A low-power all optical decoder based on photonic crystal nonlinear ring resonators

In this paper, an all-optical 2-to-4 decoder based on photonic crystal nonlinear ring resonators is proposed. The designed decoder has one enable port which can control decoding operation. Using nano-crystal ring resonators, the threshold switching intensity is decreased to 13 W/μm2. The maximum frequency and total size of the device are obtained to be 160 GHz and 16 × 23 μm2 respectively. All output characteristics of the proposed decoder seem to be beneficial for being employed in optical integrated circuits.