Comparison of Time Domain Hybrid PAM and DMT for Data Center Applications
Conference: Photonische Netze - 18. ITG-Fachtagung
05/11/2017 - 05/12/2017 at Leipzig, Deutschland
Proceedings: Photonische Netze
Pages: 7Language: englishTyp: PDF
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Authors:
Ohlendorf, Simon; Clausen, Dennis; Rath, Roi; Pachnicke, Stephan; Rosenkranz, Werner (Christian-Albrechts-Universität zu Kiel, Chair of Communications, Kaiserstr. 2, 24143 Kiel, Germany)
Abstract:
In this publication, we investigate and compare two approaches for flexible transmission systems with intensity modulation and direct detection for inter data center communications, namely discrete multi-tone and time domain hybrid pulse amplitude modulation. Both transmission approaches were used to vary the data rate between 56 and 112 Gb/s with fine granularity. Vestigial side-band transmission was used in order to avoid the power fading effect. Inter-symbol interference due to chromatic dispersion was compensated using digital signal processing at the receiver side. In an experimental verification of the DMT setup, we successfully transmitted 56 Gb/s over 150 km SSMF without in-line amplification.