Symmetric 10 Gbps PON operating with a single laser over 31 dB of ODN Loss

We propose a fully-bidirectional and symmetrical 10 Gbps OOK PON solution, using the same wavelength in both upstream and downstream directions. Thanks to the remodulation performed by the ONU, it is able to transport 20 Gbps per wavelength using only one optical source for the full network, regardless the number of users. The system is based on direct-detection in downstream and self-coherent detection in upstream, over a standard 31 dB loss splitter-based PON. We experimentally demonstrate the proposed architecture over a realistic PON fiber plant with one wavelength and commercial components. We then discuss the potential application of our solution in a ITU-T G.989 NG-PON2 PtP-WDM architecture.