device for the continuous assessment of the integrity of a fiber optic transmission network

摘要

the found refers to a device for the continuous assessment of the integrity of a fiber optic transmission network consists of a set of links "point to multipoint" each of the qhat connects a station with n users through one or more diramatori passive.the device is characterised by the fact that the links are from the user, a retroriflettore fiber bragg lattice (which is clearly the single user) and the side crevenue at least one optical passive device for extracting (or separation) of the signal retroriflesso.in view of this, a central source spectral width sufficient to fill a preset band monitoringa filter selector of each signal retroriflesso and a beacon of integrity of the fibre.