Focus shift of multimode cw YAG laser beam

Jan Karol Jabczynski; Marek K. Mindak

doi:10.1117/12.56097

1 March 1992 Focus shift of multimode cw YAG laser beam

Jan Karol Jabczynski, Marek K. Mindak

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Optical Engineering, Vol. 31, Issue 3, (March 1992). https://doi.org/10.1117/12.56097

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.

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Jan Karol Jabczynski and Marek K. Mindak "Focus shift of multimode cw YAG laser beam," Optical Engineering 31(3), (1 March 1992). https://doi.org/10.1117/12.56097

Published: 1 March 1992

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