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Key technologies for elastic optical networks

机译:弹性光网络的关键技术

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The continuous growth of IP traffic in combination with emerging applications with various bandwidth demands is driving the introduction of elastic optical network (EON) with flex grid. EON can increase spectrum utilization by better matching data rate with the allocated bandwidth and improve the spectral efficiency by multi-carrier and high-order modulation solutions. In this article the architecture and key technologies for physical layers of EON will be introduced. We propose optical-comb based bandwidth-variable optical transponder and optical switching node supporting software definition. Key technologies for physical layer of elastic optical networks are experimentally demonstrated, including bandwidth-variable add/drop, subband switching, spectrum conversion, defragmentation and multicasting for optical superchannel.
机译:IP流量的不断增长以及对各种带宽需求的新兴应用的结合,正推动着具有弹性网格的弹性光网络(EON)的引入。 EON可以通过使数据速率与分配的带宽更好地匹配来提高频谱利用率,并通过多载波和高阶调制解决方案提高频谱效率。本文将介绍EON物理层的体系结构和关键技术。我们提出了基于光梳的带宽可变光转发器和支持软件定义的光交换节点。实验证明了弹性光网络物理层的关键技术,包括带宽可变的分插,子带切换,频谱转换,碎片整理和用于光超通道的多播。

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