Design of micro-ring resonator based all-optical parity generator and checker circuit

The need of high-speed digital optical communication and computing systems demands ultra-fast all-optical fault detection and correction circuit. In this paper, we have exploited the attractive and powerful nonlinear property of the micro-ring resonator as an all optical switch to design 3 bit all-optical parity generator and checker circuit. A single circuit consisting of 4 micro-ring resonators capable to perform 3 bit parity generator and checker operations is studied and reported. This makes proposed circuit design compact, simple and will be helpful in designing all optical integrated circuit in future. Numerical simulation results confirming described methods are given in this paper and different ‘figure of merits’ are also calculated from the simulation output.