All Optical Multichannel Regeneration Systems Based on Non Linear Effects

Summary form only given. In order to increase the performances of the today DWDM backbone networks the simultaneously elaboration of more channels is request. New optical regeneration multichannel systems, based on non linear effects, exploit the optical medium properties to perform frequency convert and noise signal compression. Four wave mixing (FWM), as non linear effect in standard silica fibres and photonic crystal fibres, can be advantageously used to implement these new devices.