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Proceedings Paper

Historical perspective of laser beam shaping
Author(s): David L. Shealy
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Paper Abstract

An overview of the history and current practices of laser beam shaping is presented. When diffraction effects are not important, geometrical methods for laser beam shaping (ray tracing, conservation of energy within a bundle of rays, and the constant optical path length condition) can be used to determine system configurations, including aspheric elements and spherical-surface GRIN lenses, which are required to transform an input laser beam profile into a more useful form of illumination. This paper also summarizes applications of these techniques to the optical design of a two-plano-aspheric lens system for shaping a rotationally symmetric Gaussian beam, a two-mirror system with no central obscuration for shaping an elliptical Gaussian input beam, and a three-element spherical surface GRIN system for shaping a rotationally symmetric Gaussian beam.

Paper Details

Date Published: 24 October 2002
PDF: 20 pages
Proc. SPIE 4770, Laser Beam Shaping III, (24 October 2002); doi: 10.1117/12.453505
Show Author Affiliations
David L. Shealy, Univ. of Alabama at Birmingham (United States)

Published in SPIE Proceedings Vol. 4770:
Laser Beam Shaping III
Fred M. Dickey; Scott C. Holswade; David L. Shealy, Editor(s)

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