Design of All-Optical Logic Half-Adder Based on Photonic Crystal Multi-Ring Resonator

نویسندگان

چکیده

In this paper, a novel design of an all-optical half-adder (HA) based on two two-ring resonators in two-dimensional square-lattice photonic crystal (PC) structure without nonlinear materials is proposed. The HA comprises AND and XOR gates where each gate composed cross-shaped waveguides 2D PC that are filled with silicon (Si) rods silica (SiO2). analyzed simulated using plane-wave expansion (PWE) finite-difference time-domain (FDTD) methods. Simulation results show light guiding inside the device functions as gates. Thus, proposed has potential for use optical arithmetic logic units digital computing circuits. were designed to work at C-band spectrum. Results there clear distinction between states 1 0 narrow power range leads better robust decision receiver side minimized errors circuit. can be key component designing unit.

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ژورنال

عنوان ژورنال: Symmetry

سال: 2023

ISSN: ['0865-4824', '2226-1877']

DOI: https://doi.org/10.3390/sym15051063