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Multiplexing techniques by using elliptic electric-field trajectory of single sideband modulation signal for optical communication systems

Research Project

Project/Area Number 19H02134
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionYamagata University

Principal Investigator

Takano Katsumi  山形大学, 大学院理工学研究科, 教授 (60302303)

Co-Investigator(Kenkyū-buntansha) Kariyawasam Amila (K.I AmilaSampath)  九州大学, システム情報科学研究院, 助教 (90801192)
多田 十兵衛  山形大学, 大学院理工学研究科, 助教 (30361273)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords光ファイバ通信 / 変復調 / 単側波帯 / 楕円 / 多重
Outline of Research at the Start

光ファイバ通信の容量拡大のために現在検討されている多重方式の多くは,光の属性に依存しており,限界が見えている.それを越える多重化技術を検討する.ディジタル伝送の時間軸を上手に利用する技術を丁寧に見直せば,信号の時間的変化に数学的直交性を見出すことで新しい時間多重が可能である.光単側波帯(SSB)変調信号の光複素振幅は時間に対して楕円様の軌跡を描くことがわかった.楕円は,長短軸や回転方向に直交性を持ち,楕円体座標や楕円関数を応用することができる.本研究は,光SSB変調の光複素振幅軌跡が楕円であることを利用して,楕円パラメータを多重軸とした通信用多重化技術を提案し,その性能を明らかにする.

Outline of Final Research Achievements

In order to increase the capacity of optical fiber communication, a method that does not depend on the attributes of light is required. In this study, we investigated a method to increase the capacity by using the temporal elliptical trajectory of the optical field complex amplitude of optical single sideband (SSB) modulation.
By using the high-pass type of Hilbert transform used in optical SSB modulation, we find that the trajectory the optical SSB modulated signal can be changed from an ellipse to a circle. Taking advantage of the circular trajectory, we also show that we can generate optical QPSK codes with suppressed sideband.
We obtained knowledge about optical multi-symbol signaling with optical SSB, in other words, a kind of multiplexing in the optical complex plane. Our future plan is the improvement on the demodulation scheme for more flexible multiplexing on the complex plane.

Academic Significance and Societal Importance of the Research Achievements

光ファイバ通信の大容量化は光の属性を用いることを特徴としてこの20年間歩んできた.一層の大容量化のために,信号の時間的な変化に着目し,光単側波帯(SSB)変調の光電界の複素平面上の軌跡に着目した.楕円状の軌跡を円様に変化させ,複数の円の交点で複素平面上の複数のシンボル点を表現することで多値符号を実現する可能性を引き出した.これは,狭い周波数帯域で多くの情報を伝送できることを意味する.この本研究の学問的な意義は,情報技術を活用した安全安心でスマートな社会を構築する情報通信基盤に寄与すると考えられる.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (26 results)

All 2022 2021 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (18 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results) Book (2 results) Remarks (2 results)

  • [Journal Article] Optical Transceivers That You Can Enjoy Making with Easily Available Parts2022

    • Author(s)
      高野勝美,山吉康弘,鈴木貴彦,増田純平,武田利浩,野本弘平
    • Journal Title

      IEICE Communications Society Magazine

      Volume: 16 Issue: 1 Pages: 18-29

    • DOI

      10.1587/bplus.16.18

    • ISSN
      1881-9567, 2186-0661
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optical field trajectory shaping of phase-shift method-based optical BPSK-VSB signal;an experimental study2021

    • Author(s)
      Kariyawasam Amila、Shiraiwa Masaki、Awaji Yoshinari、Takano Katsumi、Maeda Joji
    • Journal Title

      IEICE Communications Express

      Volume: 10 Issue: 8 Pages: 570-575

    • DOI

      10.1587/comex.2021XBL0100

    • NAID

      130008070782

    • ISSN
      2187-0136
    • Year and Date
      2021-08-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Study on Sampling Penalties Reduction of Kramers-Kronig Receivers2021

    • Author(s)
      Toba Kentaro、Fujita Takaha、Tsukui Enzo、Sampath Kariyawasam Indipalage Amila、Maeda Joji
    • Journal Title

      Journal of Lightwave Technology

      Volume: 39 Issue: 19 Pages: 6054-6062

    • DOI

      10.1109/jlt.2021.3099938

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Peak-to-Average Power Ratio Reduction of Carrier-Suppressed Optical SSB Modulation: Performance Comparison of Three Methods2021

    • Author(s)
      Sampath K. I. Amila、Takano Katsumi、Maeda Joji
    • Journal Title

      Photonics

      Volume: 8 Issue: 3 Pages: 67-67

    • DOI

      10.3390/photonics8030067

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Experimental Demonstration of OSSB+C Generation using EML and LN Phase Modulator2022

    • Author(s)
      Amira Kariyawasam, Tomoya Asano and Joji Maeda
    • Organizer
      OSA Advanced Photonics Congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マッハツェンダ形光SSB変調器並列化の残留側波帯低減効果変調度依存性2022

    • Author(s)
      佐藤貴紀,高野勝美
    • Organizer
      2022年度電気関係学会東北支部連合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 搬送波抑圧光単側波帯変調技術とその展開2022

    • Author(s)
      高野勝美,カーリヤワサム アミラ
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] エルビウム添加光ファイバ増幅器を含む光ファイバリング中の光パルスの計算2022

    • Author(s)
      江端健,高野勝美
    • Organizer
      令和4年東北地区若手研究者研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Influence of digital Hilbert transformers on digital-coherent-detected optical SSB quadrature component for data-center networks2021

    • Author(s)
      Ayumi Nakazawa, Masataka Kasai, Tomohiro Ito, and Katsumi Takano
    • Organizer
      The 9th International Conference on Smart Systems Engineering 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 振幅スクランブル光通信とそのシンボル誤り率2021

    • Author(s)
      三浦史章,高野勝美
    • Organizer
      令和3年東北地区若手研究者研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2波WDM搬送波抑圧光SSB変調信号伝送のXPMによるスペクトル変化2021

    • Author(s)
      飴野亨,高野勝美
    • Organizer
      令和3年東北地区若手研究者研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] キャリア抑圧光SSB 変調光ファイバ伝送のXPM によるスペクトル変化の観測2020

    • Author(s)
      飴野亨,高野勝美
    • Organizer
      2020年度電気関係学会東北支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Optically filtered VSB modulation for data-center networks2020

    • Author(s)
      Kota Suzuki, Masaki Tasugi, Kenji Nozawa, K. I. Amila Sampath, and Katsumi Takano
    • Organizer
      The 8th International Conference on Smart Systems Engineering 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Harmonics mitigation by parallelization of optical SSB modulators for high capacity communications2020

    • Author(s)
      Takanori Sato, Kenji Nozawa, K. I. Amila Sampath, and Katsumi Takano
    • Organizer
      The 8th International Conference on Smart Systems Engineering 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Implementation of a Grid Square Codes Generator on a RISC-V Processor2020

    • Author(s)
      Jubee Tada, Keiichi Sato
    • Organizer
      2020 Eighth International Symposium on Computing and Networking Workshops
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EDFA とクラッド励起マルチコアEDFA のステップ応答解析2020

    • Author(s)
      大村知輝,高野勝美
    • Organizer
      レーザー学会学術講演会第40回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] FDTD法における正方形グリッドを用いた円柱2次元フォトニック結晶の分割方法2020

    • Author(s)
      岩崎克海,高野勝美
    • Organizer
      令和2年東北地区若手研究者研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 光PAM4信号の非対称帯域制限の影響2020

    • Author(s)
      櫻井美咲,高野勝美
    • Organizer
      令和2年度情報処理学会東北支部研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Optical QPSK signal generation based on the circular trajectory of phase-shifted optial VSB modulation using high-pass Hilbert transformers2019

    • Author(s)
      Daichi Sato, Kariyawasam Indipalage Amila Sampath, and Katsumi Takano
    • Organizer
      The 24th OptoElectronics and Communications Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光パルス符号位相シフト型単側波帯変調のパルス幅に関する一検討2019

    • Author(s)
      高野勝美,平井貴也
    • Organizer
      2019年度電気関係学会東北支部連合大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Experimentally observed stimulated Brillouin scattering and optical parametric amplification in a radio-over-fiber link2019

    • Author(s)
      Kariyawasam Indipalage Amila Sampath, Yushin Hayashi, and Joji Maeda
    • Organizer
      14th IEEE International Conference on Industrial and Information Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光単側波帯信号の波長分割多重伝送ファイバ非線形歪みの検討2019

    • Author(s)
      飴野亨,高野勝美
    • Organizer
      2019年度電気関係学会東北支部連合大会
    • Related Report
      2019 Annual Research Report
  • [Book] 次世代高速通信に対応する光回路実装、デバイスの開発2022

    • Author(s)
      高野勝美,カーリヤワサム アミラ
    • Total Pages
      628
    • Publisher
      技術情報協会
    • ISBN
      9784861049019
    • Related Report
      2022 Annual Research Report
  • [Book] Advanced Technique and Future Perspective for Next Generation Optical Fiber Communications2022

    • Author(s)
      K. I. Amila Sampath, Katsumi Takano, and Joji Maeda
    • Total Pages
      124
    • Publisher
      MDPI Books
    • ISBN
      9783036541365
    • Related Report
      2022 Annual Research Report
  • [Remarks] 山形大学高野研究室

    • URL

      https://www.takanolab.yz.yamagata-u.ac.jp/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 山形大学高野研究室

    • URL

      http://www.takanolab.yz.yamagata-u.ac.jp/

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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