hochleistungs Diodenlasern
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Author : Winkler, Tammo
language : de
Publisher: Universitätsverlag der TU Berlin
Release Date : 2019-09-16
Untersuchungen An Weich Schaltenden Dc Dc Konvertern Zur Versorgung Von Hochleistungs Diodenlasern written by Winkler, Tammo and has been published by Universitätsverlag der TU Berlin this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-16 with Technology & Engineering categories.
Durch die Steigerung der Dynamik von Laser-Materialbearbeitungsprozessen mittels Diodenlasern wächst der Bedarf an hochdynamischen Stromquellen, mit denen die Emitter betrieben werden können. Dabei nehmen mannigfaltige Randbedingungen Einfluss auf den grundlegenden Systemaufbau der stromgeregelten leistungselektronischen Systeme. Es wird das industrielle Einsatzgebiet der Stromquellen beschrieben. Verschiedene gebräuchliche Konvertertopologien des gegenwärtigen Standes der Technik werden hinsichtlich der Eignung für den Einsatz in diesem Umfeld untersucht. Mit Hilfe von Simulationen werden die verschiedenen Stromrichterkonzepte verglichen sowie deren Vor- und Nachteile analysiert. Die gewonnenen Resultate werden verwendet, um Optimierungsmöglichkeiten zu finden, mit denen den mit dem Einsatzzweck gegebenen Randbedingungen Rechnung getragen werden kann. Es werden moderne SiC MOSFETs hinsichtlich der Eignung für den Einsatz in weich schaltenden DC/DC Konvertern untersucht. Anhand von experimentellen Untersuchungen wird erläutert, inwiefern durch den Einsatz dieser Bauteile eine Verbesserung der Werte kritischer Parameter wie der Effizienz und des Gewichts bei gleichzeitig hoher Dynamik des Ausgangsstroms erzielt werden kann. Zudem wird ein experimenteller Vergleich der Schaltverluste von SiC MOSFETs und herkömmlichen Si-Bauelementen angestellt. Eine neuartige Konvertertopologie wird vorgestellt, die Eigenschaften des Vollbrückengegentaktwandlers und des Halbbrückengegentaktwandlers miteinander vereint. Es wird gezeigt, dass diese Schaltung vorteilhaft in hocheffizienten Diodenlaseranwendungen eingesetzt werden kann. Eine experimentelle Verifikation der Topologie und ein Vergleich mit anderen Konzepten wird durchgeführt. Due to the more dynamic processes used in laser-material machining done with diode-lasers, there is a growing demand on highly dynamic current sources, with which the laser emitters can be driven. Thereby, manifold boundary conditions influence the basic system-design of the current-controlled power-electronic systems. The industrial field of application is characterized. Different commonly used topologies of the actual state of the art are analyzed in terms of usability in this field. With the aid of simulations, the different converter concepts are compared and analyzed regarding the advantages and disadvantages. The results are used to find possible ways of optimization, which take the boundary conditions defined by the field of application into account. Modern SiC MOSFETs are tested for use in soft switching DC/DC-Converters. Based on experiments, the possible enhancements of the values of critical parameters, e.g. efficiency or the weight, within systems of highly dynamic output current are discussed. An experimental comparison of the switching losses of SiC MOSFETs and conventional Si devices is done. A new converter topology is presented, which combines advantages of the Full-Bridge Converter and the Half Bridge-Converter. The usability in highly efficient diode laser systems is shown, an experimental verification is done and a comparison with conventional concepts is depicted.