Nonlinear Switching Structure-Based All-Optical Modulus-3 Counter

Optical switching methods when incorporated into logical circuits can provide optimum results in efficient and speedy communication. Optical switches, using the concept of non-linearity, an intensity-dependent phenomenon, take advantage of this fact and can be used to design an extremely rapid mechanism. The optical realization of the MOD-3 Counter is built upon the Micro Ring Resonator (MRR) structure. The utilization of the photonic D-flip-flop assists the purpose of switching action and helps in the realization of the MOD-3 Counter. The Boolean expressions are computed using K-map and verified using a truth table. MATLAB-simulated results back our proposition of optical implementation in digital logic design.