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3×ONU coherent OFDMA-PON uplink transmission is demonstrated using a 3 Gbaud realtime IFDMA transmitter. The digital remote laser synchronization technique enables no-guard-band subcarrier multiplexing with free-running ∼100 kHz linewidth sources over a 40 km SMF link.
DSP-enabled remote carrier synchronization technique for coherent OFDMA-based PONs is investigated by using 12Gsps real-time IFDMA-PON transmitter prototype with a 3kHz linewidth free-running source.
Time- and Wavelength-Division Multiplexed (Multiple Access) TWDM(A) PONs are currently under standardization by ITU-T. Energy efficient schemes proposed for TDM(A) PON can still be applied to TWDM(A) PON for the subset of Optical Network Units (ONUs) transmitting and receiving at the same wavelength. However, because of the presence of multiple transmitters and receivers at the Optical Line Terminal...
We present a novel bandwidth-elastic and power-efficient coherent NG-PON based on coherent interleaved frequency division multiple access (IFDMA) and experimentally demonstrate the 2xONUs uplink transmission, exhibiting capabilities of the elastic bandwidth provisioning and CFO compensation.
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