成果報告書詳細
管理番号20160000000381
タイトル*平成27年度中間年報 戦略的省エネルギー技術革新プログラム/省エネルギー技術開発事業の重要技術に係る周辺技術・関連課題の検討(平成27年度第2回)/高速プラスチック光ファイバ伝送システムの自動車搭載に向けた適合性調査
公開日2016/8/5
報告書年度2015 - 2015
委託先名矢崎総業株式会社 国立大学法人宇都宮大学
プロジェクト番号P12004
部署名省エネルギー部
和文要約本調査研究を通じて、GI-POFおよびコネクタ部分を用いた光伝送システムが、車載超高速光伝送の実用化に向けた最適解であることを実証し、今後の部品やシステムの実用化開発に必要な技術的仕様を策定する。また、システムプロトタイプ検証で省エネルギー効果やCO2削減量の算出根拠を見出し、見積もりを行う。調査項目として以下の3点を実施する。
1.10Gbps光伝送システムの調査
2.車載GI-POFコネクタの調査
3.耐熱性GI-POFの車載適用性調査
それぞれにおいて、技術仕様調査と製品化(マーケット)調査、さらには省エネ効果の算出(製造過程および製品実用過程の両方)を行う。 
英文要約Title: High-speed plastic-optical fiber-transmission system-adaptability to automotive installation (FY2015 - FY2016) FY 2015 Annual Report

We prove that the optical transmission system with GI-POF and optical connectors are the optimal solution for the practical use of automotive ultrahigh speed transmission and create the technical specifications required for the feasible development on the future components and systems. We also find out the validity of energy -saving-effect or calculating the amount of carbon dioxide emissions for quotation in our system prototype testing. The following three points are to be implemented for research and study.
 1. Research 10 Gbps-optical transmission system
 2. Research automotive GI-POF-connector
 3. Research heat-resistant GI-POF-adaptability to automotive installation
We conduct a technical specifications & market research and also calculate energy-saving-effect for the above respective three points.

1-1. Research 10 Gbps-optical transmission system:
Proposal of automotive Ethernet has been discussed in IEEE 802.3. SI-POF-1 Gbps-optical transmission system has been discussed in WG 802.3bv to aim the documentation within 2016. 10 Gbps-optical transmission system is scheduled to be proposed for documentation within 2018 and we need the technical accumulation in GI-POF-optical transmission system until then.

1-2. Build 10 Gbps-optical transmission system-prototype:
We measured data-frequency response for heat-resistant GI-POF by using a vector network analyzer. We confirmed that 10 GHz and over was secured in -3dB bandwidth at 40m of the fiber length.

2-1. Research automotive GI-POF connector:
In order to clarify our target to study in this project, we researched on the category of element technologies for optical connector-connection methods. Contact-type connection method is used for the most of optical connectors. Fusion splice is a glass fiber-specific connection method and also butt coupling results in deteriorating the transmission-performance under the vibration of the automotive environment. Therefore, we excluded the contact-type this time and confirmed that non-contact type-collimating optical coupling method needs to be verified its cost and reliability.

2-2. Design an automotive GI-POF connector:
We designed the prototype for GI-POF connector to check whether collimating optical coupling method has the ability in optics or not.

3. Research heat-resistant GI-POF-adaptability to automotive installation:
We tested the effect of transmission loss at environmental temperature in the range of -40 to 105 deg. C to check whether the heat-resistant GI-POF meets the requirements of automotive specifications or not.
The results confirmed that variations in transmission loss were within our target level. We determined that the heat-resistant GI-POF we tested this time met the automotive application in terms of the temperature characteristics.
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