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Enabling Technologies for Optical Data Center Networks: Spatial Division Multiplexing
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DOI：10.1109/JLT.2019.2941765.png)
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Abstract
En 中文
With the continuously growing popularity of cloud services, the traffic volume inside the data centers is dramatically increasing. As a result, a scalable and efficient infrastructure for data center networks (DCNs) is required. The current optical DCNs using either individual fibers or fiber ribbons are costly, bulky, hard to manage, and not scalable. Spatial division multiplexing (SDM) based on multicore or multimode (few-mode) fibers is recognized as a promising technology to increase the spatial efficiency for optical DCNs, which opens a new way towards high capacity and scalability. This tutorial provides an overview of the components, transmission options, and interconnect architectures for SDM-based DCNs, as well as potential technical challenges and future directions. It also covers the co-existence of SDM and other multiplexing techniques, such as wavelength-division multiplexing and flexible spectrum multiplexing, in optical DCNs.
Keywords:
Few-mode fiber
fiber-optical communication
multicore fiber
multiplexing and demultiplexing
network architecture
optical data center networks
resource allocation
spatial division multiplexing
switching
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