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Title: Enhanced multiplexing capacity of low-coherence reflectometric sensors with a loop topology
Authors: Yuan, Libo
Jin, Wei
Zhou, Limin
Hoo, Y. L.
Demokan, Suleyman
Subjects: Fiber-optic sensors
Low-coherence reflectometry
Quasidistributed sensors
Strain sensors
Issue Date: Aug-2002
Publisher: IEEE
Source: IEEE photonics technology letters, Aug. 2002, v. 14, no. 8, p.1157-1159.
Abstract: A novel scheme for enhancing the multiplexing capacity of low-coherence reflectometric sensors is demonstrated. The scheme is based on connecting the sensing elements in serial in a loop configuration, allowing each of the sensors within the array being interrogated twice from opposite directions. The bi-directional interrogation doubles the multiplexing capacity while maintains the signal to noise ratio. The double interrogation scheme would allow the normal operation of the sensor array even when one end of the transmission fiber were broken, improving the reliability of the sensing system for large-scale structural monitoring.
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Type: Journal/Magazine Article
DOI: 10.1109/LPT.2002.1022001
ISSN: 1041-1135
Appears in Collections:EE Journal/Magazine Articles
ME Journal/Magazine Articles

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