Presentation 2015-02-19
Brillouin Optical Correlation Domain Reflectometry with Lock-in Detection Scheme
Yuguo YAO, Masato KISHI, Kazuo HOTATE,
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Abstract(in English) We have proposed a Brillouin optical correlation domain reflectometry (BOCDR) with lock-in detection scheme. The weak and noisy spontaneous Brillouin signal is output from the electrical spectrum analyzer as an analog signal, and detected synchronously and amplified using a lock-in amplifier. By further introducing phase modulation into the system to suppress the background optical noise, and using large modulation amplitude with appropriate filtering, the performance of the system is enhanced significantly. A 4cm spatial resolution is realized over 100m measurement range.
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Keyword(in English) Brillouin scattering / Optical fiber sensing / BOCDR / Lock-in detection
Paper # OCS2014-110,OFT2014-67,OPE2014-212
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Committee OFT
Conference Date 2015/2/12(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
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Title (in English) Brillouin Optical Correlation Domain Reflectometry with Lock-in Detection Scheme
Sub Title (in English)
Keyword(1) Brillouin scattering
Keyword(2) Optical fiber sensing
Keyword(3) BOCDR
Keyword(4) Lock-in detection
1st Author's Name Yuguo YAO
1st Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo()
2nd Author's Name Masato KISHI
2nd Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo
3rd Author's Name Kazuo HOTATE
3rd Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo
Date 2015-02-19
Paper # OCS2014-110,OFT2014-67,OPE2014-212
Volume (vol) vol.114
Number (no) 452
Page pp.pp.-
#Pages 6
Date of Issue