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Proceedings Paper

Optical Feedback By Four Wave Mixing In Optical Processing Systems
Author(s): Xinbing Liu; Jian Wang; Jianquan Yao
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Paper Abstract

The advantage of optical signal processing and computing is mainly due to its two-dimensional complex computing ability with the fastest speed. Of computation algorithms, quite a few are iterative or recursive, such as vector or matrix multiplication over a given matrix for many times, and the computation of derivatives of much high order, etc. These algorithms are also suitable for optical computing . To perform iterative algorithms, the output from a computation step reenters the system as the input for the next step, therefore a feedback loop is needed. Many optical signal processing systems have spatial light modulators that are electrically addressed, and the photon-to-electron and electron-to-photon conversions reduce the processing speed and increase the system complexity. In this paper we propose an all-optical signal processing system for performing the iterative algorithms by using a four wave mixing material which introduces a feedback loop in the system. We believe that this system may also be used as an optical two-dimensional dynamic memory device.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967175
Show Author Affiliations
Xinbing Liu, Nankai Univ. (China)
Jian Wang, Tianjin Univ. (China)
Jianquan Yao, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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