The following paper presents a bend sensor that consists of three Bragg Gratings inside a Standard Fiber Optic for the characterization of the reflected wavelengths with respect to the radius of curvature in conditions of ...

[EN] In this thesis we propose the design and characterization of advanced optical de- vices used in coherent direct sequence optical en/decoding, also called temporal phase en/decoding, based on SSFBGs (Super-Structured ...

[EN] Phase and amplitude encoded FBG sensors are proposed. We present their experimental identification under overlapping conditions using a dual-wavelength interrogation setup to retrieve the frequency response of the ...

A new technique to investigate the spatial distribution of the reflection spectrum along fabricated long weak fiber Bragg gratings (FBG) is experimentally demonstrated, together with its potential applications for distributed ...