This paper proposes a method to monitor the operation performance of reflective semiconductor optical amplifier (RSOA)-based optical network units (ONUs) in wavelength-reuse wavelength-division-multiplexing passive optical network topologies. For this goal, the optical erasure efficiency of ONU RSOA is numerically evaluated through remote measurements at the optical line terminal site, using the VPI Transmission Maker software. The results show good correlation with the optical erasure behavior of RSOA in the injection power range of –20 to –5 dB, bias current of 50 and 150 mA, and confinement factor of 0.2 and 0.3. As a consequence, this method can be used to qualitatively estimate the optical and electrical features of ONU RSOA from the central office, instead of performing a local direct measurement.

本文提出了一种在波长复用复用波分复用无源光网络拓扑中监视基于反射式半导体光放大器（RSOA）的光网络单元（ONU）的性能的方法。为此，使用VPI Transmission Maker软件，通过在光线路终端站点进行远程测量，对ONU RSOA的光擦除效率进行了数值评估。结果表明，在–20至–5 dB的注入功率范围内，50和150 mA的偏置电流以及0.2和0.3的限制因子下，RSOA的光学擦除行为具有良好的相关性。因此，该方法可用于从中心局定性估计ONU RSOA的光学和电气特性，而无需执行本地直接测量。