A Novel Design for an Ultracompact Optical Majority Gate based on Ring Resonator on Photonic Crystals Substrate

Abstract

This paper tries to design and simulate a majority gate with three inputs based on the resonance ring of 2D photonic crystals. In the design of this gate, a resonator gate and 4 waveguides in a square lattice have been used. This structure is simple and small with dielectric rods of silicon on an air substrate. Low and high logics are defined based on the optical sources being on or off. The large interval between 0 and 1 at the output demonstrates high accuracy of this optical gate. The operating wavelength of this optical majority gate is 1.55µm, which is in the photonic band-gap calculated for the gate structure. Calculations are carried out in the TM mode using the FDTD numerical method.

A Compact Filtering Coupler with Unwanted Harmonic Rejection Using LC Composite Lines for Communication Systems Applications

“…The values of Z 2 and θ 2 are calculated as listed in Table 1. Similar to the horizontal analyses, the ABCD parameters for the conventional and the proposed vertical branches should be equated using Equations ( 1)- (9). The values of Z2 and θ2 are calculated as listed in Table 1.…”

“…Resonators, which can improve the performance of the electronic components [9], are widely used to provide a wide suppression band for the microwave devices, such Systems 2023, 11, 14 2 of 14 as couplers [10], filters [11,12], and diplexers [13]. FBLC is designed using resonators in [14] and meandered lines to decrease the area and increase the performance of the device.…”