@ARTICLE{Marzejon_Marcin_Fibre-optic_2019,
 author={Marzejon, Marcin and Karpienko, Katarzyna and Mazikowski, Adam and Jędrzejewska-Szczerska, Małgorzata},
 volume={vol. 26},
 number={No 3},
 journal={Metrology and Measurement Systems},
 pages={561-568},
 howpublished={online},
 year={2019},
 publisher={Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation},
 abstract={In this paper, we present a fibre-optic sensor for simultaneous measurement of refractive index and thickness of liquid layers.We designed an experimental low-coherence setup with two broadband light sources and an extrinsic fibre-optic Fabry–Pérot interferometer acting as the sensing head.We examined how the refractive index of a liquid film and its thickness affect spectrum at the output of a fibre-optic interferometer. We performed a series of experiments using two light sources and only one sensing head. The spectra were collected in ranges of 1220÷1340 nm and 1500÷1640 nm. The obtained results show that using two spectra recorded simultaneously for two wavelength ranges enables to determine thickness in a range of 50÷500 μm, and refractive index of a liquid film in a range of 1:00÷1:41 RIU using only one sensing head.},
 type={Article},
 title={Fibre-optic sensor for simultaneous measurement of thickness and refractive index of liquid layers},
 URL={http://czasopisma.pan.pl/Content/113103/PDF/10_MMS_3_INTERNET.pdf},
 doi={10.24425/mms.2019.129584},
 keywords={fibre-optic, sensors, interferometry, Fabry–Pérot interferometer},
}