Monolithic optical emitter-detector

Radiant energy – Photocells; circuits and apparatus – Signal isolator

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2502141, 257 84, G01B 2700

Patent

active

057539286

ABSTRACT:
Optical feedback control in an optical emitter-detector combination can be improved by fabricating the two devices on a single substrate. The feedback radiation can then travel within a monolithic structure. This arrangement will yield greater uniformity in devices as well as provide for easier mechanical assembly.

REFERENCES:
patent: 3582661 (1971-06-01), Pijls
patent: 3699407 (1972-10-01), Gurtler
patent: 4190747 (1980-02-01), Feiner et al.
patent: 4221485 (1980-09-01), Schulze
patent: 4275404 (1981-06-01), Cassiday et al.
patent: 4588896 (1986-05-01), Abbas
patent: 4667212 (1987-05-01), Nakamura
patent: 4970381 (1990-11-01), Huang et al.
patent: 5247168 (1993-09-01), Pocholle et al.
patent: 5256882 (1993-10-01), Miyasaka
"A Ga.sub.1-x A1.sub.x As Monolithic Opto-Isolator" by R.J. Roedel et al., IEEE Electron Device Letters, vol. EDL-1, Nos. 2, Feb. 1980, pp. 15-17.

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