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Proceedings Paper

Digital holographic recording using spatially resolved multiwavelengths
Author(s): S. Huferath-von Luepke; C. von Kopylow; J. Geldmacher; Th. Kreis
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Paper Abstract

We present a new approach for single shot multi wavelengths contouring using the broad spectrum of a fs-laser. The spectral distribution of a fs-laser contains a multitude of discrete frequencies which principally can be separated and simultaneously used for gathering holograms with different wavelengths. In order to investigate the characteristics of this approach, we have built up a setup using a tuneable dye-laser. Several wavelengths of the dye laser have been spatially distributed for the reference wave on the hologram target. Holograms at different wavelengths are recorded and superimposed numerically afterwards to guarantee resemblance to the fs-laser setup. In this paper we describe the theoretical background, derive an algorithm for noise-reduced reconstruction and show corresponding experimental results.

Paper Details

Date Published: 3 June 2010
PDF: 9 pages
Proc. SPIE 7730, Optical Data Storage 2010, 773005 (3 June 2010); doi: 10.1117/12.859138
Show Author Affiliations
S. Huferath-von Luepke, Bremer Institut für angewandte Strahltechnik (Germany)
C. von Kopylow, Bremer Institut für angewandte Strahltechnik (Germany)
J. Geldmacher, Bremer Institut für angewandte Strahltechnik (Germany)
Th. Kreis, Bremer Institut für angewandte Strahltechnik (Germany)

Published in SPIE Proceedings Vol. 7730:
Optical Data Storage 2010
Susanna Orlic; Ryuichi Katayama, Editor(s)

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