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Proceedings Paper

Direct laser beam diagnostics
Author(s): Jan van Gilse; Stanley Koczera; Daniel F. Greby
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Paper Abstract

Increasing use is being made of high-power laser plant to cut, weld, harden, coat and alloy metals. Diagnostic systems analyzing the focused and unfocused laser beam are essential for advanced development and operation of such high-power laser plant. The paper presents various technical options for diagnosing high-power laser beams, with particular attention to a measuring technique which enables focused and unfocused beams to be diagnosed at beam powers of more than 20 kW and intensities of more than 10 7 W/cm2. Laser-beam diagnostics support 3D graphic displays of the laser beam intensity distribution. These graphics indicate the beam position, beam radius and beam intensity. Beam-descriptive parameters such as the M2 quality factor or the Rayleigh length can also be determined.

Paper Details

Date Published: 1 May 1991
PDF: 10 pages
Proc. SPIE 1414, Laser Beam Diagnostics, (1 May 1991); doi: 10.1117/12.43663
Show Author Affiliations
Jan van Gilse, Promotec GmbH (Germany)
Stanley Koczera, Trumpf Industrial Lasers, Inc. (United States)
Daniel F. Greby, Trumpf Industrial Lasers, Inc. (United States)

Published in SPIE Proceedings Vol. 1414:
Laser Beam Diagnostics
Robert N. Hindy; Youssef Kohanzadeh, Editor(s)

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