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Proceedings Paper

Optical design and testing of a holographic projection system
Author(s): Wu Jiang; David L. Shealy; Kenneth M. Baker
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Paper Abstract

Design and preliminary results of a prototype laser projection system are presented. This system consists of a HeCd laser, an expansion system, a laser beam profile reshaping system, and a holographic diffraction grating which divides the amplitude of a laser into four coherent beams. These four beams are then recombined together to generate an interferometric pattern on a photosensitive substrate. In this paper, the particular significance of the reshaper with respective enhancement of system performance will be addressed. Since most laser beam irradiance profiles do not have a uniform distribution of light intensity across its diameter, the interference pattern will have the maximum intensity at the center and will trail off at the edges if a Gaussian beam profile is utilized. In order to correct this problem, a two plano- aspherical lens system has been designed and fabricated. This system converts the Gaussian beam into a uniform profile beam without truncating the laser beam. Experimental results will be given and discussed.

Paper Details

Date Published: 17 June 1994
PDF: 9 pages
Proc. SPIE 2152, Diffractive and Holographic Optics Technology, (17 June 1994); doi: 10.1117/12.178077
Show Author Affiliations
Wu Jiang, Univ. of Alabama/Birmingham (United States)
David L. Shealy, Univ. of Alabama/Birmingham (United States)
Kenneth M. Baker, Optimerix Co. (United States)

Published in SPIE Proceedings Vol. 2152:
Diffractive and Holographic Optics Technology
Ivan Cindrich; Sing H. Lee, Editor(s)

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