INTEGRATED ELECTRO-OPTIC ARITHMETIC/LOGIC UNIT AND METHOD FOR MAKING THE SAME

An integrated electro-optic arithmetic/logic apparatus has an optical substrate and an electrically active substrate. Optical waveguides are provided on the surface of the optical; substrate, while active devices such as detectors, threshold circuits and sources are formed in the electrically active substrate. The two substrates are integrated to form a single chip device. Intersecting regions of the optical waveguides are monitored by the detectors and threshold circuits to provide output signals corresponding to a desired arithmetic/logic operation.