All-optical logic gate device based on nanowire waveguides of multislot silicon substrate
A nanowire, optical logic technology, applied in the field of integrated optics, can solve the problems of difficult to achieve ultra-high-speed all-optical logic operation, impractical design of all-optical logic gates, weak nonlinear effects of silicon-based materials, etc. Optical power requirements, the realization of optical signal processing, the effect of cheap structural materials
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[0026] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.
[0027] The present invention adopts the following technical solutions. An all-optical logic gate device based on a multi-slot silicon-based nanowire waveguide includes: two input waveguides 1 and 2 capable of inputting signal optical pulses and control optical pulses, and two output waveguides 3 , 4, mode converters 51, 52, nonlinear directional coupler 6, wherein the connection parts between the input waveguides 1, 2 and output waveguides 3, 4 and the nonlinear directional coupler 6 are the first mode converter 51 and the second The mode converter 52 realizes the mode conversion between the input waveguides 1, 2 and the output waveguides 3, 4 and the three-slot vertical silicon-based nanowire waveguide. The nonlinear directional coupler...
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