Phase-conjugating elements in optical information processing networks

Theo T. Tschudi; Cornelia Denz; Torsten Kobialka

doi:10.1117/12.46850

1 October 1991 Phase-conjugating elements in optical information processing networks (Abstract Only)

Theo T. Tschudi, Cornelia Denz, Torsten Kobialka

Proceedings Volume 1500, Innovative Optics and Phase Conjugate Optics; (1991) https://doi.org/10.1117/12.46850
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

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.

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Theo T. Tschudi, Cornelia Denz, and Torsten Kobialka "Phase-conjugating elements in optical information processing networks (Abstract Only)", Proc. SPIE 1500, Innovative Optics and Phase Conjugate Optics, (1 October 1991); https://doi.org/10.1117/12.46850

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