Presentation 2017-08-31
Detection of shortest-ever strain by slope-assisted BOCDR
Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) To enable high-speed distributed strain/temperature measurement along optical fibers, we have developed a new configuration of Brillouin optical correlation-domain reflectometry (BOCDR)―named slope-assisted BOCDR (SA-BOCDR). Its basic operation has been investigated, and besides, it has been proved that strained/heated sections even shorter than the nominal spatial resolution can be detected. Although this “beyond-nominal-resolution” effect is an attractive advantage for practical applications, the detection of strained/heated section shorter than the current world record has not been demonstrated yet. In this work, by exploiting this special effect of SA-BOCDR, we demonstrate the detection of 2-mm-long―shortest ever―strained section in sensing fiber.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Brillouin scatteringDistributed optical fiber sensors
Paper # OFT2017-25
Date of Issue 2017-08-24 (OFT)

Conference Information
Committee OFT / OCS / LSJ
Conference Date 2017/8/31(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Masayuki Shigematsu(Sumitomo Electric Industries) / Itsuro Morita(KDDI Research)
Vice Chair
Secretary (Furukawa Electric Industries) / (NTT) / (Sumitomo Electric Industries)
Assistant Ikutaro Ogushi(NTT) / Katsuki Suematsu(Furukawa Electric Industries)

Paper Information
Registration To Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / The Laser Society of Japan
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Detection of shortest-ever strain by slope-assisted BOCDR
Sub Title (in English)
Keyword(1) Brillouin scatteringDistributed optical fiber sensors
1st Author's Name Heeyoung Lee
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
2nd Author's Name Yosuke Mizuno
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
3rd Author's Name Kentaro Nakamura
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
Date 2017-08-31
Paper # OFT2017-25
Volume (vol) vol.117
Number (no) OFT-197
Page pp.pp.5-8(OFT),
#Pages 4
Date of Issue 2017-08-24 (OFT)