Optical logic elements

Details Optical logic elements Optical logic elements

1975-09-22

1976-11-30

Corbin, John K.

350 96WG, G02B 514

Patent

active

039953114

ABSTRACT:
Two light paths are disposed to induce resonant coupling of light energy from one path to the other. Electrodes connected to an electrical source are positioned relative to the two light paths and to develop electric fields which inhibit the resonant coupling from one light path to the other. A photoconductive region is positioned in one of the two light paths or in an additional third light path so that transmission of light energy through the photoconductive material produces a lowered resistance path between the electrodes, substantially diminishing the potential across the electrodes, and causing commensurate dimunition of the electric fields so that resonant coupling is inhibited between the resonantly coupled optical paths. Three light paths may be employed to provide an optical AND gate while two light paths can be arranged to provide an optical OR gate.

REFERENCES:
patent: 3909108 (1975-09-01), Taylor
Taylor, "Optical-Waveguide connecting Networks" Electronics Letters, vol. , No. 4, pp. 41-43, Feb. 1974.

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