DWDM 43 Gbit/s DPSK transmission over 1200 km with no inline dispersion compensation (Optical communication)

Error-free dense wavelength division multiplexed (DWDM) transmission of 43 Gbit/s DPSK signals transmitted and detected by a commercial transponder is demonstrated over 1200 km of NZ-DSF with 50 GHz channel spacing and no inline dispersion compensation. Custom slope-matched dispersion compensation modules provide terminal-only compensation, facilitating a simple system configuration with performance >3 dB above the forward error correction threshold.