Systems and methods for equalization enhanced phase noise (eepn) tracking and compensation

A method, comprising:

• calculating, by an equalization enhanced phase noise (EEPN) compensation system of a coherent optical receiver, at least one metric,
• wherein the coherent optical receiver includes a chromatic dispersion compensation system configured to digitally compensate for chromatic dispersion relating to a signal, and a carrier phase recovery system configured to digitally recover a carrier phase associated with the signal, and
• wherein the calculating is based on information that is downstream of the chromatic dispersion compensation system;
• and
• utilizing, by the EEPN compensation system, the at least one metric to perform EEPN compensation relating to the signal upstream of the carrier phase recovery system.

A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processing system of a coherent optical receiver including a processor, facilitate performance of operations, the operations comprising:

• calculating at least one metric,
• wherein the coherent optical receiver includes a chromatic dispersion compensation system configured to digitally compensate for chromatic dispersion relating to a signal, and a carrier phase recovery system configured to digitally recover a carrier phase associated with the signal, and
• wherein the calculating is based on information that is downstream of the chromatic dispersion compensation system;
• and
• utilizing the at least one metric to perform edgeless EEPN compensation relating to the signal upstream of the carrier phase recovery system.