A research on the planar optical devices for manipulating spatial state of light for large-capacity optical communication system
| Project/Area Number |
18H01486
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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) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
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| Keywords | 光ファイバ通信 / モード分割多重 / 平面光波回路 / シリコンフォトニクス / 光デバイス |
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| Outline of Final Research Achievements |
Optical devices for manipulating the spatial state of the light are investigated. Especially, silica-based optical devices for mode-division-multiplexed (MDM) transmission system are intensively investigated. Six-mode scrambling-type mode multiplexers with low insertion loss is proposed. For the compensation of mode dependent loss and differential group delay in the MDM system, 6-mode exchanger based on grating waveguide designed by wavefront matching (WFM) method is proposed and proof-of-concept device was successfully fabricated. Furthermore, the WFM method for the design of mode controlling devices containing waveguide discontinuities is newly developed, and ultrasmall WFM-designed Si waveguide mode exchanger was realized for the first time.
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| Academic Significance and Societal Importance of the Research Achievements |
モード分割多重技術は、空間分割多重技術の一つであり、光通信に残された最後の多重化軸と言われている。従来の長距離通信のみならず、データセンタ内外などあらゆるところに光ファイバ通信が用いられ、その需要が伸び続けている現在、従来と異なる多重化軸で光伝送容量を増やすことは、学術的のみならず、必ず解決しなければならない社会的課題でもある。本研究では、モード分割多重通信を実現する上で必須となる基礎光デバイスを研究、考案し、それを実験により実証した。これらの成果は将来のモード分割多重通信実現のための基礎技術となると考えられる。
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Report
(4 results)
Research Products
(46 results)
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[Journal Article] A review on PLC-based two-mode multi/demultiplexer designed by wavefront matching method2018
Author(s)
E. Taguchi, T. Fujisawa, Y. Yamashita, S. Makino, N. Hanzawa, T. Sakamoto, T. Matsui, K. Tsujikawa, K. Nakajima, F. Yamamoto, and K. Saitoh
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Journal Title
IEICE Transactions on Electronics
Volume: E101-C
Pages: 518-526
Related Report
Peer Reviewed
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