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Published in:
03-08-2021
Analysis of all-optical priority encoder using plasmonics waveguide
Published in: Journal of Computational Electronics | Issue 5/2021
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Abstract
The proposed all-optical circuit utilizes the deep sub-wavelength confinement properties of plasmonic metal–insulator–metal waveguides. All-optical priority encoder accepts \({2}^{n}\) inputs and produces \(n\) outputs. The priority encoder is designed using the plasmonics waveguide-based Mach–Zehnder interferometer (P-MZI). The P-MZI works as an all-optical switch. The switching of the signal depends on the power of the applied optical input signal. This waveguide has a nonlinear material inside. The proposed work is analyzed using the finite-difference time-domain method, and a mathematical description is also given. Parameters such as insertion loss and extinction ratio are reported as 15.82 dB and 0.57 dB, respectively.