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Proceedings Paper

Information processing with spatially coherent light
Author(s): Adolf W. Lohmann; David Mendlovic; Gal Shabtay
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Paper Abstract

Coherent light is the most popular carrier of a signal in an optical information processing system. The matched filtering system (Van Der Lugt 1965) is a prominent example. However, coherent optics is experimentally delicate, not well suited for unfriendly environments. As a reaction to this dilemma some new systems, that use totally incoherent light, have been presented recently. Those systems work reasonably well. But they can handle only real-valued non-negative signals, directly. An alternative approach is to use partially- coherent light. Now the optical system is not anymore as fragile as a coherent system. And the signals, which are now implemented as coherence functions, can be complex, in contrast to incoherent optics. However, the hardware of partially coherent systems is more elaborate.

Paper Details

Date Published: 24 May 2000
PDF: 2 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386807
Show Author Affiliations
Adolf W. Lohmann, Univ. Erlangen-Nuernberg (Germany)
David Mendlovic, Tel Aviv Univ. (Israel)
Gal Shabtay, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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