Del Villar, IgnacioHernáez Sáenz de Zaitigui, MiguelRuiz Zamarreño, CarlosSánchez Zábal, PedroFernández Valdivielso, CarlosArregui San Martín, Francisco JavierMatías Maestro, Ignacio2018-04-052018-04-0520121559-128X (Print)2155-3165 (Electronic)10.1364/AO.51.004298https://academica-e.unavarra.es/handle/2454/28210Lossy 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.application/pdfeng© 2012 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.Thin filmsOptical resonanceFiber optic Sensorsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess