Systems and methods for carrier phase recovery

A digital receiver configured to process a polarization multiplexed carrier from a communication network, the polarization multiplexed carrier including a first polarization and a second polarization, the receiver comprising:

• a first lane for transporting a first input signal of the first polarization;
• a second lane for transporting a second input signal of the second polarization;
• a dynamic phase noise estimation unit disposed within the first lane and configured to determine a phase estimate of the first input signal;
• a first carrier phase recovery portion configured to perform phase recovery on the first polarization based on a combination of the first input signal and a function of the determined phase estimate of the first input signal;
• and
• a second carrier phase recovery portion comprising a fixed phase rotation estimation unit, wherein the second carrier phase recovery portion is configured to combine second input signal with the function of the determined phase estimate of the first input signal to form a combined second signal, and (ii) perform phase recovery on the combined second signal based on a phase rotation of the second polarization with respect to the first polarization.