2021 Fiscal Year Final Research Report
Coupled multicore fiber technology for innovative optical fiber communications
| Project/Area Number |
19H02183
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 光デバイス・光回路 / 光ファイバ / 空間分割多重 / マルチコアファイバ |
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| Outline of Final Research Achievements |
In this research, a multi-core fiber design technology that considers random phase errors caused by random structural perturbations and random polarization mode coupling, in addition to deterministically given perturbations such as bending and twisting of optical fibers has been developed. By comparing the experimental measurement results and the numerical simulation results of the spatial mode dispersion in coupled multi-core fibers, the relationship between the perturbation amount and the spatial mode dispersion in the actual transmission line was quantitatively clarified. In addition, the possibility of a coupled multi-mode multi-core fiber that combines multi-core technology and multi-mode technology was examined, and the conditions for enhancing random-mode coupling between different mode groups were clarified.
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| Free Research Field |
光ファイバ通信、光エレクトロニクス、光ファイバ応用技術
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により、マルチコア技術とマルチモード技術を融合させた結合型マルチモードマルチコアファイバの空間分割多重伝送路への適応性を確認した。結果として、空間多重数の向上と伝送距離の拡大のトレードオフ関係の課題を解決する可能性を示し、将来の毎秒ペタビットからエクサビット級の光ファイバ通信実現に向けての研究開発の見通しを得た。
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