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
Original Manuscript: July 1, 1983
Published: November 1, 1983
John M. Khosrofian and Bruce A. Garetz, "Measurement of a Gaussian laser beam diameter through the direct inversion of knife-edge data," Appl. Opt. 22, 3406-3410 (1983)