%0 Journal Article
%T Micro-Displacement Sensor Based on a Hollow-Core Photonic Crystal Fiber
%A Ana Margarida Rodrigues Pinto
%A Jos¨¦ Manuel Baptista
%A Jos¨¦ Lu¨ªs Santos
%A Manuel Lopez-Amo
%A Orlando Fraz£¿o
%J Sensors
%D 2012
%I MDPI AG
%R 10.3390/s121217497
%X A sensing head based on a hollow-core photonic crystal fiber for in-reflection measurement of micro-displacements is presented. The sensing structure takes advantage of the multimodal behavior of a short segment of hollow-core photonic crystal fiber in-reflection, being spliced to a single mode fiber at its other end. A modal interferometer is obtained when the sensing head is close to a mirror, through which displacement is measured.
%K fiber optic sensor
%K photonic crystal fiber
%K micro-displacement sensor
%K modal interferometer
%U http://www.mdpi.com/1424-8220/12/12/17497