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Proceedings Paper

Phase-conjugating elements in optical information processing networks
Author(s): Theo T. Tschudi; Cornelia Denz; Torsten Kobialka
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Paper Abstract

In parallel optical information processing systems, three important specifications have to be fulfilled: (1) high space bandwidth product, (2) amplification for signal restoring, and (3) compensation for aberrations. The authors present a coherent optical feedback system which is capable of processing a large number of channels entirely in parallel. The system consists of a ring-resonator with a phase-conjugating mirror (PCM), formed by a BaTiO3-crystal, as an image amplifier. The aberration compensating property of optical phase-conjugation makes it possible to realize a feedback system with a space-bandwidth product up to >105, which would hardly be achievable otherwise. In addition, PCM-devices can be also used for the realization of different operations, such as phase visualization, coupling of channels, and image storage.

Paper Details

Date Published: 1 October 1991
PDF: 1 pages
Proc. SPIE 1500, Innovative Optics and Phase Conjugate Optics, (1 October 1991); doi: 10.1117/12.46850
Show Author Affiliations
Theo T. Tschudi, Technische Hochschule Darmstadt (Germany)
Cornelia Denz, Technische Hochschule Darmstadt (Germany)
Torsten Kobialka, Technische Hochschule Darmstadt (Germany)


Published in SPIE Proceedings Vol. 1500:
Innovative Optics and Phase Conjugate Optics
Rolf-Juergen Ahlers; Theo T. Tschudi, Editor(s)

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