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Proceedings Paper

ISO 11254: an international standard for the determination of the laser-induced damage threshold
Author(s): Juergen Becker; Achim Bernhardt
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Paper Abstract

The International Organization for Standardization has published an International Standard entitled `Test Method for Laser Radiation Induced Damage Threshold of Optical Surfaces'. The testing procedure described herein is based on the damage frequency method. The damage threshold is determined from the linear extrapolation of the measured power-density dependent damage probability. A short description of the testing procedure and its theoretical background will be given. Some critical aspects like the beam diagnostics or the damage detection will be discussed more detailed. Unsolved problems of the testing procedure will be illustrated on the basis of selected examples. The measurements presented were made using a Q-switched Nd:YAG-laser with a nominal pulse duration of 15 ns. More than 500 testing sites were used for every measurement. A scatter-probe monitor was used for the damage detection. Besides a lot of encouraging results, it appeared, that some samples have a damage probability, which does not allow a reasonable extrapolation. Thus, a damage threshold cannot be given. Only in some cases this could be explained by the poor homogeneity of the samples.

Paper Details

Date Published: 28 July 1994
PDF: 11 pages
Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); doi: 10.1117/12.180881
Show Author Affiliations
Juergen Becker, Festkoerper-Laser-Institut Berlin GmbH (Germany)
Achim Bernhardt, Festkoerper-Laser-Institut Berlin GmbH (Germany)

Published in SPIE Proceedings Vol. 2114:
Laser-Induced Damage in Optical Materials: 1993
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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