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Development and evaluation of two-mode squeezed light source for quantum radar research

Research Project

Project/Area Number 17K05080
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Optical engineering, Photon science
Research InstitutionTamagawa University

Principal Investigator

MASADA Genta  玉川大学, 工学部, 教授 (80439538)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords量子レーダ / 量子エンタングルメント / スクイーズド光 / 量子レーダー / 2モードスクイーズド光 / 2モードスクイーズド光 / 量子イルミネーション
Outline of Final Research Achievements

In this research, we have developed a two-mode squeezed light source, which is indispensable for studying quantum radar, by using the method of quantum optics experiment. After that, quantum entanglement between light waves in two-mode squeezed light was verified. We assume the use of quantum radar under various weather conditions, and attach importance to the influence of fog as one of the factors that obstruct visibility. A laser beam was propagated in an artificial fog with a length of 10 meters, and the propagation characteristics of the light wave were investigated using an optical interferometer. As a result, it was found that the main effect of uniform fog on light wave propagation is attenuation of energy, which can be modeled as optical loss.

Academic Significance and Societal Importance of the Research Achievements

量子レーダーは2モードスクイーズド光の強い量子相関を利用することにより、光損失や光雑音といった擾乱が大きい環境においても、従来のレーダー技術よりも高い検知性能を発揮することが期待される。量子レーダーシステムが完成した場合、雨や霧などの悪天候条件での使用に耐えうることが期待される。このような全天候型のレーダーを応用する候補としては、まず自動車に搭載するセンサが考えられる。量子レーダーは近年注目されている自動車の自動運転化を支える一つの技術になるものと期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2020 2019 2018 2017

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (3 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] A study of laser beam propagation through 10 meters length a fog2019

    • Author(s)
      Genta Masada
    • Journal Title

      Tamagawa University Quantum ICT Research Institute Bulletin

      Volume: 9 Pages: 41-43

    • NAID

      40022193859

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 量子レーダカメラに向けた高出力2モードスクイズド光源2019

    • Author(s)
      政田元太
    • Journal Title

      光アライアンス

      Volume: 30 Pages: 31-35

    • NAID

      40021922345

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Laser beam interference propagating through a foggy atmosphere2018

    • Author(s)
      Genta Masada
    • Journal Title

      Tamagawa University Quantum ICT Research Institute Bulletin

      Volume: 8 Pages: 31-34

    • NAID

      40021887462

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-classical correlation of two-mode squeezed light in asymmetric optical-loss conditions2018

    • Author(s)
      Genta Masada
    • Journal Title

      Proceedings of SPIE, Quantum Communications and Quantum Imaging XVI

      Volume: 10771 Pages: 18-18

    • DOI

      10.1117/12.2321044

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Non-Classical Correlation of Asymmetric Two-Mode Squeezed Vacuum states2017

    • Author(s)
      Genta Masada
    • Journal Title

      Tamagawa University Quantum ICT Research Institute Bulletin

      Volume: 7 Pages: 33-38

    • NAID

      40021590094

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Verification of quantum entanglement of two-mode squeezed light source towards quantum radar and imaging2017

    • Author(s)
      Genta Masada
    • Journal Title

      Proc. SPIE, Quantum Communications and Quantum Imaging XV

      Volume: 10409 Pages: 24-24

    • DOI

      10.1117/12.2273585

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 霧を使ったレーザー光の干渉実験2020

    • Author(s)
      政田元太
    • Organizer
      第18回量子情報ミニワークショップ
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Non-classical correlation of two-mode squeezed light in asymmetric optical-loss conditions2018

    • Author(s)
      Genta Masada
    • Organizer
      SPIE, Optics and Photonics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Verification of quantum entanglement of two-mode squeezed light source towards quantum radar and imaging2017

    • Author(s)
      Genta Masada
    • Organizer
      SPIE Optics and Photonics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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