Burst-Mode Equalization Strategies in 25 Gbps US-PON using Duobinary and 10G-Class APD for 20-km in C-Band

25 Gbps burst-mode upstream duobinary transmission in C-band using 10G optoelectronics and APD-based adaptive equalization receiver is analyzed and experimentally demonstrated. We show a memory-aided alternative that avoids the long training preambles (>2600 bits) needed in commonly proposed memoryless approaches.