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成果報告書詳細
管理番号20190000000393
タイトル*平成30年度中間年報 高効率・高速処理を可能とするAIチップ・次世代コンピューティングの技術開発プロジェクト/次世代コンピューティング技術の開発/ディスアグリゲーション型次世代データセンタに適用する光電ハイブリッドスイッチを用いた高速低電力データ伝送システムの研究開発
公開日2019/6/25
報告書年度2018 - 2018
委託先名技術研究組合光電子融合基盤技術研究所
プロジェクト番号P16007
部署名IoT推進部
和文要約
英文要約Title:Project for Innovative AI Chips and Next-Generation Computing Technology Development/Development of Next Generation Computing Technologies/Research and Development of High Speed and Low Power Data Transfer System Using Photonic & Electronic Hybrid Switch for Next Generation Datacenter with Disaggregation Architecture (FY2018-FY2020)FY2018 Annual Report

1-1. Photoelectric hybrid switch (SW) control technology:
The two high-speed path control techniques by changing type of service of IP packets and the
routing tables of top of rack (ToR) SW were proposed. Furthermore, the function assignment
between optical SWs and the system controller was proposed.

1-2. Photoelectric hybrid SW control Algorithm:
A service-oriented traffic engineering algorithm was demonstrated using typical traffic patterns on a
datacenter network simulator. A highspeed control plane was also proposed, and the experimental
result shows that it is feasible to change routing within 100 microseconds.

1-3. Performance maximization of optical SW network architecture:
For creating next generation computing systems that can support various services including AI
related and cloud ones, computer simulation programs are developed that can analyze various optical
SW performances.

2-1. Optical wavelength transmitter and receiver:
The architecture of optical wavelength transmitter and receiver and an algorithm of control circuit
for fast optical wavelength switching and burst mode reception were studied. The control sequence
of devices after receiving wavelength control signal was also studied.

2-2. burst-mode, multi-level-modulation processor:
A burst-mode, multi-level-modulation processor is the electronic signal processing circuit embedded
within Terabit-per-second class optical transceiver. The Estimation method of a burst response time
was studied. A basic element circuit at 7-nm node was designed, and a layout design was put into
effect.

3.optical core SW:
We fabricated twenty wafers of silica-based PLC to investigate the optimum physical parameters
such as thickness and component ratio in order to reduce their switching time, and optimum design
parameters of various elements. And we started Si photonics circuit design to reduce the loss.

4. International standardization:
IETF and OCP are investigated to consider the platform candidate for offering the developed
software as open source. OIF, IEEE and IEC/TC are investigated to study the standardization trends
related to the hardware of the O/E hybrid switch. Conferences and exhibitions are also surveyed.

5. Photoelectric hybrid SW system verification:
An experimental configuration for function verification is proposed. And required functions to each
system components and setting conditions were clarified. For an example, optical loop-back setting
to the optical core SW was suggested.
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