Logic self-electrooptic effect devices: quantum-well optoelectronicmultiport logic gates, multiplexers, demultiplexers, and shift registers |
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Authors: | Lentine AL Tooley FAP Walker SL McCormick FB Jr Morrison RL Chirovsky LMF Focht MW Freund JM Guth GD Leibenguth RE Przybylek GJ Smith LE D'Asaro LA Miller DAB |
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Affiliation: | AT&T Bell Lab., Naperville, IL; |
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Abstract: | Two-dimensional arrays of logic self-electrooptic effect devices (L-SEEDs), consisting of electrically connected quantum-well p-i-n diode detectors and modulators are demonstrated. The topology of the electrical connections between the detectors is equivalent to the connections between transistors in CMOS circuits. Three different L-SEED arrays were built and tested. Each element in one array can implement any of the four basic Boolean logic functions (i.e., NOR, NAND, AND, OR). Each element in the second L-SEED array can implement the function E=AB+CD. The third L-SEED array consists of 32×16 arrays of symmetric SEEDs (S-SEEDs) connected with optoelectronic transmission gates. Photonic switching nodes, multiplexers, demultiplexers, and shift registers have been demonstrated using this array |
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