Digital photonics parity bit error detection system

Abstract

The optical communication medium is emerging to be one of the potential replacements to the current electronic systems widely used today. This is due to its much higher data transmission with extremely low loss properties, not to mention that it is almost invulnerable to electromagnetic interference. In this paper we demonstrated our proposed design of a digital photonic parity bit error detection system, one of the fundamental digital electronic circuits used during long-range digital signal transmission. Silicon photonic micro-ring resonators are used as its core component, where each of the rings operates as a digital logic XOR mode, by taking advantage of the resonance shifting properties of the silicon waveguide. Dynamic response characterization has been carried out by simulating the proposed circuits at the data rate of 1Gbps, with the data sampling rate of 1.6THz, and clear timing waveform was generated to show that the proposed circuit operates as the parity bit error detection system.