Demonstration of 3×341-Gb/s PDM-OFDM- 256 Iterative Polar Modulation Signals over 495-km of a Field Deployed WDM System
01 January 2014
We report a field demonstration of transmission of 1.44 Tb/s over the Korean Advanced Research Network (KOREN) using three 341-Gb/s PDM-OFDM signals with 256- iterative-polar-modulation. The dispersion managed commercial wavelength-division multiplexed (WDM) transmission system, deployed on legacy fiber and supporting WDM transmission on a 100-GHz grid, covered the distance of 248-km between Daejeon and Seoul. Using a loop-back configuration, the three channels were transmitted over a total distance of 495-km. Successful transmission was achieved by adopting both a digital signal processing (DSP) based inter-symbol-interference (ISI) compensation technique and an enhanced soft-decision decoder for the coded modulation.
