During welding of glass with ultrafast lasers, an irregularformation of weld seams was prevented by modulation of the average laserpower and spatial beam shaping. The formation of individual molten volumesin regular intervals was achieved by means of power modulation, resultingin a predictable and reproducible weld seam with a regular structure. Atconstant average power, a homogeneous weld seam without a periodicsignature was alternatively achieved by means of a shaped beam generatingan elongated interaction volume and resulting in a continuous melting ofthe material. The influence of the two approaches, and their combination onthe process dynamics, was analyzed by means of high-speed videos of theplasma emission and of the formation of the seams.
%0 Journal Article
%1 Hecker:20
%A Hecker, Sebastian
%A Blothe, Markus
%A Graf, Thomas
%D 2020
%I OSA
%J Appl. Opt.
%K glass laser laser_weldingsend:unibiblio myown peer welding
%N 36
%P 11382-11388
%R 10.1364/AO.411667
%T Reproducible process regimes during glass welding by bursts ofsubpicosecond laser pulses
%U http://ao.osa.org/abstract.cfm?URI=ao-59-36-11382
%V 59
%X During welding of glass with ultrafast lasers, an irregularformation of weld seams was prevented by modulation of the average laserpower and spatial beam shaping. The formation of individual molten volumesin regular intervals was achieved by means of power modulation, resultingin a predictable and reproducible weld seam with a regular structure. Atconstant average power, a homogeneous weld seam without a periodicsignature was alternatively achieved by means of a shaped beam generatingan elongated interaction volume and resulting in a continuous melting ofthe material. The influence of the two approaches, and their combination onthe process dynamics, was analyzed by means of high-speed videos of theplasma emission and of the formation of the seams.
@article{Hecker:20,
abstract = {During welding of glass with ultrafast lasers, an irregularformation of weld seams was prevented by modulation of the average laserpower and spatial beam shaping. The formation of individual molten volumesin regular intervals was achieved by means of power modulation, resultingin a predictable and reproducible weld seam with a regular structure. Atconstant average power, a homogeneous weld seam without a periodicsignature was alternatively achieved by means of a shaped beam generatingan elongated interaction volume and resulting in a continuous melting ofthe material. The influence of the two approaches, and their combination onthe process dynamics, was analyzed by means of high-speed videos of theplasma emission and of the formation of the seams.},
added-at = {2020-12-17T08:05:08.000+0100},
author = {Hecker, Sebastian and Blothe, Markus and Graf, Thomas},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/24abd23e6387c1f5570df2862bbfe34ea/thomas_graf},
doi = {10.1364/AO.411667},
interhash = {3d95033c18310f9c7a583fdaa3d45b72},
intrahash = {4abd23e6387c1f5570df2862bbfe34ea},
journal = {Appl. Opt.},
keywords = {glass laser laser_weldingsend:unibiblio myown peer welding},
month = dec,
number = 36,
pages = {11382-11388},
publisher = {OSA},
timestamp = {2020-12-17T07:05:08.000+0100},
title = {Reproducible process regimes during glass welding by bursts ofsubpicosecond laser pulses},
url = {http://ao.osa.org/abstract.cfm?URI=ao-59-36-11382},
volume = 59,
year = 2020
}
