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Development of a Random modulated CW LIDAR for measuring atmospheric molecules related to earth warming

Research Project

Project/Area Number 14550045
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionAriake National College of Technology

Principal Investigator

UCHIUMI Michihiro  Ariake National College of Technology, Professor, 電子情報工学科, 教授 (10213430)

Co-Investigator(Kenkyū-buntansha) J. Vasa N.  Kyushu University, Faculty of Interdisciplinary, Associate professor, 大学院・総合理工学研究院, 助教授 (40294904)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2004: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2002: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsCW laser / pseudo random modulated / Earth warming molecules / laser radar / LIDAR / Differential Absorption LIDAR / CO2 / water vapor
Research Abstract

The aim of this research is to investigate theoretically and experimentally the possibility of realization of RM-CW LIDARs, pseudo-randomly modulated CW laser radars, for measuring the atmospheric gas molecules related to earth warming and establish an RM-CW LIDAR mainly active in the wavelength region of the near infra-red. As the results of the theoretical simulation, it is found that it is possible to make an RM-CW LIDAR for atmospheric aerosol and water vapor. For the DIAL, differential absorption LIDAR, a laser emitting system with two CW lasers was made. A receiver is constructed with a 20cm diameter telescope, a PMT and an interference filter. In order to modulate the CW laser, the AOM devices were used. The CW lasers were tuned to the absorption lines of water vapor. The laser modulation was performed by a data generator based on the maximum shift register sequence.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (13 results)

All 2005 2004 2003 Other

All Journal Article (9 results) Publications (4 results)

  • [Journal Article] 擬似ランダム変調CWライダーの昼間計測の検討2005

    • Author(s)
      内海通弘, 野原明信
    • Journal Title

      有明工業高等専門学校紀要 41号

      Pages: 137-141

    • NAID

      110004688766

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Study on a Daytime Measurement of Atmospheric Gases by Pseudo Random Modulated CW LIDAR2005

    • Journal Title

      Research Reports of the Ariake National College of Technology, (in Japanese) 41

      Pages: 137-141

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] RM-CWライダーにおける信号処理の改善2004

    • Author(s)
      内海通弘
    • Journal Title

      有明工業高等専門学校紀要 40号

      Pages: 81-85

    • NAID

      110004302338

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improvement on a Signal Processing in a Data Analysis in a Pseudorandom Modulated Continuous Wave LIDAR2004

    • Author(s)
      Michihiro Uchiumi
    • Journal Title

      Research Reports of the Ariake National College of Technology, (in Japanese) 40

      Pages: 81-85

    • NAID

      110004302338

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] M系列擬似ランダム変調CWレーザレーダの特性解析2003

    • Author(s)
      内海通弘
    • Journal Title

      有明工業高等専門学校紀要 39号

      Pages: 111-115

    • NAID

      110004302319

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Development of a Tunable Laser Source for DIAL measurements of the Atmospheric CO_2 and CH_42003

    • Author(s)
      M.Fujiwara, N.J.Vasa, S.Yokoyama, M.Uchiumi, M.Maeda, O.Uchino
    • Journal Title

      Proceedings of the Third Asian Pacific Laser Symposium 3

      Pages: 478-481

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Tuning of a Ti3+:sapphire laser by an electro-optic beam deflection method.2003

    • Author(s)
      N.J.Vasa, M.Fujiwara, S.Yokoyama, M.Uchiumi, M.Maeda
    • Journal Title

      Applied Optics 42,27

      Pages: 5512-5516

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An Analysis on Performance of a Lidar with a Continuous Wave Laser Psuedo randomly Modulated by the Maximum Shift Register Sequence2003

    • Author(s)
      Michihiro Uchiumi
    • Journal Title

      Research Reports of the Ariake National College of Technology, (in Japanese) 39

      Pages: 111-115

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Tuning of a Ti3+:sapphire laser by an electro-optic beam deflection method2003

    • Author(s)
      N.J.Vasa, M.Fujiwara, S.Yokoyama, M.Uchiumi, M.Maeda
    • Journal Title

      Applied Optics 42,27

      Pages: 5512-5516

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] 内海通弘: "RM-CWライダーにおける信号処理の改善"有明工業高等専門学校紀要. 40号. 81-85 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.J.Vasa, M.Fujiwara, S.Yokoyama, M.Uchiumi, M.Maeda: "Tuning of a Ti3+: sapphire laser by an electro-optic beam deflection method."Applied Optics. 42,27. 5512-5516 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 内海通弘: "M系列擬似ランダム変調CWレーザレーダの特性解析"有明工業高等専門学校紀要. 39号. 111-115 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Fujiwara, N.J.Vasa, s.Yokoyama, M.Uchiumi, M.Maeda, O.Uchiuno: "Development of a Tunable Laser Source for DIAL measurements of the Atmospheric CO_2 and CH_4"Proceedings of the Third Asian Pacific Laser Symposium. 3. 478-481 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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