Kilper Daniel C, Peyghambarian Nasser
Appl Opt. 2020 Aug 1;59(22):G209-G218. doi: 10.1364/AO.394119.
Metro and data center networks are growing rapidly, while global fixed Internet traffic growth shows evidence of slowing. An analysis of the distribution of network capacity versus distance reveals capacity gaps in networks important to wireless backhaul networks and cloud computing. These networks are built from layers of electronic aggregation switches. Photonic integration and software-defined networking control are identified as key enabling technologies for the use of optical switching in these applications. Advances in optical switching for data center and metro networks in the CIAN engineering research center are reviewed and examined as potential directions for optical communication system evolution.
城域网和数据中心网络正在迅速发展，而全球固定互联网流量增长却有放缓迹象。对网络容量与距离分布的分析揭示了对无线回程网络和云计算至关重要的网络中存在容量差距。这些网络由电子聚合交换机层构建而成。光子集成和软件定义网络控制被视为在这些应用中使用光交换的关键使能技术。本文回顾并审视了CIAN工程研究中心在数据中心和城域网光交换方面的进展，将其作为光通信系统演进的潜在方向。
