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Research on the Second Bragg Diffraction from Brillouin Dynamic Grating in an Optical Fiber and its Sensing Application

Research on the Second Bragg Diffraction from Brillouin Dynamic Grating in an Optical Fiber and its Sensing Application
光纤布里渊动态光栅二次布拉格衍射及其传感应用研究
批准号：
23656261
负责人：
HOTATE Kazuo
金额：
$2.58万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Challenging Exploratory Research
财政年份：
2011
资助国家：
日本
项目状态：
已结题
起止时间：
2011 至 --
来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656261/
关键词：
計測システム光ファイバセンサスマート材料・構造分布型センシング防災危機・管理技術

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中文摘要
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英文摘要
It has been tried to observe the second Bragg diffraction from the Brillouin dynamic grating(BDG), for which our group had discovered to be associated with stimulated Brillouin scattering. Theoretical consideration on this phenomenon has also been performed. At first, the second Bragg diffraction from a FBG has successfully been observed at the wavelength of 6nm shorter than half the first diffraction wavelength, which has met well with the theoretical estimation. It has also been calculated that the spectral width of the BDG second diffraction is narrower than 10MHz, and the experimental setup to meet the requirements has been constructed. A possible spectrum has been observed around 779. 94nm, though it has not yet been confirmed because of the repeatability.
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会议论文
ポンプ・プローブ時分割発生法を用いたBOCDA法によるブリルアンダイナミックグレーティングに基づく温度と歪の分離・分布測定
基于布里渊动态光栅的BOCDA方法采用泵浦探针分时生成法进行温度和应变的分离和分布测量
DOI： --
发表时间： 2012
期刊：
影响因子： --
作者： [芦田哲郎, 岸　眞人, 何　祖源, 保立和夫]
通讯作者： 保立和夫
Discriminative distributed measurement of strain and temperature based on Brillouin dynamic grating by BOCDA with time-division pump-probe generation scheme
基于布里渊动态光栅的 BOCDA 时分泵浦探针生成方案的应变和温度判别式分布式测量
DOI： --
发表时间： 2012
期刊：
影响因子： --
作者： [T. Ashida, M. Kishi, Z. He, and K. Hotate]
通讯作者： and K. Hotate
Functional Evolution of Fiber Optic Nerve Systems with Optical Correlation Domain Technique for Structures and Materials that can Feel Pain
  • 批准号：
    21226011
  • 项目类别：
    Grant-in-Aid for Scientific Research (S)
  • 资助金额：
    $130.46万
  • 财政年份：
    2009
  • 负责人：
    HOTATE Kazuo
  • 依托单位：
    The University of Tokyo
Fiber optic distributed sensing techniques with high spatial resolution and high performance for smart materials, structures and communication networks.
  • 批准号：
    13002003
  • 项目类别：
    Grant-in-Aid for Specially Promoted Research
  • 资助金额：
    $122.3万
  • 财政年份：
    2001
  • 负责人：
    HOTATE Kazuo
  • 依托单位：
    The University of Tokyo
Performance improvement of optical reflectometry and tomography with synthesis of optical coherence function
  • 批准号：
    09305030
  • 项目类别：
    Grant-in-Aid for Scientific Research (A)
  • 资助金额：
    $16.64万
  • 财政年份：
    1997
  • 负责人：
    HOTATE Kazuo
  • 依托单位：
    The University of Tokyo
Brillouin fiber optic gyro with various schemes for improving its sensitivity.
  • 批准号：
    08555099
  • 项目类别：
    Grant-in-Aid for Scientific Research (A)
  • 资助金额：
    $9.66万
  • 财政年份：
    1996
  • 负责人：
    HOTATE Kazuo
  • 依托单位：
    The University of Tokyo
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