Programmable optical logic device with complementary inputs

Details Programmable optical logic device with complementary inputs Programmable optical logic device with complementary inputs

1989-04-21

1990-12-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

377102, H01J 3150

Patent

active

049788426

ABSTRACT:
Boolean logic functions are provided in a programmable optical logic device by combining a symmetric self-electrooptic effect device (S-SEED) with a logic control element for optically programming the S-SEED to initiate logic operations from a predetermined state. The predetermined preset state together with subsequent application of optical data signals to the S-SEED permit the desired logic operation to be performed on the optical data signal by the optical logic device. Logic operations which may be programmed into the optical logic device include AND, NAND, OR and NOR functions. A complementary pair (Q and Q) of optical signals is provided as output from each optical logic device.

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