Data-dependent phase coding for suppression of ghost pulses in optical fibers

A novel data-dependent phase-encoding scheme for mitigation of intrachannel four-wave mixing is introduced. The scheme relies on energy redistribution among 1-bits, which reduces leakage of optical power into 0-bits time slots and is applicable for a wide range of input powers in return-to-zero transmission. The introduced data-dependent coding scheme increases the Q factor by as much as 4 dB.