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Coupled multicore fiber technology for innovative optical fiber communications

Research Project

Project/Area Number 19H02183
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionHokkaido University

Principal Investigator

Saitoh Kunimasa  北海道大学, 情報科学研究院, 教授 (20333627)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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
Outline of Research at the Start

光ファイバ中にコアが一つだけの従来のシングルコア単一モード光ファイバでは、耐非線形性、耐フューズ性、および伝送帯域の制限から、近い将来に伝送容量の限界に突き当たることが予想されている。本研究の概要は、1本の光ファイバに多数のコアを収容したマルチコアファイバ技術と、一つのコアの中を伝搬する複数の伝搬モードを利用したマルチモード伝送技術を組み合わせた「結合型マルチコアマルチモードファイバ」により、伝送容量の飛躍的な拡大と長距離伝送の両立を可能にする空間分割多重伝送技術の確立を目指す研究である。

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.

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。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (37 results)

All 2022 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (29 results) (of which Int'l Joint Research: 13 results,  Invited: 8 results)

  • [Journal Article] Multi-Core Fiber Technology for SDM: Coupling Mechanisms and Design2022

    • Author(s)
      Saitoh Kunimasa
    • Journal Title

      Journal of Lightwave Technology

      Volume: 40 Issue: 5 Pages: 1527-1543

    • DOI

      10.1109/jlt.2022.3145052

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analytical expression for mode-coupling coefficient between non-identical step-index cores and its application to multi-core fiber design within 125-μm cladding diameter2022

    • Author(s)
      Wang Yizhou、Fujisawa Takeshi、Saitoh Kunimasa
    • Journal Title

      Optics Communications

      Volume: 506 Pages: 127552-127552

    • DOI

      10.1016/j.optcom.2021.127552

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Novel Core Allocation in Heterogeneous Step-Index Multi-Core Fibers With Standard Cladding Diameter2021

    • Author(s)
      Wang Yizhou、Fujisawa Takeshi、Sagae Yuto、Sakamoto Taiji、Matsui Takashi、Nakajima Kazuhide、Saitoh Kunimasa
    • Journal Title

      Journal of Lightwave Technology

      Volume: 39 Issue: 22 Pages: 7231-7237

    • DOI

      10.1109/jlt.2021.3112656

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modal amplitude and phase estimation of multimode near field patterns based on artificial neural network with the help of grey-wolf-optimizer2021

    • Author(s)
      Sugawara Naoto、Fujisawa Takeshi、Nakamura Kodai、Sawada Yusuke、Mori Takayoshi、Sakamoto Taiji、Imada Ryota、Matsui Takashi、Nakajima Kazuhide、Saitoh Kunimasa
    • Journal Title

      Optical Fiber Technology

      Volume: 67 Pages: 102720-102720

    • DOI

      10.1016/j.yofte.2021.102720

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial Density and Splicing Characteristic Optimized Few-Mode Multi-Core Fiber2020

    • Author(s)
      Sakamoto Taiji、Saitoh Kunimasa、Saitoh Shota、Abe Yoshiteru、Takenaga Katsuhiro、Urushibara Azusa、Wada Masaki、Matsui Takashi、Aikawa Kazuhiko、Nakajima Kazuhide
    • Journal Title

      Journal of Lightwave Technology

      Volume: 38 Issue: 16 Pages: 4490-4496

    • DOI

      10.1109/jlt.2020.2987351

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A design of small mode-dependent-loss scrambling-type mode (de)multiplexer based on PLC2020

    • Author(s)
      M. Shirata, T. Fujisawa, T. Sakamoto, T. Matsui, K. Nakajima, and K. Saitoh
    • Journal Title

      Optics Express

      Volume: 28 Issue: 7 Pages: 9653-9665

    • DOI

      10.1364/oe.387890

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optimum index profile of few-mode coupled multicore fibers for reducing the group delay spread2019

    • Author(s)
      Yoshida Kazuki、Fujisawa Takeshi、Sato Takanori、Saitoh Kunimasa
    • Journal Title

      Optics Express

      Volume: 27 Issue: 11 Pages: 16281-16281

    • DOI

      10.1364/oe.27.016281

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Large Capacity Optical Communications by Optical Fibers for Space Division Multiplexing2019

    • Author(s)
      Saitoh Kunimasa
    • Journal Title

      IEICE Communications Society Magazine

      Volume: 13 Issue: 3 Pages: 166-176

    • DOI

      10.1587/bplus.13.166

    • NAID

      130007754993

    • ISSN
      2186-0661
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ツイストおよび曲げを有する結合型マルチコアファイバを用いた群遅延広がり低減2022

    • Author(s)
      本間和志, 佐藤孝憲, 藤澤 剛, 寒河江悠途, 坂本泰志, 松井 隆, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会光エレクトロニクス研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Silica-PLC based mode-dependent-loss equalizer for two LP mode transmission2022

    • Author(s)
      T. Fujisawa, T. Mori, J. Sakamoto, Y. Yamashita, T. Sakamoto, R. Imada, R. Ima, T. Sato, K. Watanabe, R. Kasahara, T. Hashimoto, K. Nakajima, K. Saitoh
    • Organizer
      Optical Fiber Communication Conference (OFC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 螺旋型コア配置による結合型マルチコアファイバのコア密度向上2022

    • Author(s)
      坂本夏翠, 佐藤孝憲, 藤澤 剛, 寒河江悠途, 坂本泰志, 松井 隆, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 偏心リングコアファイバによる群遅延広がり制御2022

    • Author(s)
      西島 遼, 佐藤孝憲, 藤澤 剛, 森 崇嘉, 坂本泰志, 山下陽子, 今田諒太, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2チップで構成されたWFM法設計6モード交換器によるMDL低減2022

    • Author(s)
      朝間友一, 藤澤 剛, 佐藤孝憲, 森 崇嘉, 坂本泰志, 今田諒太, 山下陽子, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Multi-core Fiber Technology for SDM: Coupling Mechanisms and Design2021

    • Author(s)
      Saitoh Kunimasa
    • Organizer
      Optical Fiber Communication Conference (OFC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 結合型マルチコアファイバにおけるモード分散制御2021

    • Author(s)
      齊藤晋聖
    • Organizer
      電子情報通信学会光通信インフラの飛躍的な高度化に関する研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 縮退モード分離による結合型マルチコアファイバの群遅延広がり制御2021

    • Author(s)
      坂本夏翠, 佐藤孝憲, 藤澤 剛, 寒河江悠途, 坂本泰志, 松井 隆, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 4モードスクランブラと光ユニタリ変換器を用いた2LPモード合分波器の検討2021

    • Author(s)
      吉田康人, 佐藤孝憲, 藤澤 剛, 森 崇嘉, 坂本泰志, 山下陽子, 今田諒太, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Proposal of PLC 10-mode-selective Photonic Lantern Mode Multiplexer2021

    • Author(s)
      H. Wang, Y. Sawada, T. Fujisawa, T. Sato, T. Mori, T. Sakamoto, Y. Yamashita, R. Imada, K. Nakajima, and K. Saitoh
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 125-μm Cladding Heterogeneous Step-Index Multi-core Fibers for Datacenter Networks2021

    • Author(s)
      Y. Wang, T. Fujisawa, Y. Sagae, T. Sakamoto, T. Matsui, K. Nakajima, and K. Saitoh
    • Organizer
      The 6th International Symposium on Extremely Advanced Transmission Technologies (EXAT)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] WFM法設計6モード交換器における導波路長依存性の調査2021

    • Author(s)
      朝間友一, 菅原直人, 藤澤 剛, 佐藤孝憲, 森 崇嘉, 坂本泰志, 今田諒太, 松井 隆, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Design of Randomly-Coupled Multicore Fibers2020

    • Author(s)
      Saitoh Kunimasa
    • Organizer
      IEEE Photonics Society Summer Topicals Meeting Series (SUM)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Step index 8-core fiber with 125-um cladding diameter for O-band use2020

    • Author(s)
      Y. Wang, T. Fujisawa, T. Sakamoto, T. Matsui, K. Nakajima, and K. Saitoh
    • Organizer
      Optoelectronics and Communications Conference (OECC)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of Group Delay Spread in Randomly-Coupled Multicore Fibers2020

    • Author(s)
      K. Saitoh, T. Fujisawa, and T. Sato
    • Organizer
      Optoelectronics and Communications Conference (OECC)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 大容量空間分割多重伝送用光ファイバーの最新動向2020

    • Author(s)
      齊藤晋聖
    • Organizer
      第156回微小光学研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Reduction of Group Delay Spread in Coupled Multicore Fibers2020

    • Author(s)
      Saitoh Kunimasa
    • Organizer
      Asia Communications and Photonics Conference (ACP)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] PLC型6モード交換器の接続における最適FMF構造の検討2020

    • Author(s)
      朝間友一, 菅原直人, 藤澤 剛, 佐藤孝憲, 坂本泰志, 松井 隆, 中島和秀, 齊藤晋聖
    • Organizer
      電気・情報関係学会北海道支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Evaluation of MDL due to Rotation During Splicing in Coupled Multicore Fibers2020

    • Author(s)
      Z. Zhao, T. Sato, T. Fujisawa, and K. Saitoh
    • Organizer
      電気・情報関係学会北海道支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 結合型マルチコアファイバのマクロベンド下における群屈折率と群遅延広がりの関係2020

    • Author(s)
      安井裕貴, 藤澤 剛, 佐藤孝憲, 齊藤晋聖
    • Organizer
      電子情報通信学会光エレクトロニクス研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 結合型マルチコアファイバにおけるツイスト及び曲げによるモード変換2020

    • Author(s)
      本間和志, 藤澤 剛, 佐藤孝憲, 齊藤晋聖
    • Organizer
      電子情報通信学会光エレクトロニクス研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 共通トレンチ層付加による数モード結合型マルチコアファイバにおける曲げ損失低減2020

    • Author(s)
      西村健汰, 藤澤 剛, 佐藤孝憲, 坂本泰志, 松井 隆, 寒河江悠途, 中島和秀, 齊藤晋聖
    • Organizer
      電子情報通信学会光エレクトロニクス研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Few-mode Multi-core Fibres: Weakly-coupling and Randomly-coupling2020

    • Author(s)
      Saitoh Kunimasa
    • Organizer
      European Conference on Optical Communications (ECOC)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Simple GDS Estimation Method for Coupled Multicore Fibers with Various Core Layouts2019

    • Author(s)
      Y. Yasui, K. Yoshida, T. Sato, T. Fujisawa, T. Sakamoto, T. Matsui, K. Tsujikawa, K. Nakajima, and K. Saitoh
    • Organizer
      International Symposium on Extremely Advanced Transmission Technologies (EXAT)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design of Low MDL Scrambling-type PLC 6-mode Multiplexer2019

    • Author(s)
      M. Shirata, M. Kudo, T. Fujisawa, T. Sakamoto, T. Matsui, K. Tsujikawa, K. Nakajima, and K. Saitoh
    • Organizer
      Optoelectronics and Communications Conference (OECC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cladding Diameter Dependence of Inter-Core Crosstalk in Heterogeneous Multicore Fibers2019

    • Author(s)
      K. Nishimura, T. Sato, T. Fujisawa, Y. Amma, K. Takenaga, K. Aikawa, and K. Saitoh
    • Organizer
      Optoelectronics and Communications Conference (OECC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] データセンタ間通信における SDM 技術の適用可能性2019

    • Author(s)
      齊藤晋聖, 藤澤 剛
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] A Design of PLC-Based 6-Mode Exchanger in Mode Division Multiplexed Transmission2019

    • Author(s)
      M. Shirata, T. Fujisawa, T. Sakamoto, T. Matsui, K. Nakajima, and K. Saitoh
    • Organizer
      IEEE Photonics Conference (IPC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Broadband PLC-type Mode Converter Designed by Wavefront Matching Method2019

    • Author(s)
      M. Shirata, T. Fujisawa, T. Sakamoto, T. Matsui, K. Tsujikawa, K. Nakajima, and K. Saitoh
    • Organizer
      Microoptics Conference (MOC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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