Beam-by-beam Kerr clean-up in multimode optical fibres – INVITED [PDF]
EPJ Web of Conferences, 2023 We propose and demonstrate the concept of beam-by-beam cleaning in multimode optical fibres, i.e., the increase of the spatial quality of an intense laser beam, induced by a relatively weak, quasi singlemode seed beam.
Ferraro Mario +10 more
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PRELIMINARY QUALITY ANALYSIS OF GF-7 SATELLITE LASER ALTIMETER FULL WAVEFORM DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The full-waveform data is the core data of GaoFen-7 (GF-7) satellite laser altimeter, and evaluation of waveform data quality is an important step and premise for satellite laser altimetry and quality control.
G. Li +12 more
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Wigner transform approach to dynamic-variable partially coherent laser beam characterization [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 1) Background: the modeling, characterization, transformation and propagation of high-power CW laser beams in optical (including fiberoptic) trains and in the atmosphere have become hot topics in laser science and engineering in the past few years ...
J. Jabczyński, P. Gontar, Ł. Gorajek
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Characterization of beam quality of unstable laser beams with the multiple hyperbolas method
Results in Physics, 2019 In this paper, the multiple hyperbolas method is proposed for characterizing the beam quality of unstable laser beams. Based on the traditional beam quality analyzer equipment, the proposed method captures multiple intensity images at every measurement ...
Lingqiang Meng +5 more
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Process variation in Selective Laser Melting of Ti-6Al-4V alloy [PDF]
MATEC Web of Conferences, 2020 The present work explores the variation in Ti-6Al-4V part quality introduced by the key process operations of Selective Laser Melting (SLM) process, the recoating, the gas flow, and the laser beam irradiation.
Chen Zhuoer +5 more
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Beam Control in an Intracavity Frequency-Doubling Semiconductor Disk Laser
Applied Sciences, 2019 In this paper, we have demonstrated a 1.3 W green laser using a V-shaped intracavity frequency doubling 1036 nm semiconductor disk laser. The beam quality of the fundamental and second harmonic generation (SHG) laser is investigated.
Guanyu Hou +9 more
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Gaussian content as a laser beam quality parameter [PDF]
Applied Optics, 2011 18 pages, 5 ...
Ruschin, Shlomo +2 more
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Generalized beam quality factor of aberrated truncated Gaussian laser beams [PDF]
Journal of the Optical Society of America A, 2011 We outline a theory for the calculation of the beam quality factor of an aberrated laser beam. We provide closed-form equations that show that the beam quality factor of an aberrated Gaussian beam depends on all primary aberrations except tilt, defocus, and x-astigmatism.
Cosmas, Mafusire, Andrew, Forbes
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Optimization of electron bunch quality using a chirped laser pulse in laser wakefield acceleration
Physical Review Accelerators and Beams, 2021 In this work, we perform particle-in-cell simulations to investigate the electron bunch quality using a chirped laser pulse in a laser wakefield acceleration mechanism.
Arohi Jain, Devki Nandan Gupta
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High quality beam produced by tightly focused laser driven wakefield accelerators
Physical Review Accelerators and Beams, 2023 We propose to use tightly focused lasers to generate high quality electron beams in laser wakefield accelerators. In this scheme, the expansion of the laser beam after the focal position enlarges the size of wakefield bubble, which reduces the effective ...
Jia Wang +4 more
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