>87% Complexity Reduction at 25-GS/s, 50-Gbps and 30-dB Loss Budget LR-OFDM PON using Digital Predistortion

We demonstrate the digital predistortion (DPD) at a reduced sampling rate in high-loss-budget 10G-class LR-PONs.
$\mathrm{A} > 50$
-Gbps transmission was achieved over 30–70 km using fixed DPD with >87% complexity reduction, compared to fully optimized DPD. © 2021 The Author(s)