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Proceedings Paper

The interaction performance of white light, laser diode, and He-Ne laser with two wavefront sensing systems
Author(s): Z. W. Zhong; L. P. Zhao; A. A. Hein
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Paper Abstract

In this study, the interaction performance of three light sources, namely white light, laser diode and He-Ne laser, with two wave-front sensing systems was investigated experimentally using different sensing distances and sampling apertures (two hole-apertures for a Hartmann system and a spatial-light-modulator lenslet-array for a digital Shack-Hartmann system). It was found that the white light source was the best for the Hartmann system, while the He-Ne laser was the most suitable light source for the digital Shack-Hartmann system. Geometrical accuracy of a hole-array aperture and the sensing distance are important to generate stable wave fronts.

Paper Details

Date Published: 3 October 2008
PDF: 10 pages
Proc. SPIE 7155, Ninth International Symposium on Laser Metrology, 71552X (3 October 2008); doi: 10.1117/12.814607
Show Author Affiliations
Z. W. Zhong, Nanyang Technological Univ. (Singapore)
L. P. Zhao, Singapore Institute of Manufacturing Technology (Singapore)
A. A. Hein, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 7155:
Ninth International Symposium on Laser Metrology
Chenggen Quan; Anand Asundi, Editor(s)

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