Silicon photonics micro-ring resonator-based SR latch for optical memory applications

Nazym Abdeliyeva, Assylkhan M. Nurgali, Bikash Nakarmi, Carlo Molardi, Ikechi Augustine Ukaegbu

Scientific Reports, 2026

Full text Open access: Gold Metadata (CSL-JSON)
DOI 10.1038/s41598-026-66207-8
Data confidence 70 medium
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Abstract

We present the design and simulation of optical SR NAND and SR NOR latches using two vertical PN junction micro-ring resonators. By varying the doping concentrations and applied reverse voltages, the functionality of the latches is achieved. The proposed designs are analyzed theoretically and validated through simulations which demonstrate static and dynamic responses with data rates up to 30 Gbps. These results highlight the potential of vertical PN junction micro-ring resonators for high-speed optical logic circuits.