Scalable graphene platform for Tbits/s data transmission
Abstract
To date, no electro-optic platform enables devices with high bandwidth, small footprint, and low power consumption, while also enabling mass production. Here we demonstrate high-yield fabrication of high-speed graphene electro-absorption modulators using CVD-grown graphene. We minimize variation in device performance from graphene inhomogeneity over large area by engineering graphene-mode overlap and device capacitance to ensure high extinction ratio. We fabricate an 8 mm x 1 mm chip with 32 graphene electro-absorption modulators and measure 94% yield with bit error rate below the hard-decision forward error correction limit at 7 Gbits/s, amounting to a total aggregated data rate of 210 Gbits/s. Monte Carlo simulations show that data rates > 0.6 Tbits/s are within reach by further optimizing device cross-section, paving the way for graphene-based ultra-high data rate applications.
Cite
@article{arxiv.2011.08832,
title = {Scalable graphene platform for Tbits/s data transmission},
author = {Brian S. Lee and Alexandre P. Freitas and Andres Gil-Molina and Euijae Shim and Yibo Zhu and James Hone and Michal Lipson},
journal= {arXiv preprint arXiv:2011.08832},
year = {2020}
}