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Optical Engineering

Focus shift of multimode cw YAG laser beam
Author(s): Jan Karol Jabczynski; Marek K. Mindak
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Paper Abstract

Changes of output beam parameters due to the pumping power level of a high-power cw YAG laser and the resulting focus shift have been investigated theoretically and experimentally. The effect of thermal focusing on the resonator parameters is compared with measurements of the output multimode beam properties. Theoretical results of focus shift analysis, verified experimentally, make it possible to determine the best coupling conditions of such a laser beam with an optical fiber for a wide range of pump levels.

Paper Details

Date Published: 1 March 1992
PDF: 6 pages
Opt. Eng. 31(3) doi: 10.1117/12.56097
Published in: Optical Engineering Volume 31, Issue 3
Show Author Affiliations
Marek K. Mindak

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