N-nary optical semiconductor transistor and an optical AND-gate

Details N-nary optical semiconductor transistor and an optical AND-gate N-nary optical semiconductor transistor and an optical AND-gate

2009-05-05

2010-11-09

Tran, Tan N (Department: 2826)

Optical waveguides

Integrated optical circuit

C359S107000, C359S108000, C257S431000

Reexamination Certificate

active

07831117

ABSTRACT:
An N-nary photonic transistor (PT) based on a heterojunction optical semiconductor microstructure is presented. The PT has one control signal input, one data signal input, and one output. The lights for each input can be one of the wavelengths within the N number (N-nary) of predetermined lightwaves. The output light of the PT is determined by the inputs in accordance with the switching function of the PT. The PT can be used to construct either N-nary digital logic gates or binary Boolean logic gates. For the N-nary system, both the wavelength domain and intensity domain of the lights are used which forms a two dimensional logic system. An optical AND gate, which can be used as either N-nary or binary, is constructed using the current photonic transistor, which is also presented herein.

REFERENCES:
patent: 5194979 (1993-03-01), Koai et al.
patent: 6778303 (2004-08-01), Song
patent: 7068866 (2006-06-01), Wang et al.

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