All-Optical Logic Gates Based on Nonlinear Slot Waveguide Couplers
نویسندگان
چکیده
A novel design of all-optical logic gates based on nonlinear slot waveguide couplers is proposed. NOT, OR, and AND logic gates can be realized by simple single optical directional coupler configuration. Strong polarization dependencies of slot waveguides are effectively utilized for realizing polarization-independent optical directional couplers in linear regime and polarization-dependent all-optical switches in nonlinear regime. All the simulations performed in this paper are done for three-dimensional nonlinear channel waveguide structures by using rigorous numerical schemes based on full-vector finite-element method specially formulated for nonlinear optical waveguides.
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