Signal Processing Algorithms for Down-Stream Traffic in Next Generation 10 Gbit/s Fixed-Grid Passive Optical Networks

<table>Architecture of coherent 10 Gbit/s long haul WDM-PON employing DP-QPSK downstream signals.</table>

Advances in OptoElectronics

Figure 3: Signal Processing Algorithms for Down-Stream Traffic in Next Generation 10 Gbit/s Fixed-Grid Passive Optical Networks 