FBG-Based smart composite applications

International audienceOptical Fiber Sensors (OFS) and mostly Fiber Bragg Grating (FBG)-based optical sensors provide accurate, non-intrusive, electromagnetic interference-immune and reliable remote measurements of temperature, strain and pressure. Tiny FBG sensors, embedded into the composite material, provide in-situ informations about polymer curing (strain, temperature, degree of cure) in an elegant and non-intrusive way. Great improvements in the composite manufacturing processess such as RTM or RFI are obtained with this method. Since the FBG sensors are embedded into the composite material, they may be used for healt monitoring of the structure and impact detection to evaluate air-worthiness of a flying structure. Finally, FBGs may be used as composite extensometers or plane rosette, or embedded on CFRP reinforcement plates mostly for civil engineering applications

Temperature compensation technique for Bragg gratings in microstructured optical fibers for sensing applications

International audienc

Fiber Bragg grating photowriting in microstructured optical fibers for sensing applications based on refractive index measurement

International audienc

Cross comparison between theoretical and experimental modal field patterns in a doped-core microstructured fiber

International audienc

Sélection de modes d’ordres superieurs par réseaux de Bragg en angle inscrits dans une fibre microstructurée ; applications à la réfractométrie et à l'imagerie modale

National audienc

Damage detection in a radome sandwich material with embedded fiber optic sensors

Communication to : 4th European conference on smart structures and materials, Harrogate (Great-Britain), July 6-8, 1998SIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : 22419, issue : a.1998 n.146 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc