Opto-electronic correlator including a spiral light waveguide

Details Opto-electronic correlator including a spiral light waveguide Opto-electronic correlator including a spiral light waveguide

1990-12-12

1992-04-28

Lee, John D.

Optical waveguides

With optical coupler

Plural

385 39, 385 48, 385132, G02B 610

Patent

active

051094460

ABSTRACT:
A device for recognizing useful signals, transmitted over a distance and comprising noisy electromagnetic, light signals containing information. A tapped delay line is used for this purpose, whereby a waveguide is manufactured in a spiral groove of a wafer using microtechnology, in order to form a planar light waveguide coil on a chip.

REFERENCES:
patent: 3406358 (1968-10-01), Seidel et al.
patent: 3743962 (1973-07-01), Rosenberg
patent: 4068952 (1978-01-01), Erbert et al.
patent: 4918373 (1990-04-01), Newberg
patent: 4984863 (1991-01-01), Parriaux et al.

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