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We demonstrate the first OLT-side optical Nyquist filtering of legacy 10G OOK signals, doubling both the reach and split ratios of dynamic >10Gb/s OFDMA λ-overlays for mobile backhaul over PON, without any ONU-side optics upgrades.
We experimentally demonstrate the first coherent 40Gb/s OFDMA-PON over 100km and 130km straight SSMF with 1:128 and 1:64 passive splits, respectively. By satisfying heterogeneous reach/split requirements, the approach addresses key aspects of optical access/metro convergence.
A 2.5G/10G co-existing OFDMA-PON is demonstrated through 20km SSMF with 31dB loss budget. Only one receiver at the OLT and low-speed transceiver at the 2.5G ONUs are required, thereby reducing system complexity and cost.
A 43.6 Gb/s downstream OFDMA-PON is demonstrated using optical single-side band 64/32/16QAMOFDM signals and direct-detection receiver through 20 km SSMF. Only one photodiode/OFDM receiver is required at the ONU, thereby significantly reducing system implementation complexity and cost.
For the first time, we demonstrate colorless 44-Gb/s/λ, upstream OFDMA-PON transmission with polarization-insensitive, source-free ONUs. Superior performance is reported over 20 km SSMF plus 1:32 split, featuring OLT-side coherent detection and no ONU-side temperature control.
We experimentally demonstrate 36-Gb/s source-free single-wavelength upstream OFDMA-PON transmission, enabled by ONU carrier suppression and coherent reception at the OLT. A BER ≪10−3 is reported over 100km SSMF and a 1:32 optical split.
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