Beyond 1 Tb/s Intra-Data Center Interconnect Technology: IM-DD OR Coherent?

We discuss technology options and challenges for scaling intra-datacenter interconnects beyond 1 Tb/s bandwidths, with focus on two possible approaches: pulse amplitude modulation (PAM)-based intensity modulation-direct detection (IM-DD) and baud-rate sampled coherent technology. In our studies, we...

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Bibliographic Details
Published in:Journal of lightwave technology 2020-01, Vol.38 (2), p.475-484
Main Authors: Zhou, Xiang, Urata, Ryohei, Liu, Hong
Format: Article
Language:English
Subjects:
Bandwidth
Coherence
Coherent detection
coherent modulation
Comparative studies
Data centers
datacenter
Digital signal processing
direct detection
DSP
fiber
FlexPAM
IM-DD
interconnect
modulation format
optical
Optical fibers
Optical interconnections
Optical modulation
Optical polarization
PAM
Power consumption
Pulse amplitude modulation
QAM
Quadrature amplitude modulation
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