Digital-to-analog optical recorder

Details Digital-to-analog optical recorder Digital-to-analog optical recorder

1979-10-03

1981-03-17

Fears, Terrell W.

Static information storage and retrieval

Radiant energy

Semiconductive

365 45, 307607, 350DIG1, G11C 1300

Patent

active

042571111

ABSTRACT:
A digital-to-analog optical recorder incorporating both CCD and integrated optics technologies which is fabricated as a single integral unit including an electro-optical layer portion and a semiconductor layer portion. Sampling circuits and digital-to-analog converters are implemented on the semiconductor layer portion using CCD technology, and a plurality of optical channel waveguides and electro-optical modulators are implemented on the electro-optical layer portion. Each digital signal is converted into two complementary light spots at the output of the recorder.

REFERENCES:
patent: 4011442 (1977-03-01), Engder
patent: 4081794 (1978-03-01), Parks

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