4 × 240 Gb/s Dense WDM and PDM Kramers-Kronig Detection with 125-km SSMF Transmission
17 September 2017
We demonstrate dense wavelength- and polarization-multiplexed (WDM/PDM) 125-km standard single-mode fiber (SSMF) transmission using Kramers-Kronig receivers. The 4 × 240-Gb/s system at 5.3 bits/s/Hz on a 37.5-GHz grid is tolerant to a ±9-GHz filter frequency drift.