Silicon micro-ring resonator-based all-optical digital-to-analog converter

摘要

All-optical N-bit digital-to-analog converter based on silicon microring resonators (MRRs) and optical splitters, which can convert N-bit optical digital signal to an optical analog signal, is proposed and described in this paper. We design and simulate 2-bit digital-to-analog converter based on two MRRs and two optical splitters. Two optical pump signals represent the two operands of the logical operations to modulate the two MRRs. The proposed silicon MRRs has high extinction ratios of 16.94 and 15.98 dB at very low pump powers of 1.76 and 1.82 mW, respectively.