New UV lasers for material processing in industrial applications

1997 ◽  
Author(s):  
Heinrich Endert ◽  
Michael Scaggs ◽  
Dirk Basting ◽  
Uwe Stamm
Keyword(s):  
Material Processing ◽  
Industrial Applications ◽  
Uv Lasers

High Power Density Laser Build-Up Welding with CNC Precision

2009 ◽  
Vol 83-86 ◽  
pp. 1151-1159
Author(s):  
Fouad Cheaitany ◽  
Thomas Peters
Keyword(s):  
Material Processing ◽  
Thermal Loading ◽  
Laser Energy ◽  
Welding Process ◽  
Industrial Applications ◽  
Limited Area ◽  
Laser Material Processing ◽  
Laser Safety ◽  
Safety Issues ◽  
Welding Processes

The use of laser energy in material processing for boring, cutting and welding has been state of the art for many years [1]. The good focussing ability of the laser allows power densities that are hardly possible with conventional welding processes. Thus, the desired component processing can be carried out on a limited area with low overall power where component and material are subjected to minimum thermal loading. The laser build-up welding process which is particularly suited for low distortion applications, as well as materials that are difficult to weld using conventional methods, is explained in detail. Co2 laser, nd:yag laser and diode laser as established beam sources in laser material processing are compared with newer, innovative beam sources like the fiber laser and disk laser that have been developed in the recent years. Where the possible spectrum of use ranges from small parts to large components weighing tons, the need for a universal handling system is discussed together with laser safety issues. Several industrial applications for laser build-up welding are presented.

New ultraviolet lasers for material processing in industrial applications

1999 ◽  
Vol 11 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Heinrich Endert ◽  
Michael Scaggs ◽  
Dirk Basting ◽  
Uwe Stamm
Keyword(s):  
Material Processing ◽  
Industrial Applications ◽  
Ultraviolet Lasers

Femtosecond lasers: the ultimate tool for high-precision 3D manufacturing

2019 ◽  
Vol 8 (3-4) ◽  
pp. 241-251 ◽  
Author(s):  
Linas Jonušauskas ◽  
Dovilė Mackevičiūtė ◽  
Gabrielius Kontenis ◽  
Vytautas Purlys
Keyword(s):  
Material Processing ◽  
High Precision ◽  
Femtosecond Lasers ◽  
Modern Science ◽  
Industrial Applications ◽  
Future Prospects ◽  
Forward Transfer ◽  
Standing Up ◽  
Modern Manufacturing ◽  
Manufacturing Technologies

AbstractThe ever-growing trend of device multifunctionality and miniaturization puts enormous burden on existing manufacturing technologies. The requirements for precision, throughput, and cost become increasingly harder to achieve with minimal room for compromises. Femtosecond lasers, which saw immense development throughout the last few decades, have been proven time and time again to be a superb tool capable of standing up to the challenges posed by modern science and the industry for ultrahigh-precision material processing. Thus, this paper is dedicated to provide an outlook on how femtosecond pulses are revolutionizing modern manufacturing. We will show how they are exploited for various kinds of material processing, including subtractive (ablation, cutting, and etching), additive (lithography and laser-induced forward transfer), or hybrid subtractive-additive cases. The advantages of using femtosecond lasers in such applications, with main focus on how they enable the most precise kinds of material processing, will be highlighted. Future prospects concerning emerging industrial applications and the future of the technology itself will be discussed.

scholarly journals High power ytterbium-doped fiber lasers — fundamentals and applications

2014 ◽  
Vol 28 (12) ◽  
pp. 1442009 ◽  
Author(s):  
Michalis N. Zervas
Keyword(s):  
Material Processing ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Lasers ◽  
Continuous Wave ◽  
Industrial Applications ◽  
Optical Damage ◽  
Fiber Nonlinearities ◽  
Fundamental Properties ◽  
Power Evolution

In this paper, we summarize the fundamental properties and review the latest developments in high power ytterbium-doped fiber (YDF) lasers. The review is focused primarily on the main fiber laser configurations and the related cladding pumping issues. Special attention is placed on pump combination techniques and the parameters that affect the brightness enhancements observed in high power fiber lasers. The review also includes the major limitations imposed by fiber nonlinearities and other parasitic effects, such as optical damage, modal instabilities and photodarkening. The paper summarizes the power evolution in continuous-wave (CW) and pulsed YDF lasers and their impact on material processing and other industrial applications.

DEVELOPMENT OF NEW NLO BORATE CRYSTALS

2001 ◽  
Vol 10 (02) ◽  
pp. 249-263 ◽  
Author(s):  
TAKATOMO SASAKI ◽  
YUSUKE MORI ◽  
MASASHI YOSHIMURA
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Uv Light ◽  
Third Harmonic Generation ◽  
Industrial Applications ◽  
Third Harmonic ◽  
Light Generation ◽  
Uv Lasers

Interests in the use of borate crystals in ultraviolet nonlinear optics have increased because all-solid-state UV lasers obtained with NLO crystals are in highly demand for scientific and industrial applications. Recently, new borate crystals, CsLiB 6 O 10 and Gd x Y 1-x Ca 4 O ( BO 3)3 have been developed by the present authors. CsLiB 6 O 10 is for fourth- and fifth-harmonic generations of Nd:YAG laser, Gd x Y 1-x Ca 4 O ( BO 3)3 for third-harmonic generation. This paper reviews the growth and nonlinear optical properties of these new borate crystals and the progress in UV light generation.

The Clifford Paterson Lecture, 1992 Magentohydrodynamics in material processing

1993 ◽  
Vol 344 (1671) ◽  
pp. 249-263 ◽  
Keyword(s):  
Material Processing ◽  
Magnetic Fields ◽  
New Technologies ◽  
Mechanical Energy ◽  
Industrial Applications ◽  
Rich Source ◽  
Metallic Materials ◽  
Manufacturing Costs

The need to increase quality and decrease manufacturing costs makes innovation in material processing more difficult. Magnetic fields, which can inject thermal or mechanical energy into electroconducting materials, are a very rich source of innovation. Industrial applications of research in magnetohydrodynamics have given rise to new technologies for melting, casting or shaping, not only useful for metallic materials but also for oxides, glasses or ceramics.

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