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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Digital data flow control based on the photon echo phenomenon

Sergey M. Zakharov, Eduard A. Manykin

Published May 10, 1996• 0 citations
Publisher

Abstract

Principles for optical digital data processing based on photon echo phenomenon in resonant media are considered. The various schemes of optical processors realization with the pixel structure and of holographic type based on using the digital multiplication by the analog convolution algorithm is suggested. Methods of optical data flow control of digital informational on the basis of photon echo phenomenon are discussed. Interconnections' switching schemes in a sequential in time and parallel in space codes are suggested.

DOI
10.1117/12.239464

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Principles for optical digital data processing based on photon echo phenomenon in resonant media are considered. The various schemes of optical processors realization with the pixel structure and of holographic type based on using the digital multiplication by the analog convolution algorithm is suggested. Methods of optical data flow control of digital informational on the basis of photon echo phenomenon are discussed. Interconnections' switching schemes in a sequential in time and parallel in space codes are suggested.
Principles for analog and digital optical processing based on the two- pulse photon echo (PE) phenomenon are considered. Various architecture designs of optical pattern recognition systems and optical processors for analog and digital processing are discussed. Also various schemes of digital processors for vector-matrix multiplication with the pixel structure and of holographic type are suggested. These realizations depend on using of digital temporal or spatial mixed binary multiplication based on the PE.
Principles and schemes of optical information processing, transmission and storage based on the ultra-short laser impulses' interaction with doped rare-earth ions' crystals are considered. Nonlinear optical effect as a photon echo is discussed. This effect is widely used for the investigation of kinetic processing involving the relaxation of elementary excitations in solids. Possibility of parallel processing of large data arrays in the form of two and three dimensional images and flexibility in controlling data flows are represented. ARchitecture of the various photon echo digital operation, including laser digital vector and matrix-vector multiplication are analyzed. Advantages of optical coherent phenomena for quantum computing are discussed.
The photon echo application for optical digital processing of discrete images by the method of managing operators was examined. Photon echo is the pulse of light which is emitted spontaneously from a system of atoms previously irradiated by two or more coherent light pulses with length and power of 102divided by10-1 ps and 104divided by105 kW, respectively. These systems of resonant atoms are crystals with various paramagnetic activators. By using photon echo, the resonant systems are able to store and retrieve wave-front and temporal form of one of the excitation pulses. The photon echo application for information processing allows one to solve a number of problems with high efficiency. Different photon echo generating conditions can be utilized practically in all processor components, which creates certain prospects for using this effect in optical computing purposes.