The National Science Foundation (NSF) Division of Electrical, Communications and Cyber Systems awarded a $400,000 Project Grant to the Texas A&M Engineering Experiment Station (Tees) under the NSF Engineering program (CFDA 47.041). The goal of the 3-year project is to develop an energy-efficient coherent optical interconnect architecture that can enable dramatic increases in datacenter and high-performance computing bandwidth-density and energy-efficiency. The key technical innovations involve co-designing high-bandwidth photonic devices, including thin-film lithium niobate Mach-Zehnder modulators and graphene photodetectors, with energy-efficient CMOS transmitters and receivers. The project will also develop an optical phase-locked loop-based carrier recovery scheme to address limitations in conventional coherent links. This interdisciplinary effort involves Texas A&M University and National Chung Hsing University students, and will produce prototype integrated circuits in advanced CMOS and silicon photonic processes.
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