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Proceedings Paper

Description of diffracted beams by weighted moments
Author(s): Marcus Scholl; S. Muetter; O. Post
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Paper Abstract

Generalized moments for beams with or without diffraction influence are introduced. Their ABCD-transformation laws are shown theoretically as well as experimentally. The generalized moments are defined from the Wigner function with a window function which improves convergence of the moments integrals. The window function is applied in a covariant way so that the ABCD-transformation properties of the moments become evident. The determination of the generalized moments from beam intensity measurements and their behavior in optical systems is shown from numerically simulated data.

Paper Details

Date Published: 20 November 1996
PDF: 11 pages
Proc. SPIE 2870, Third International Workshop on Laser Beam and Optics Characterization, (20 November 1996); doi: 10.1117/12.259888
Show Author Affiliations
Marcus Scholl, Fraunhofer-Institut fuer Lasertechnik (Germany)
S. Muetter, Fraunhofer-Institut fuer Lasertechnik (Germany)
O. Post, Fraunhofer-Institut fuer Lasertechnik (Germany)

Published in SPIE Proceedings Vol. 2870:
Third International Workshop on Laser Beam and Optics Characterization
Michel Morin; Adolf Giesen, Editor(s)

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