下一代高速率弹性光传输系统的实验研究

Experimental Research on the Next Generation High Speed Elastic Optical Network Transmission System

随着数据流量的急剧爆发及带宽的动态变化,当前固定栅格的传输系统架构已无法满足要求,针对下一代高速率弹性光传输系统,研究了滤波带宽和入纤光功率两个问题。通过模拟传输分析了滤波带宽对下一代高速率弹性光传输系统性能的影响,结果表明对于下一代高速率弹性光传输系统滤波带宽为100 GHz且不宜大于105 GHz,并通过搭建不同传输系统进行实验验证,实验结果表明模拟传输分析滤波带宽对传输系统性能的影响和实际实验一致。为研究下一代高速率弹性光传输系统在不引起明显光纤非线性代价情况下的最佳单波入纤光功率,搭建了实时传输系统,通过实验对比分析不同波长入纤功率对性能的影响,确定+5 dBm为下一代高速率弹性光传输系统单载波400 Gb/s和800 Gb/s速率传输时的最佳单波入纤光功率。

With the rapid explosion of data traffic and dynamic changes in bandwidth,the current fixed grid transmission system architecture is no longer able to meet the requirements.For the next generation high-speed elastic optical network transmission system,the article focuses on two issues:filtering bandwidth and fiber input optical power.The influence of the filter bandwidth on the performance of the next-generation high-speed elastic optical network system is analyzed through simulation transmission.The results show that the filter bandwidth for the next-generation high-speed elastic optical network system should not be greater than 105 GHz.The simulation transmission analysis shows that the influence of the filter bandwidth on the performance of the transmission system is consistent with the actual experiment by building different transmission systems.In order to study the optimal single wave input optical power of the next generation high-speed elastic optical network transmission system without causing significant fiber non-linearity costs,a real-time transmission system is built.The impact of different wavelength input optical power on performance is compared and analyzed through experiments.The results show that +5 dBm is determined as the optimal single wave input optical power for the next generation high-speed elastic optical network system with single carrier transmission rates of 400 Gb/s and 800 Gb/s.