Enhanced Reflection Tolerance of Upstream Signal in a RSOA-based WDM PON by using Manchester Coding

摘要

We have experimentally investigated the reflection tolerance of upstream signals by comparing Manchester-encoded downstream signals with NRZ ones in a RSOA-based fiber loop back system for a WDM PON. The results showed that the reflection tolerance of the upstream signals strongly dependeds on the downstream signal modulation formats, and that the Manchester format was more tolerant than the NRZ one against the reflection of the upstream signal.