Presentation	2010-01-21 Signal to Noise Improvement Ratio for Coded PSP-BOTDA Daisuke Uchiyama, Tsuneo Horiguchi, Hiroshi Ando, Yoko Okumoto, Sasaki Takashi /, Yu Sawai,
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Abstract(in English)	We study Coded Phase Shift Pulse Brillouin Optical-fiber Time Domain Analysis (Coded PSP-BOTDA) for the measurement of distributed strain in optical fiber. PSP-BOTDA employs a pair of pulsed pump. The 1^ pulse is to excite the acoustic phonons while the following 2^ pulse is to locate fiber strain with high spatial resolution. For the Coded PSP-BOTDA, the 2^ pulse is transformed to the sequence of Golay-coded pulses. This results in the improvement in signal-to-noise ratio of the detected signal. In this paper, we analyze and experiment on the relationship between Golay code length and signal to noise improvement ratio.
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Keyword(in English)	BOTDA / Golay code / Brillouin amplification / Distributed optical fiber sensing
Paper #	OFT2009-68
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Committee	OFT
Conference Date	2010/1/14(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)	Signal to Noise Improvement Ratio for Coded PSP-BOTDA
Sub Title (in English)
Keyword(1)	BOTDA
Keyword(2)	Golay code
Keyword(3)	Brillouin amplification
Keyword(4)	Distributed optical fiber sensing
1st Author's Name	Daisuke Uchiyama
1st Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology()
2nd Author's Name	Tsuneo Horiguchi
2nd Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology
3rd Author's Name	Hiroshi Ando
3rd Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology
4th Author's Name	Yoko Okumoto
4th Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology
5th Author's Name	Sasaki Takashi /
5th Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology
6th Author's Name	Yu Sawai
6th Author's Affiliation	Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Shibaura Institute of Technology
Date	2010-01-21
Paper #	OFT2009-68
Volume (vol)	vol.109
Number (no)	377
Page	pp.pp.-
#Pages	6
Date of Issue