成果報告書詳細
管理番号20120000000247
タイトル*平成23年度中間年報 省エネルギー革新技術開発事業 先導研究 低消費電力サーバー実装技術の研究開発
公開日2012/5/10
報告書年度2011 - 2011
委託先名日本アイ・ビー・エム株式会社
プロジェクト番号P09015
部署名省エネルギー部
和文要約和文要約等以下本編抜粋:[記載項目]
1. 研究開発の内容及び成果等
1~1目的
IT 技術利用は指数関数的増加をしている。このような状況でもっとも経済的かつエネルギー利用効率の大きい利用方法として、データセンターのサーバーを利用する方法が一般的となってきている。しかしながらこのような最もエネルギー効率の高いデータセンターという利用形態をとったとしても、IT 機器の総エネルギー消費が2025 年には国内発電量の20%を超えると見込まれている。
英文要約Title: Project of innovative technology development for energy conservation / Leading research / Development of mount technologies realizing low-power consumption IT server (FY2011-FY2013) FY2011 Annual Report

The objective of this project is to develop mount technologies realizing low-power consumption IT servers. We aim to save from 20 percent to 33 percent of the power consumption of the next generation COMS servers. This project consists of three technical items: 1) highly integrated optical transmission technology for a low power chip-to-chip optical interconnection; 2) direct optoelectronic connector technology for a low power board-to-board optical interconnection; and 3) optical circuit switch type network technology for a low power rack-to-rack optical interconnection. The research results of these three items in 2011 are shown as bellow.

1. Low power chip-to-chip optical interconnection technology
We completed the basic evaluation of optical components used for silicon photonics. We made a single-mode polymer waveguide array which has an alignment structure. It connects the silicon waveguide array and the optical fiber array. We also completed the design of a silicon waveguide array. We made the special MT ferrule for the single-mode polymer waveguide array.

2. Low power board-to-board optical interconnection technology
We completed the design of our low power board-to-board direct optoelectronic signal connector. We designed and made a special LGA connector which had 0.5mm pitch of 400 pins. The connector has a square hole at the center for an optical interconnection portion. We also designed and made an evaluation board for this LGA connector. We designed and made a two dimension micro lens array prototype. The pair of the micro lens array is used at the center of the LGA connector for low loss connection between the board-to-board optical signal lines and the optical signal lines inner one board.

3. Low-power rack-to-rack optical interconnection using optical circuit switch
We completed the design of the optical circuit switch architecture using 4 pieces of XFP type optical transceiver and OCS for 10 Gbps single-mode rack-to-rack optical interconnection. We will evaluate the optical transceiver and OCS. We will realize a system operation of the optical circuit switch and decrease the optical loss for a practical operation of this system.
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