Flexible bandwidth 448 Gb/s DMT Transmission for Next Generation Data Center Inter-Connects
Annika Dochhan, Helmut Grie{\ss}er, Michael Eiselt, J\"org-Peter, Elbers
TL;DR
This paper demonstrates a flexible DMT transmission system capable of delivering 448 Gb/s over 240 km using 4 to 8 channels, employing VSB filtering to mitigate chromatic dispersion effects.
Contribution
It introduces a flexible DMT system with VSB filtering for high-speed, long-distance data center interconnects, enhancing spectral efficiency and dispersion management.
Findings
Achieved 448 Gb/s transmission over 240 km SSMF
Utilized 4 to 8 channels on 50-GHz grid
VSB filtering effectively reduces chromatic dispersion impact
Abstract
We experimentally evaluate a flexible DMT system using 4 to 8 50-GHz-grid C-band channels to transmit 448 Gb/s over up to 240 km SSMF. VSB filtering enabled by detuned lasers significantly reduces the impact of chromatic dispersion.
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