Performance of upstream optical repeaters using semiconductor optical amplifiers for high-split long-distance PONs

Summary form only given. Summary form only given. The authors show that a maximum overhead of 2 bits can be achieved, and the pulse width distortion at 155 Mbit/s is not significant with the gain control of the semiconductor optical amplifiers (SOAs). However, when undergoing the 311 M bit/s upgrade of the uplink, pulse reshaping might be necessary at the burst-mode receiver.