Presentation 2013-01-24
Proposal and experimental verification of synthetic Brillouin optical time-domain reflectometry
Ken'ichi NISHIGUCHI, CHE-HSIEN LI, Artur GUZIK, Kinzo KISHIDA,
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Abstract(in English) We propose a novel method to improve the spatial resolution of Brillouin optical time-domain refiec-tometry (BOTDR), which is referred to as Synthetic BOTDR (S-BOTDR), and experimentally verify the resolution improvements Due to the uncertainty relation between position and frequency, the spatial resolution of a conven-tional BOTDR system has been limited to about one meter In S-BOTDR, a synthetic spectrum is obtained by combining four Brillouin spectrums measured with different composite pump lights and different composite low-pass filters We mathematically show that the resolution limit in principle for conventional BOTDR could be overcome by S-BOTDR and experimentally prove that 10-cm spatial resolution, which is much smaller than the conventional BOTDR limit, was attained by S-BOTDR
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Keyword(in English) Brillouin scattering / distributed sensing / strain / temperature sensing / synthetic spectrum
Paper # OFT2012-58
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Committee OFT
Conference Date 2013/1/17(1days)
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Registration To Optical Fiber Technology (OFT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Proposal and experimental verification of synthetic Brillouin optical time-domain reflectometry
Sub Title (in English)
Keyword(1) Brillouin scattering
Keyword(2) distributed sensing
Keyword(3) strain
Keyword(4) temperature sensing
Keyword(5) synthetic spectrum
1st Author's Name Ken'ichi NISHIGUCHI
1st Author's Affiliation Office for University-Industry Collaboration, Osaka University()
2nd Author's Name CHE-HSIEN LI
2nd Author's Affiliation Neubrex Co ,Ltd
3rd Author's Name Artur GUZIK
3rd Author's Affiliation Neubrex Co ,Ltd
4th Author's Name Kinzo KISHIDA
4th Author's Affiliation Neubrex Co ,Ltd
Date 2013-01-24
Paper # OFT2012-58
Volume (vol) vol.112
Number (no) 403
Page pp.pp.-
#Pages 6
Date of Issue