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Title: Low-coherence Michelson interferometric fiber-optic multiplexed strain sensor array : a minimum configuration
Authors: Yuan, L
Yang, J
Zhou, L 
Jin, W 
Ding, X 
Issue Date: 1-Jun-2004
Source: Applied optics, 1 June 2004, v. 43, no. 16, p. 3211-3216
Abstract: A minimum configuration Michelson fiber-optic low-coherence interferometric quasi-distributed sensing system is proposed that permits absolute length measurement in remote reflective sensor arrays. The sensor's reflective signal characteristics have been analyzed, and the relationship between intensities of light and number of sensors is given for evaluation of multiplexing potential. The proposed sensing scheme will be useful for the measurement of strain distribution. An important application may be strain monitoring in smart structures. Experimentally, four-sensor array has been demonstrated.
Keywords: Coherent light
Interferometry
Light emitting diodes
Light polarization
Light reflection
Multiplexing
Optical fibers
Optical sensors
Optical variables measurement
Strain
Publisher: Optical Society of America
Journal: Applied optics 
ISSN: 1559-128X
EISSN: 2155-3165
DOI: 10.1364/AO.43.003211
Rights: © 2004 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-16-3211. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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