Full-gloss logic XNOR gate structure based on micro-ring resonator structure

A technology of micro-ring resonator and micro-ring resonator is applied in the field of all-optical logic XOR gate structure, which can solve problems such as extinction and achieve the effect of reducing working optical power
CN101794053BInactive Publication Date: 2012-03-07INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Publication Date
2012-03-07
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a full-gloss logic XNOR gate structure based on a micro-ring resonator structure, comprising a first nanowire waveguide, a second nanowire waveguide and a micro-ring resonant cavity, wherein the first nanowire waveguide and the second nanowire waveguide are parallel to each other, the micro-ring resonant cavity is positioned between the first nanowire waveguide and the second nanowire waveguide, gaps are respectively arranged between the micro-ring resonant cavity and the first nanowire waveguide and between the micro-ring resonant cavity and the second nanowire waveguide and ensure that the micro-ring resonant cavity satisfies critical coupling conditions so that light waves satisfying the resonant wavelength of the micro-ring resonant cavity can be completely coupled in the micro-ring resonant cavity through the first nanowire waveguide or the second nanowire waveguide, and the light extinction is realized on the output end of the first nanowire waveguide orthe second nanowire waveguide. The invention utilizes the two-photon absorption effect in the micro-ring resonant cavity to realize the logic function of full-gloss 'XNOR'.
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Description

technical field

[0001] The invention relates to the technical field of photonic devices, in particular to an all-optical logic XNOR gate structure based on a microring resonator structure. Background technique

[0002] The all-optical logic gate is the basic logic unit and the key core device in future optical computing. Similar to logic gates in electronics, all-optical logic gates use photons in waveguides as information carriers, and modulate the output of signal light by controlling pump light. The corresponding relationship between the input and output terminals of the waveguide can constitute a truth table, in which the logic state ("0" or "1") is determined by the optical power of the pump light and signal light at the port: high power corresponds to the logic value "1", And low power corresponds to a logic value "0". The following truth table of "XOR" logic is shown in the following truth table: when the control signals A and B are both "1", the corresponding signa...

Claims

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