Optical bistable device

Details Optical bistable device Optical bistable device

1983-03-04

1987-06-23

Sikes, William L.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

372 8, 372 50, 357 19, 350 9611, 350 9612, 350 9613, 350 9614, 350331R, 350332, G01J 132

Patent

active

046755187

ABSTRACT:
A bistable optical device integrated onto a semiconductor chip with a photoresponsive element receiving an input light signal and connected electrically to a photo emitting element so that the reverse current produced in the photoresponsive element by the input light signal causes light emission which is incident upon the photoresponsive element to increase reverse current by positive feedback, resulting in change from a low to high light output at a first change value of input light and a high to low output at a second and lower change value. A light modulator is formed between the elements to receive an input light signal and vary the amount of light received by the photoresponsive element from the photo emitting device and hence the change values.

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