Effect of the finite extinction ratio of an electro-optic modulator on the performance of distributed probe-pump Brillouin sensorsystems
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(Published version)
Date
2003
Authors
Afshar Vahid, S.
Ferrier, G.
Bao, X.
Chen, L.
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Journal article
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Optics Letters, 2003; 28(16):1418-1420
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Shahraam Afshar V., Graham A. Ferrier, Xiaoyi Bao, Liang Chen
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Abstract
The effect of the finite extinction ratio of an electro-optic modulator (EOM) on the Brillouin frequency measurement of a distributed Brillouin-based fiber optic sensor is studied. An EOM with a finite extinction ratio limits the application of Brillouin optical time domain analysis in a distributed Brillouin-based fiber optic sensor. This results in confusion in specifying the location of the strained region and in error in detecting the Brillouin frequency and hence in strain and temperature measurement. © 2003 Optical Society of America.
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This paper was published in Optics Letters 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/abstract.cfm?URI=ol-28-16-1418. 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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Copyright © 2003 Optical Society of America