随着行业数字化转型驱动网络升级、宽带普及率的提高和宽带提速的深入,千兆光网络从消费领域向垂直行业领域延伸,满足千行百业数字化转型对光接入网络的新需求成为现阶段的重点。作为下一代的光接入网系统,50 G PON技术成为当今通信行...随着行业数字化转型驱动网络升级、宽带普及率的提高和宽带提速的深入,千兆光网络从消费领域向垂直行业领域延伸,满足千行百业数字化转型对光接入网络的新需求成为现阶段的重点。作为下一代的光接入网系统,50 G PON技术成为当今通信行业中千兆光网演进的热点。文章结合运营商及行业数字化转型发展特征,浅析50 G PON的承载特性和应用,并在此基础上分析50G P ON现网试点情况。展开更多
A distributed access scheme using optical add/drop multiplexers (OADMs) for long reach hybrid wavelength division multiplexing and time division multiplexing passive optical networks (WDM-TDM PONs) is proposed and...A distributed access scheme using optical add/drop multiplexers (OADMs) for long reach hybrid wavelength division multiplexing and time division multiplexing passive optical networks (WDM-TDM PONs) is proposed and demonstrated. Colorless operations are implemented by using commercially available reflective semiconductor optical amplifiers (RSOAs) at both the center office (CO) and the customer side. Four 1.25-Gb/s channels are successfully transmitted over 80-km single-mode fiber with four OADMs. The dynamic input power range of the RSOA is also investigated. Compared with traditional access schemes, the proposed scheme could cover the area along the feed fiber with no blind zone. The experimental results show that it could be an ideal solution for the next generation access networks.展开更多
文摘随着行业数字化转型驱动网络升级、宽带普及率的提高和宽带提速的深入,千兆光网络从消费领域向垂直行业领域延伸,满足千行百业数字化转型对光接入网络的新需求成为现阶段的重点。作为下一代的光接入网系统,50 G PON技术成为当今通信行业中千兆光网演进的热点。文章结合运营商及行业数字化转型发展特征,浅析50 G PON的承载特性和应用,并在此基础上分析50G P ON现网试点情况。
基金supported by the National "863" program of China (No. 2007AA01Z229)the National Basic Research Program of China (No. 2010CB328300)
文摘A distributed access scheme using optical add/drop multiplexers (OADMs) for long reach hybrid wavelength division multiplexing and time division multiplexing passive optical networks (WDM-TDM PONs) is proposed and demonstrated. Colorless operations are implemented by using commercially available reflective semiconductor optical amplifiers (RSOAs) at both the center office (CO) and the customer side. Four 1.25-Gb/s channels are successfully transmitted over 80-km single-mode fiber with four OADMs. The dynamic input power range of the RSOA is also investigated. Compared with traditional access schemes, the proposed scheme could cover the area along the feed fiber with no blind zone. The experimental results show that it could be an ideal solution for the next generation access networks.