Practical Solutions for 400 Gbit/s Data Center Transmission

22 Sep 2020  ·  Annika Dochhan, Nicklas Eiselt, Jinlong Wei, Helmut Griesser, Michael Eiselt, Juan José Vegas Olmos, Idelfonso Tafur Monroy, Jörg-Peter Elbers ·

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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