Development of new-generation data-centric optical networks

2018 Fiscal Year Final Research Report

• Project/Area Number: 26220905
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Communication/Network engineering
• Research Institution: Nagoya University
• Principal Investigator: Sato Ken-ichi 名古屋大学, 工学研究科, 教授 (00377805)
• Co-Investigator(Kenkyū-buntansha): 神野 正彦 香川大学, 創造工学部, 教授 (10503550) ; 森 洋二郎 名古屋大学, 工学研究科, 助教 (10722100) ; 長谷川 浩 名古屋大学, 工学研究科, 准教授 (40323802) ; 菊池 和朗 東京大学, 工学(系)研究科(研究院), 教授 (50134458)
• Project Period (FY): 2014-05-30 – 2019-03-31
• Keywords: フォトニックネットワーク / コヒーレント伝送 / 空間多重 / 光クロスコネクト / 光分岐挿入ノード / 光パス

Outline of Final Research Achievements

Making the best use of cutting-edge technologies such as; next-generation spatial division multiplexing on multiple-core fibers, scalable node architectures, advanced optical transmission that can maximally utilize frequency resources of fibers, and network architectures that enable transparent and seamless operations of national-wide and metro-area networks where transmission impairment is substantially reduced, we have achieved substantial network capacity enhancement, high energy efficiency, and excellent frequency utilization in photonic networks where routing operations are effectively conducted in the optical domain. Metrics in each technology, i.e. spatial multiplexing degree, maximum number of nodes that can be traversed by an optical path, maximum fiber degree of node, and frequency utilization efficiency has been substantially expanded so that they exceed the original target values. The product of the metrics yields 2,400 times of the present product value.

Free Research Field

情報ネットワーク

Academic Significance and Societal Importance of the Research Achievements

増加率が年率+20～30% (6.2～13.8倍/10年)にも達する通信トラフィックを効率良く収容する次世代フォトニックネットワークが，現実的な装置コストおよび消費電力で構成できることを明らかにした．これにより将来にわたって発展可能な情報通信インフラストラクチャの実現可能性を示した．