Parallel data processing system

Details Parallel data processing system Parallel data processing system

1976-05-03

1978-02-14

Stern, Ronald J.

Boots, shoes, and leggings

331 945C, 350 360, 364837, 364900, G06G 900, G03H 100, H01S 3101

Patent

active

040743616

ABSTRACT:
An optical parallel computing system in which modes of a multi-mode laser are coupled holographically. The bistable state of oscillation of individual modes is controlled by a saturable absorber placed in a part of the laser cavity which permits the control of each mode separately. A mode oscillates on the condition that the amount of optical energy coupled into that mode exceeds a threshold value. The amount of coupling between pairs of modes is dependent on the input data which is presented as a hologram. The output is read from the selection of modes which oscillate. The holographic part of the data processing system is a coherent optical computer which evaluates linear or nonlinear polynomial operators on the input data and can inject a proportional amount of energy into a mode, which then oscillates if the value of the operator exceeds a threshold. Holograms in the coherent optical computer store both data and program for the computing system. Applications include image processing and pattern recognition.

REFERENCES:
patent: 3431437 (1969-03-01), Kosonocky
patent: 3439289 (1969-04-01), Kosonocky

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