(Optical Society of America, 2012) Del Villar, Ignacio; Hernáez Sáenz de Zaitigui, Miguel; Ruiz Zamarreño, Carlos; Sánchez Zábal, Pedro; Fernández Valdivielso, Carlos; Arregui San Martín, Francisco Javier; Matías Maestro, Ignacio; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Gobierno de Navarra / Nafarroako Gobernua
Lossy mode resonances can be obtained in the transmission spectrum of cladding removed
multimode optical fiber coated with a thin-film. The sensitivity of these devices to changes
in the properties of the coating or the surrounding medium can be optimized by means of
the adequate parameterization of the coating refractive index, the coating thickness and the
surrounding medium refractive index (SMRI). Some basic rules of design, which enable
the selection of the best parameters for each specific sensing application, are indicated in
this work.
(IOP Publishing Ltd, 2010) Del Villar, Ignacio; Ruiz Zamarreño, Carlos; Sánchez Zábal, Pedro; Hernáez Sáenz de Zaitigui, Miguel; Fernández Valdivielso, Carlos; Arregui San Martín, Francisco Javier; Matías Maestro, Ignacio; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
A comparative study of lossy mode resonances generated by depositing two different materials
is presented. The two materials selected are indium tin oxide (ITO) and indium oxide. The two
materials present different dielectric dispersion, which leads to the generation of single-peak
lossy mode resonances with the ITO coated optical fibers and dual-peak lossy mode resonances
with the In2O3 coated optical fibers. The obvious advantage of a dual-peak based measurement
in the sensors field is enhanced by a sensitivity increase observed in sensors based on In2O3 if
compared with those based on ITO. These characteristics are analyzed both theoretically and
experimentally.
