| Project/Area Number |
18K13761
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 21020:Communication and network engineering-related
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| Research Institution | National Institute of Information and Communications Technology |
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Principal Investigator |
Rademacher Georg 国立研究開発法人情報通信研究機構, ネットワークシステム研究所フォトニックネットワークシステム研究室, 研究員 (20795661)
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | space-division multiplex / multi-mode fiber / nonlinear signal prop / optical wavel conversion / Nonlinear Propagation / Few-Mode Fiber / Optical Signal Proces. / Space-Division Multip. / Optical Communication / Nonlinear transmission / Parametric Amplification |
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| Outline of Final Research Achievements |
Nonlinear signal interaction between signals that propagate in different fiber modes of a few-mode fiber have been investigated experimentally. we investigated the relative strength of intra- and intermodal nonlinear signal interactions, and concluded that it can be of similar strength. The results were published at ECOC2018. We further compared the experimental results with an analytical investigation of the intermodal nonlinear signal interaction, with good agreement. These results were published in the Journal of Lightwave Technology. We further developed and fabricated a preliminary highly nonlinear few-mode fiber. This fiber was used to demonstrate the conversion of various signals from the C Band in one fiber mode to the L Band in the other fiber mode with minimum conversion penalty. We published the results at OFC2019 where it was a top-scored paper. We got invited to contribute an article on this topic for IEEE JSTQE was recently published.
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| Academic Significance and Societal Importance of the Research Achievements |
Optical fiber transmission systems form the backbone of the global communications infrastructure. The research results from this project allow to estimate the performance limitation of novel few-mode fibers for future-proof optical transmission systems.
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