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Revista mexicana de física
versión impresa ISSN 0035-001X
Resumen
FLORES LLAMAS, I; KOLOKOLTSEV, O y SVYRYD, V. Refractometric sensors based on long period optical fiber gratings. Rev. mex. fis. [online]. 2006, vol.52, suppl.2, pp.75-78. ISSN 0035-001X.
In this work, results of the design of uniform and non-uniform long-period gratings are presented, with a view to being used as refractometric sensors. We found an optimal combination of the longitudinal variation of the fiber refractive index and the grating period, which increases the sensor linearity in comparison with a uniform grating, without decreasing its average sensitivity within a range of the external refractive index from 1.41 to 1.44.
Palabras llave : Long-period fiber gratings; refractometry; genetic algorithms.