Journal•ISSN: 0030-3992
Optics and Laser Technology
About: Optics and Laser Technology is an academic journal. The journal publishes majorly in the area(s): Laser & Laser power scaling. It has an ISSN identifier of 0030-3992. Over the lifetime, 8470 publication(s) have been published receiving 103332 citation(s).
Topics: Laser, Laser power scaling, Fiber laser, Welding, Interferometry
Papers published on a yearly basis
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TL;DR: The results of experimental investigations into erbium glass lasers and their likely applications are discussed in this paper, where regularities of the inversion energy accumulation, also as channels of energy losses, are covered in detail.
Abstract: In this paper results of experimental investigations into erbium glass lasers and their likely applications are discussed. Regularities of the inversion energy accumulation, also as channels of energy losses, are covered in detail. Different erbium lasers, both flashtube and neodymium laser-pumped, are compared. Parameters of some erbium laser glasses are presented, including the new LGS-E7, which requires a smaller pumping energy density (less than 100–200 J cm-2). Test data from experimental models are summarized.
329 citations
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TL;DR: In this paper, a brief review is given regarding ultrafast laser micromachining of materials and some general experimental observations are first provided to show the characteristics of ultrafast LMMM.
Abstract: A brief review is given regarding ultrafast laser micromachining of materials. Some general experimental observations are first provided to show the characteristics of ultrafast laser micromachining. Apart from empirical research, mathematical models also appear to allow for a further and systematic understanding of these phenomena. A few fundamental ultrafast laser micromachining mechanisms are addressed in an attempt to highlight the physics behind the experimental observations and the mathematical models. It is supposed that a vivid view of ultrafast laser micromachining has been presented by linking experimental observations, mathematical models and the behind physics.
249 citations
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TL;DR: In this article, the authors performed an experimental investigation and a successive statistical optimization of the parameters of the selective laser melting process of the 18Ni300 maraging steel and found that the best part properties were produced with the laser power bigger than 90 W and the velocity smaller than 220 mm/s.
Abstract: Selective Laser Melting (SLM) is an Additive Manufacturing process (AM) that built parts from powder using a layer-by-layer deposition technique. The control of the parameters that influence the melting and the amount of energy density involved in the process is paramount in order to get valuable parts. The objective of this paper is to perform an experimental investigation and a successive statistical optimization of the parameters of the selective laser melting process of the 18Ni300 maraging steel. The experimental investigation involved the study of the microstructure, the mechanical and surface properties of the laser maraging powder. The outcomes of experimental study demonstrated that the hardness, the mechanical strength and the surface roughness correlated positively to the part density. Parts with relative density higher than 99% had a very low porosity that presented closed and regular shaped pores. The statistical optimization determined that the best part properties were produced with the laser power bigger than 90 W and the velocity smaller than 220 mm/s.
248 citations