Optical network element

摘要

The invention relates to an optical network element comprising a light source providing an optical signal that is fed to at least two modulators; wherein each modulator provides an optical carrier signal that is conveyed to a receiving unit; wherein the receiving unit is arranged to determine a deviation signal between the optical carrier signal and a carrier conveyed via an incoming signal and to feed the deviation signal to the modulator for adjusting the frequency and/or the phase of the optical carrier signal. Also, a corresponding method for processing data and a communication system comprising at least one optical network are suggested.