Presentation	1998/9/10 New Technique for Distributed Strain Measurement in Optical Fibers with Very High Sensitivity by Making Use of Rayleigh Backscattering Yahei Koyamada,
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Abstract(in English)	Rayleigh backscatter signal from a single-mode fiber under coherent pulse excitation displays a jagged appearance due to a speckle-like phenomenon caused by the addition of a vast number of scattered waves. This paper proposes a new technique to measure distributed stain in fibers by making use of the jagged Rayleigh backscatter trace. Principle of the measurement and results of computer simulations are presented, showing that the proposed technique can measure very small strain less than 10^<-6>.
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Keyword(in English)	Optical fiber sensors / strain sensing / distributed sensing / OTDR
Paper #	OFT98-23
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Conference Information
Committee	OFT
Conference Date	1998/9/10(1days)
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Paper Information
Registration To	Optical Fiber Technology (OFT)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	New Technique for Distributed Strain Measurement in Optical Fibers with Very High Sensitivity by Making Use of Rayleigh Backscattering
Sub Title (in English)
Keyword(1)	Optical fiber sensors
Keyword(2)	strain sensing
Keyword(3)	distributed sensing
Keyword(4)	OTDR
1st Author's Name	Yahei Koyamada
1st Author's Affiliation	Department of Media & Telecommunications Engineering Faculty of Engineering, Ibaraki University()
Date	1998/9/10
Paper #	OFT98-23
Volume (vol)	vol.98
Number (no)	265
Page	pp.pp.-
#Pages	5
Date of Issue