Results 31 to 40 of about 11,238 (308)

Precision Cutting and Cleaving of Optical Fiber with Femtosecond and CO2 Laser [PDF]

한국정밀공학회지, 2017
In this study, beam divergence through an optical fiber has been controlled through shaping of the optical fiber tip using a CO2 laser, which make the beam divergence smaller than the conventional diamond wheel cleaving method. Precise length cleaving of
Ki-Dong Lim, Hun-Kook Choi, Jin-Tae Kim, Jun-Ki Lee, Ik-Bu Sohn   +4 more
doaj   +1 more source

Efficient beam shaping for high-power laser applications [PDF]

SPIE Proceedings, 2006
AbstractHigh‐power laser sources are used in many applications for material processing, like annealing, welding, soldering, printing and micro‐machining. Additionally, they are widely used as illumination sources for metrology – e.g. LIDAR – and vision systems based on CCD cameras.
Oliver Homburg, Dirk Hauschild, Frank Kubacki, Vitalij Lissotschenko   +3 more
openaire   +1 more source

A Comprehensive Review on Static Laser Beam Shaping: Solution for Welding Challenges in E-Vehicle Battery Manufacturing

Applied Sciences
The increasing demand for reliable and high-performance electric vehicle (EV) batteries requires precise and defect-free welding of battery components.
Zia Uddin, Erica Liverani, Alessandro Ascari, Alessandro Fortunato   +3 more
doaj   +1 more source

Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films

Micromachines, 2014
Thin film ablation with pulsed nanosecond lasers can benefit from the use of beam shaping optics to transform the Gaussian beam profile with a circular footprint into a Top-Hat beam profile with a rectangular footprint.
Stefan Rung, Johannes Barth, Ralf Hellmann   +2 more
doaj   +1 more source

Crack-free manufacture of single weld tracks on aluminum alloy 6013 with the usage of laser beam shaping and oscillation strategies

Journal of Advanced Joining Processes
The present paper investigates the application of laser beam shaping and laser beam oscillations (wobbling) for laser processing of the crack-prone aluminum alloy 6013, used in automotive and aerospace applications.
Thomas Stoll, Maximilian Schmitt, Laura-Marie Müller, Frank Palm   +3 more
doaj   +1 more source

All-optical structuring of laser-driven proton beam profiles

Nature Communications, 2018
Shaping particle beams generated from laser-plasma accelerators is challenging. Here the authors demonstrate an all-optical method to structure the accelerated proton beam by modulating and imprinting the spatial laser profile onto the proton beam.
Lieselotte Obst-Huebl, Tim Ziegler, Florian-Emanuel Brack, João Branco, Michael Bussmann, Thomas E. Cowan, Chandra B. Curry, Frederico Fiuza, Marco Garten, Maxence Gauthier, Sebastian Göde, Siegfried H. Glenzer, Axel Huebl, Arie Irman, Jongjin B. Kim, Thomas Kluge, Stephan D. Kraft, Florian Kroll, Josefine Metzkes-Ng, Richard Pausch, Irene Prencipe, Martin Rehwald, Christian Roedel, Hans-Peter Schlenvoigt, Ulrich Schramm, Karl Zeil   +25 more
doaj   +1 more source

Consideration on the use of design freedoms for resonator originated beam shaping

, 2022
S.69-73A general resonator concept is discussed offering the flexibility of decoupling the mode shape inside and the laser beam outside of the laser resonator. Two examples for the use of the resulting design freedoms for optimization of the laser system
Zeitner, U.D., Wyrowski, F.
core  

Beyond the IFTA – Phase mask generation for 3D laser beam shaping, tailored temperature distributions and optical amplifiers

Journal of the European Optical Society-Rapid Publications
The iterative Fourier transform algorithm (IFTA) is the most widely used algorithm for the generation of phase masks for laser beam shaping in the field of laser material processing. But its simplicity and efficiency also come with heavy limitations.
Hofmann Oskar, Buske Paul, Kurth Robin, Bonhoff Annika, Holly Carlo   +4 more
doaj   +1 more source

Effects of the adjustable ring-mode laser on intermetallic formation and mechanical properties of steel to aluminium laser welded lap joints

Materials & Design, 2023
Research has confirmed a positive effect of laser beam shaping on controlling weld profiles and keyhole stabilisation, with significant reductions of porosity in weldments.
S. Jabar, A. Baghbani Barenji, P. Franciosa, H.R. Kotadia, D. Ceglarek   +4 more
doaj   +1 more source

Monolithic optical components for splitting of high-power beams

, 2022
Paper 84900QHighly efficient beam splitters are important for a variety of high power laser applications. We prove different approaches like aperture and amplitude splitting for practicability for single- and multimode laser sources.
Mitra, T., Ivanenko, M., Fuchs, U., Wächter, C., Jarczynski, M., Kiontke, S., Aschke, L., Linke, T.   +7 more
core   +1 more source