50G-PON技术与应用

摘要：结合技术标准与产品研发实践，分析了50G-PON的物理层、低时延等关键技术。针对现网部署需求，探讨了从10G-PON向50G-PON平滑演进中的时分复用技术与兼容性升级方案。基于高带宽、低时延特性，分析了50G-PON在宽带接入、无线回传、工业控制等场景中的应用。指出50G-PON作为第3代PON技术，是构建“泛在万兆全光网”的关键支撑。

关键词：50G-PON；PON；时分动态带宽分配；低时延；单帧多突发

Abstract: Based on technical standards and product development practices, key technologies of 50G-passive optical access network (50G-PON), including physical layer and low latency techniques, are analyzed. Addressing the requirements of existing network deployment, time-division multiplexing and compatibility upgrade solutions for the smooth evolution from 10G-PON to 50G-PON are explored. Leveraging the high-bandwidth and low-latency characteristics, applications of 50G-PON in scenarios such as broadband access, wireless backhaul, and industrial control are discussed. As the third-generation PON technology, 50G-PON is identified as a key enabler for constructing the "ubiquitous 10-gigabit all-optical network".

Keywords: 50G-PON; time-division-multiplexing dynamic bandwidth allocation; low latency; single frame multiple burst