Pre-Distortion of an Optical Signal with Frequency Division Multiplexed Sub-Carriers

A device for pre-distorting an electrical signal comprising a plurality of frequency division multiplexed sub-carriers, intended to be converted into an optical signal transmitted over an optical transmission line and comprising a plurality of frequency division multiplexed optical sub-carriers, said device comprising a processor configured to:

• obtain a plurality of corrective factors, corresponding to the electrical sub-carriers, as a function of a plurality of values, determined for the optical sub-carriers, of a first parameter dependent on the power of said sub-carriers;
• and
• apply the corrective factors to the amplitudes of the corresponding electrical sub-carriers, so as to equalize, at the output of said optical transmission line, the values of the first parameter for the sub-carriers of the optical signal.

(canceled)

A non-transitory computer readable storage medium on which is stored a computer program comprising instructions for execution of a method for pre-distorting an optical signal when the instructions are executed by a processor, the optical signal intended to be transmitted over an optical transmission line and comprising a plurality of frequency division multiplexed optical sub-carriers, said optical signal being obtained from optical conversion of an electrical signal comprising a plurality of frequency division multiplexed electrical sub-carriers, the method comprising:

• obtaining a plurality of corrective factors corresponding to the electrical sub-carriers, as a function of a plurality of values, determined for the optical sub-carriers, of a first parameter dependent on the power of said sub-carriers;
• and
• application of the corrective factors to amplitudes of the corresponding electrical sub-carriers, so as to equalize, at the output of said optical transmission line, the values of the first parameter for the sub-carriers of the optical signal.