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Development of an all cryogenic ultra-stable microwave oscillator

Research Project

Project/Area Number 26246038
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field General applied physics
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Ikegami Takeshi  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 上級主任研究員 (60356417)

Co-Investigator(Kenkyū-buntansha) 渡部 謙一  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (50358389)
柳町 真也  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (70358216)
高見澤 昭文  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (50462833)
Research Collaborator HARTNETT John  豪州アデレード大学
Project Period (FY) 2014-06-27 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥41,990,000 (Direct Cost: ¥32,300,000、Indirect Cost: ¥9,690,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2014: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Keywords低温サファイア発振器 / マイクロ波発振器 / セシウム一次周波数標準器 / 原子時計 / 周波数安定度 / 局部発振器 / パルス管冷凍機 / 振動抑制クライオスタット / アラン分散 / 超精密計測 / 制御工学 / 計測工学
Outline of Final Research Achievements

Three sets of cryogenic sapphire-resonator oscillators (CSOs), have been developed to operate using cryo-refrigerators and low-vibration cryostats. The Allan deviation was evaluated through the three-cornered hat method, and was better than 2×10-15 for averaging times of 1 s to 1 day. Autonomous and continuous operation over a year without any frequency unlocking became possible. The first CSO is now used with our cesium atomic fountain frequency standard, which has achieved a nearly quantum-projection-noise-limited frequency stability of 8×10-14 at 1 second.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report

Research Products

(16 results)

All 2018 2017 2016 2015 2014

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results) Book (1 results)

  • [Journal Article] 精密位相雑音測定におけるサンプリングクロックの影響2016

    • Author(s)
      平野育、柳町真也、池上健、高見澤昭文
    • Journal Title

      電気学会論文誌A(基礎・材料・共通部門誌)

      Volume: 136 Pages: 455-457

    • NAID

      130005160681

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Autonomous cryogenic sapphire oscillators employing low vibration pulse-tube cryocoolers at NMIJ2016

    • Author(s)
      T.Ikegami, K.Watabe, S.Yanagimachi, A.Takamizawa, and J.G.Hartnett
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 印刷中

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Improved frequency measurement of the 1S0-3P0 clock transition in 87Sr using a Cs fountain clock as a transfer oscillator2015

    • Author(s)
      Takehiko Tanabe, Daisuke Akamatsu, Takumi Kobayashi, Akifumi Takamizawa, Shinya Yanagimachi, Takeshi Ikegami, Tomoya Suzuyama, Hajime Inaba, Sho Okubo, Masami Yasuda, Feng-Lei Hong, Atsushi Onae, and Kazumoto Hosaka
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 84 Issue: 11 Pages: 115002-115002

    • DOI

      10.7566/jpsj.84.115002

    • NAID

      210000133739

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Ultra-Stable Microwave Oscillator using a Cryogenic Sapphire Crystal Towards the Most Stable Oscillator on Earth2015

    • Author(s)
      池上 健、渡部謙一
    • Journal Title

      Cryogenic Egineering

      Volume: 50 Issue: 6 Pages: 322-329

    • DOI

      10.2221/jcsj.50.322

    • NAID

      130005087341

    • ISSN
      0389-2441, 1880-0408
    • Related Report
      2015 Annual Research Report
  • [Journal Article] Atomic Fountain Clock With Very High Frequency Stability Employing a Pulse-Tube-Cryocooled Sapphire Oscillator2014

    • Author(s)
      A.Takamizawa, S.Yanagimachi, T.Tanabe, K.Hagimoto, I.Hirano, K.Watabe, T.Ikegami, and J.G.Hartnett
    • Journal Title

      IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

      Volume: 61 Pages: 1463-1468

    • DOI

      10.1109/tuffc.2014.3060

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] Recent Progress of Development of Cesium Fountain Pri- mary Frequency Standard NMIJ -F22018

    • Author(s)
      A.Takamizawa, S.Yanagimachi, K.Hagimoto, I.Hirano, T.Ikegami
    • Organizer
      32nd European Frequency and Time Forum 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電気的冷却方式による低温サファイア発振器の特性2018

    • Author(s)
      池上 健、渡部 謙一、柳町 真也、高見澤 昭文、萩本 憲、ハートネット ジョン
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 池上 健、渡部謙一、柳町真也、高見澤昭文、平野 育、萩本 憲、ハートネット ジョン2017

    • Author(s)
      低振動パルス管冷凍機を用いた自律型低温サファイア発振器の開発
    • Organizer
      NMIJ成果発表会
    • Place of Presentation
      産業技術総合研究所(茨城県つくば市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] 2台の電気的冷却方式低温サファイア発振器間の周波数安定度測定2016

    • Author(s)
      池上 健、渡部謙一、柳町真也、高見澤昭文、平野 育、萩本 憲、ハートネット ジョン
    • Organizer
      第63回応用物理学会春季学術講演会
    • Place of Presentation
      東工大大岡山キャンパス(東京都目黒区)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] ストロンチウム原子の時計遷移の絶対周波数測定 -SI秒との比較における不確かさの低減-2016

    • Author(s)
      田邊健彦,赤松大輔,小林拓実,高見澤昭文,柳町真也,池上 健,鈴山智也,稲場肇,大久保章,安田正美,洪鋒雷,大苗敦,保坂一元
    • Organizer
      第63回応用物理学会春季学術講演会
    • Place of Presentation
      東工大大岡山キャンパス(東京都目黒区)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 10MHz発振器の低オフセット領域における位相雑音2016

    • Author(s)
      平野 育、柳町真也、池上 健、高見澤昭文、鈴山智也、和田雅人
    • Organizer
      電気学会基礎・材料・共通部門大会
    • Place of Presentation
      九州工業大学戸畑キャンパス(福岡県北九州市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Development of cryogenic sapphire oscillators using cryocoolers at NMIJ2015

    • Author(s)
      T.Ikegami, K.Watabe, S.Yanagimachi, A.Takamizawa, and J.G.Hartnett
    • Organizer
      8th Symposium on Frequency Standards and Metrology
    • Place of Presentation
      ポツダム(ドイツ)
    • Year and Date
      2015-10-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toward the full evaluation of the cesium fountain NMIJ-F22015

    • Author(s)
      A.Takamizawa, S.Yanagimachi, K.Hagimoto, I.Hirano, K.Watabe, T.Ikegami, J.G.Hartnett
    • Organizer
      8th Symposium on Frequency Standards and Metrology
    • Place of Presentation
      ポツダム(ドイツ)
    • Year and Date
      2015-10-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of the cesium fountain primary frequency standard NMIJ-F22015

    • Author(s)
      A.Takamizawa, S.Yanagimachi, K.Hagimoto, I.Hirano, K.Watabe, T.Ikegami, J.G.Hartnett
    • Organizer
      Emerging Scientist Workshop
    • Place of Presentation
      大田市(韓国)
    • Year and Date
      2015-08-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 振動抑制冷凍機を用いた低温サファイア発振器の周波数安定度の評価2015

    • Author(s)
      池上 健,渡部 謙一,柳町 真也,平野 育,萩本 憲,高見澤 昭文,ジョン G. ハートネット
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Book] わかる!原子時計のしくみ2016

    • Author(s)
      池上 健
    • Total Pages
      143
    • Publisher
      CQ出版社
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2014-11-20   Modified: 2019-03-29  

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