Abstract
Theoretical and experimental work is reported on a distributed
polarimetric fiber optic sensor designed for application in capillary gas
chromatography. The emphasis is made on the modeling of the polarization
mode coupling mechanism in relation to the vapor zone distribution.
Conditions are established to quantify the vapors' amount in the capillary
from a Fourier analysis of the time-modulated optical signal. The model
predicts an exponential temporal decay of the modulation amplitude for any
initial vapor zone distribution at the injection and the quantification is
related to the pre-exponential factor.
© 2011 IEEE
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