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Proceedings Paper

In-situ measurement of output coupler absorption using a beam propagation analyzer
Author(s): Michael W. Sasnett; Timothy J. Johnston
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Paper Abstract

Optical characteristics of the output coupler in a high-power CO2 laser can be measured while the optic is in the laser and functioning normally. This is done by using a beam propagation analyzer to measure the rate at which the beam waist location changes with increasing beam power. The characteristics that can be measured with this technique include the fraction of beam power absorbed by the optic and its radius of curvature.

Paper Details

Date Published: 1 February 1994
PDF: 10 pages
Proc. SPIE 2062, Lasers as Tools for Manufacturing, (1 February 1994); doi: 10.1117/12.167595
Show Author Affiliations
Michael W. Sasnett, Coherent, Inc. (United States)
Timothy J. Johnston, Coherent, Inc. (United States)

Published in SPIE Proceedings Vol. 2062:
Lasers as Tools for Manufacturing
Leonard R. Migliore; Richard W. Walker, Editor(s)

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