Esteban Martínez, ÓscarNavarrete Fernández, María CruzGonzález Cano, AgustínBernabeu Martínez, Eusebio2023-06-202023-06-2020000-8194-3848-0https://hdl.handle.net/20.500.14352/60810©2000 SPIE--The International Society for Optical Engineering. International Conference on Optical Fiber Sensors (14ª. 2000. Venecia, Italia).The degree of salinity of water is measured by determining its refractive index with a fiber-optics sensor. The physical principle of the device is the attenuation of the optical power guided by the fibre by the resonant coupling with surface plasmons of a metal layer deposited on the polished cladding of the fibre. The linearity and accuracy of the sensor make it suitable for in situ measurements.book partmetadata only access535OPticsApplied PhysicsÓptica (Física)2209.19 Óptica Física