Dong Zhenhua1, Yin Xinda5, Huang Liyan1, et al. Research on a 521 km ultra-long span repeaterless optical transmission system[J]. 2011,(1):5-8. DOI: 10.13756/j.gtxyj.2011.01.006.
This paper introduces a 521 km ultra-long span repeaterless transmission in a 2.5 Gbit/s optical transmission system by utilizing Corning SMF-28 ULL ultra-low loss optical fiber as the transmission medium and such technologies as phase chirp
forward Raman
enhanced FEC and channel associated Remote Optical Pre-pumping Amplifier(ROPA).This is the longest transmission distance by using the ROPA technology reported so far.
关键词
超长站距光传输系统远程泵浦光放大拉曼放大前向纠错超低损耗光纤
Keywords
ultra-long span optical transmission systemROPARaman amplifierFECultra-low loss optical fiber