10,200 km 22/spl times/2/spl times/10 Gbit/s RZ-DQPSK dense WDM transmission without inline dispersion compensation through optical phase conjugation

Using optical phase conjugation with a polarization independent periodically-poled lithium-niobate subsystem, we demonstrate dense WDM 2/spl times/10 Gbit/s RZ-DQPSK transmission over 10,200 km of SSMF with a record accumulated dispersion exceeding 80,000 ps/nm.