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Measurement of a Gaussian laser beam diameter through the direct inversion of knife-edge data

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Abstract

An inversion algorithm, involving a linear least-squares method, is developed to analyze the intensity data obtained by application of the traveling knife-edge method. Through use of simulated intensity data, diameters can be measured to an accuracy of 0.05%. The method also yields good results when it is applied to He–Ne laser beam data.

© 1983 Optical Society of America

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