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A study on Kramers-Kronig Relation-based Optical Transceiver

Research Project

Project/Area Number 20K14739
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionTokyo University of Science

Principal Investigator

Kariyawasam Amila  東京理科大学, 理工学部電気電子情報工学科, 助教 (90801192)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords光通信 / 直接検波 / KK受信 / ファイバ伝送 / DD-MZM
Outline of Research at the Start

近・中距離光通信システムの大容量化の場合は低コスト化・低消費電力化が優先されることから,直接検波方式を用いる伝送技術が多く検討されている.近年,直接検波波方式を用いるシステムでは直接検波後に光電界が復調可能なKramers-Kronig (KK) 受信器が提案された.一方,今までのKK受信器を用いる検討では高価な光IQ変調器をベースにした送信器構成しか検討されておらず,コストの増加が懸念される.そこで,本研究では,Dual-drive Mach-Zhender modulator (DDMZM)ベースにKK受信方法を用いる低コスト光トランシーバ構成について研究する.

Outline of Final Research Achievements

In direct detection (DD) optical communication systems where cost and power consumption reduction are priorities, transmission distance is limited by fiber dispersion. Kramers-Kronig (KK) relation-based receiver can compensate for fiber dispersion after DD. However, the requirements of high-speed signal processing and an optical tone are some issues of the KK receiver.
In this research project, we focused on the implementation aspect and investigated the following four major issues for the KK optical transceiver. (1) Influence of quantization during A/D conversion, (2) Methods to reduce the digital upsampling required for optical field restoration, (3) Effects of the modulation format of the optical signal during KK reception, and (4) Transmission characteristics of the system based on the KK receiver.

Academic Significance and Societal Importance of the Research Achievements

本研究ではKK受信の際必要とされるディジタルアップサンプルおよび光トーンパワー対信号パワー比を低減できる新しアルゴリズムが提案された.また,KK受信方式を用いる光通信システムの伝送限界やそれに変調フォーマットが与える影響について明らかになった.
これらの結果よりトランシーバのコストだけではなく,消費電力の低減が可能になるため,持続可能な光通信システムの実装に貢献する可能性がある.

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [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] Kramers-Kronig relation based direct detection for unrepeated long-haul lightwave transmission2021

    • Author(s)
      Tsukui Enzo、Toba Kentaro、Fujita Takaha、Sampath K. I. Amila、Maeda Joji
    • Journal Title

      IEICE Communications Express

      Volume: 10 Issue: 8 Pages: 516-521

    • DOI

      10.1587/comex.2021ETL0028

    • NAID

      130008070806

    • ISSN
      2187-0136
    • Year and Date
      2021-08-01
    • Related Report
      2020 Research-status 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 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of Sampling and Quantization on Kramers-Kronig Relation-Based Direct Detection2020

    • Author(s)
      FUJITA Takaha、TOBA Kentaro、SAMPATH Kariyawasam Indipalage Amila、MAEDA Joji
    • Journal Title

      IEICE Transactions on Communications

      Volume: E103.B Issue: 11 Pages: 1291-1298

    • DOI

      10.1587/transcom.2019OBP0008

    • NAID

      130007933865

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2020-11-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Kramers-Kronig関係を用いた直接検波コヒーレント受信におけるヒルベルト変換の実装に関する一検討2021

    • Author(s)
      田村凌,カーリヤワサム アミラ, 前田譲治
    • Organizer
      電子情報通信学会2021年ソサイエティ大会, B-10-15
    • Related Report
      2021 Annual Research Report
  • [Presentation] Kramers-Kronig関係を用いた直接検波光コヒーレント受信の変調方式依存性に関する研究2021

    • Author(s)
      大藤寛生,カーリヤワサム アミラ, 前田譲治
    • Organizer
      電子情報通信学会2021年ソサイエティ大会,B-10-16
    • Related Report
      2021 Annual Research Report
  • [Presentation] Availability of Kramers-Kronig relation based direct detection for unrepeated long-haul light wave transmission2020

    • Author(s)
      E. Tsukui, K. Toba, T. Fujita, K. I. A. Sampath, and J. Maeda
    • Organizer
      2020 International Conference on Emerging Technologies for Communications (ICETC 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mitigating the Sampling Rate Requirements of KK Receiver by Eliminating Harmonics of Nonlinear Operations2020

    • Author(s)
      K. Toba, T. Fujita, K. I. A. Sampath, and J. Maeda
    • Organizer
      OSA Advanced Photonics Congress (AP) 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Kramers-Kronig受信器における標本化によるペナルティの低減に関する一検討2020

    • Author(s)
      鳥羽健太郎,藤田高羽,津久井エンツォ,K. I. A. Sampath, 前田譲治
    • Organizer
      電子情報通信学会光通信システム研究会 OCS2020-8
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2023-01-30  

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