Design of DMD Nano Logic Gates With Strip Waveguides for Communication System

COMSOL software is used to build and quantify optical logic circuits using plasmonic square ring resonators. An operation utilizing constructive and destructive control along with input port interferences as inputs results in the proposed gates. At 1010 nm resonance wavelength, the transmission threshold is 30% at a single interface, the ratio of input power to output optical power. All plasmonic gates are executed within a singular structure measuring 150 nm by 150 nm. The OR gate and the AND gate exhibit transmission rates exceeding 100%, with both reporting a rate of 221%. The OR and AND gates exhibit modulation depth (MD) values of 96.38 percent, whereas the NOR gate demonstrates a value of 99.8 percent, these optical gates are used in transceivers for communication systems. Index Terms— plasmonic waveguides; optical logic gates; square ring resonator.