Practical Solutions for 400 Gbit/s Data Center Transmission
Annika Dochhan, Nicklas Eiselt, Jinlong Wei, Helmut Griesser, Michael, Eiselt, Juan Jos\'e Vegas Olmos, Idelfonso Tafur Monroy, J\"org-Peter Elbers
TL;DR
This paper reviews three cost-effective modulation schemes—DMT, PAM-4, and multi-band CAP—for achieving 400 Gbit/s data center interconnects over distances up to 80 km, highlighting their potential for high-speed data transmission.
Contribution
It introduces and compares three promising modulation schemes for 400 Gbit/s data center interconnects, focusing on low-cost solutions for up to 80 km reach.
Findings
DMT, PAM-4, and multi-band CAP are promising for 400 Gbit/s data center links.
Combining eight channels of 56 Gbit/s enables high-speed transmission.
These schemes offer cost-effective options for data center interconnects.
Abstract
We review three solutions for low-cost data center interconnects with a target reach of up to 80 km. Directly detected DMT, PAM-4 and multi-band CAP are promising modulation schemes, enabling 400 Gbit/s by combining eight channels of 56 Gbit/s.
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