This paper presents a direct comparison of the two main techniques for the
determination of laser damage threshold. The two techniques are compared directly to
understand the intrinsic biases of each test and what is causing these biases. The comparison is
done in terms of accuracy and repeatability of the resulting measurements. It will be shown that
under the vast majority of cases the damage frequency method underestimates the true value and
has poor repeatability and that the binary search method over estimates the threshold, but is far
more repeatable.© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.