All-optical logic and arithmetic operations designed by modified add-drop filter

A small scale optical device system based on microring resonator system is designed for optical logic applications, which is used the optical logic and arithmetic operations based on optical tree architecture (OTA). In this paper, we study the effected of the system, which is comprised with modified add/drop filter, which is injected by the nonlinear pulses input for generated optical logic. The input and control of the circuit can be forms by nonlinear pluses. The obtained simulation results have shown that the nonlinear pulse generated by nonlinear ring resonator can be control the intensity output. In applications, the output consistency is importance, when the interconnection between each output part is required. The advantages of modified add/drop filter ring resonator are low power, ultra-fast switching and tunable output, which is suitable for small scale device and system requirements.