• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fiber-Optic Sensing Using Low-Coherence Light Sources

Research Project

Project/Area Number 09450027
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionGUNMA UNIVERSITY

Principal Investigator

YOSHINO Toshihiko  Gunma University, Faculty of Engineering, Professor, 工学部, 教授 (90013169)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Yoshitaka  Gunma University, Faculty of Engineering, Research Associate, 工学部, 助手 (30216767)
SINHA Pranay  群馬大学, 工学部, 助手 (60272259)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥8,900,000 (Direct Cost: ¥8,900,000)
Fiscal Year 1998: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1997: ¥6,100,000 (Direct Cost: ¥6,100,000)
KeywordsOptical Sensing / Acoustooptic Effect / Absolute Measurement / Strain Sensor / Temperature Sensor / Two-Mode Fiber / Time Delay Scanner / Low-Coherence Interferometry / 光ファイバ
Research Abstract

We have demonstrated the utility of the acoustooptic time delay scanning in fast absolute measurement with full electronic signal processing using simple analog circuits. In our demonstration, measurements of temperature compensated absolute strain over 1600 muepsilon in the temperature range from 20 to 60 ゚C and also the corresponding absolute temperature have been carried out with resolutions of the order of 40 IOTAepsilon and 0.7 ゚C, respectively. The cross-sensitivity between the temperature and strain is found to be below the limit of experimental resolution. We performed our experiments in a stable room temperature environment so that the scanning interferometer for signal detection was not affected by any unwanted temperature variations. However, in a situation where temperature is changing, the scanning interfer- ometer can conveniently be thermally insulated. The measurement errors stem mainly from the jitters present in the signal arising from signal generators used in producing the RF pulse and also from the signal processing electronics, and we believe that there is further scope for improving resolution by suppressing such jitters.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report

Research Products

(20 results)

All Other

All Publications (20 results)

  • [Publications] P.G.Sinha and T.Yoshino: "Absolute Measurement by an Acoustooptically scanned Fiber Interferometry : Application to Strain Measurement" Tech.Dig.CLEO/Pacific Rim'97, Makuhari, Japan. 256- (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and T.Yoshino: "Absolute Strain Demodulation with Acoustooptic Scanning Low-Coherence Fiber Interfer-ometry" IEEE Photon.Technol.Lett.9. 1137-1139 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Shinha、芳野俊彦: "低コヒーレンスファイバ干渉計-技術展望と新しい試み-" O plus E. 205. 85-91 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 芳野俊彦: "低コヒーレンス光源を用いたファイバセンシング" 精密工学会誌. 64. 1269-1273 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and T.Yoshino: "Acoustically Scanned Low-Coherence Integrogated Simultaneous Measurement of Absolute Strain and Temperature Using Highly Birefringent Fibers" J.Lightwave Technol.16. 2010-2015 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and T.Yoshino: "Simultaneous Measurement of Fiber Strain and Temperature Using Two-Mode Fiber Acousto-Optic Scanning Interferometer" Proc.SPIE. 3541. 82-89 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Wang, P.G.Sinha, and T.Yoshino: "Absolute Strain/Temperature Sensing with Highly Birefringent Two-Mode Fiber and Acous-tooptical Fiber Scanner" 13th Intl.Conf.on Optical Fiber Sensors, Kyongju, Korea. Tu4-2- (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and T.Yoshino: "Absolute Measurement by an Acoustooptically scanned Fiber Interferometry : Application to Strain Measurement" Tech.Dig.CLEO/Pacific Rim'97, Makuhari, Japan. FD3. 256 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and Yoshino: "Absolute Strain Demodulation with Acoustooptic Scanning-Low-Coherence Fiber Interferometry" IEEE Photon.Technol.Lett.Vol.9, No.8. 1137-1139 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and Yoshino: "Low-Coherence Fiber Interferometer(in Japanese)" O plus E. No.205. 85-91 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Yoshino: "Fiber-Optic Sensing Using Low-Coherence Light Sources(in Japanese)" J.Jpn.Soc.Prec.Eng.Vol.64, No.9. 1269-1273 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and Yoshino: "Acoustically Scanned Low-Coherence Integrogated Simultaneous Measurement of Absolute Strain and Temperature Using Highly Birefringent Fibers" J.Lightwave Technol.Vol.16, No.11. 2010-2015 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] P.G.Sinha and Yoshino: "Simultaneous Measurement of Fiber Strain and Temperature Using Two-Mode Fiber Acousto-Optic Scanning Interferometer" Proc.SPIE. Vol.3541. 82-89 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Wang, P.G.Sinha and Yoshino: "Absolute Strain/Temperature Sensing with Highly Birefringent Two-Mode Fiber and Acoustooptical Fiber Scanner" 13th Intl.Conf.on Optical Fiber Sensors, Kyongju, Korea.Tu4-2. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 芳野俊彦: "低コヒーレンス光源を用いたファイバセンシング" 精密工学会誌. 64. 1269-1273 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] P.G.Sinha and T.Yoshino: "Acoustically Scanned Low-Coherence Integrogated Simultaneous Measurement of Absolute Strain and Temperature Using Highly Birefringent Fibers" J.Lightwave Technol.16. 2010-2015 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] P.G.Sinha and T.Yoshino: "Simultaneous Measurement of Fiber Strain and Temperature Using Two-Mode Fiber Acousto-Optic Scanning Interferometer" Proc.SPIE. 3541. 82-89 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Wang,P.G.Sinha,and T.Yoshino: "Absolute Strain/Temperature Sensing with Highly Birefringent Two-Mode Fiber and Acous-tooptical Fiber Scanner" 13th Intl.Conf.on Optical Fiber Sensors,Kyongju,Korea. Tu4-2 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] P.G.Sinha and T.Yoshino: "Absolute Measurement by an Acoustooptically scanned Fiber Interferometry:Application to Strain Measurement" Tech.Dig.CLEO/Pacific Eim'97,Makuhari,Japan. 256- (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] P.G.Sinha and T.Yoshino: "Absolute Strain Demodulation with Acoustooptic Scanning Low-Coherence Fiber Interferometry" IEEE Photon.Technol.Lett.9. 1137-1139 (1997)

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-03-31   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi