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Proceedings Paper

Application of orthogonal data storage volume holography to optical image correlation
Author(s): Koichi Sayano; George A. Rakuljic; George A. Brost
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Paper Abstract

A compact optical image correlator using orthogonal, wavelength-multiplexed Fourier transform holograms recorded in a photorefractive crystal is demonstrated. Cross-correlation and autocorrelation measurements were obtained using randomly selected test image against the set of reference images stored in the orthogonal data storage volume hologram. Over 20 holograms were recorded in the 645- to 651-nm wavelength range with >2% autocorrelation efficiency and 3-angstrom wavelength separation. A low-power tunable external cavity semiconductor laser was used for readout, further demonstrating the portability of this approach. The translation invariance of the input images was also investigated.

Paper Details

Date Published: 3 June 1994
PDF: 10 pages
Proc. SPIE 2216, Photonics at the Air Force Photonics Center, (3 June 1994); doi: 10.1117/12.177342
Show Author Affiliations
Koichi Sayano, Accuwave Corp. (United States)
George A. Rakuljic, Accuwave Corp. (United States)
George A. Brost, Air Force Photonics Ctr./Rome Lab. (United States)


Published in SPIE Proceedings Vol. 2216:
Photonics at the Air Force Photonics Center
Andrew R. Pirich; Paul Sierak, Editor(s)

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