N. A. Ushakov, L. B. Liokumovich
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Microdisplacement sensors based on the extrinsic fi ber FabryPerot interferometer can be used in various physical quantities sensors, spurring extensive studies in the fi eld. In this article we present novel methods to enhance the operational possibilities of such sensors, such as higher resolution, multiplexing and increased sampling rate. The consideration includes signal processing approaches proposed for both single and multiplexed sensor systems and experimental demonstration of the developed techniques.
Keywords: extrinsic fi ber Fabry-Perot interferometer, fi ber optic sensors, picometer resolution, wavelength-domain interferometry, spectral measurements.
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