Obiettivo Optical fibre is the dominant medium for telecommucation systems. The objective of the project is to develop a prototype instrument for the characterization of optical fibres and preforms, overcoming the diffraction effects intrinsic of the methods presently recommended by CCITT (transmitted near field and refractive near field). This will allow improved on line assessment of the quality of the fibre. This instrument will be based on the Photon Scanning Tunnelling Microscope suitably modified to provide capability for local (nanometric scale) fluorescence measurement, and for compatibility with the cylindrical geometry of fibres. This instrument will allow the simultaneous measurement of both refractive index and dopant profiles. The specifications of the prototype to be developed are as follows: - 50 nm spatial resolution of the refractive index profile, within 2E{-4} precision; - sensitivity of 100 ppm in the measurement of dopant profiles across the core; - user friendliness (sample preparation time less than 5 minutes) Campo scientifico engineering and technologymaterials engineeringfibersnatural sciencesphysical sciencesopticsmicroscopynatural sciencesmathematicspure mathematicsgeometrynatural sciencesphysical sciencesopticsfibre opticsnatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programma(i) FP3-MAT - Specific research and technological development programme (EEC) in the field of measurements and testing, 1990-1994 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore Université de Bourgogne Contributo UE Nessun dato Indirizzo 6 boulevard Gabriel 21000 Dijon Francia Mostra sulla mappa Costo totale Nessun dato Partecipanti (4) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto ARTT - Association for Research Technology and Training Grecia Contributo UE Nessun dato Indirizzo 1,Malikouti Street 71110 Heraklion Mostra sulla mappa Costo totale Nessun dato National Physical Laboratory (NPL) Regno Unito Contributo UE Nessun dato Indirizzo Queen's Road TW11 0LW Teddington Mostra sulla mappa Costo totale Nessun dato SWISS CENTER FOR ELECTRONICS AND MICROTECHNOLOGY S.A. Svizzera Contributo UE Nessun dato Indirizzo 1,Rue Jaquet Droz 1 2007 NEUCHATEL Mostra sulla mappa Costo totale Nessun dato Société de Produits pour l'Industrie,la Recherche et l'Analyse de Laboratoire Francia Contributo UE Nessun dato Indirizzo Rue des Mardors 25160 Couternon Mostra sulla mappa Costo totale Nessun dato