[1] [1] SERGEY T. Ultra Low-loss Optical Fiber Technology[C]//Optical Fiber Communication Conference and Exhibition(OFC), March 20-22, 2016, Anaheim, United States. OFC, 2016. DOI: 10. 1364/OFC. 2016.Th4E.5.

[4] [4] ZHANG Lei, ZHU Jihong, LI Jing, et al. Novel Ultra Low Attenuation and Large Effective Area G.654EFiber in Terrestrial Application[C]//Optical Fiber Communications Conference and Exhibition, March 19-23, 2017, Los Angeles, United States. Los Angeles: OFC, 2017. DOI: 10.1364/OFC. 2017.W2A.23.

[5] [5] ITU-T. Characteristics of a cut-off shifted single-mode optical fiber and cable: ITU-T G.654-2016[S]. Geneva: ITU-T, 2016: 7-11.

[6] [6] SAITO K, SASAI T, HAMAOKS F, et al. High spectral efficiency real-time 500 Gb/s / carrier transmission over field-instaalled G.654E fiber link using forward and backward gistributed Raman amplification[C] // Optical Fiber Communication Conference and Exhibition (OFC), March 8-22, 2020, San Diego, USA. San Diego: OFC, 2020: Th1D.3-1-Th1D.3-3.

[7] [7] GONOHE T, MATSUMOTO S, TAKAISHI H, et al .Transmission Performance of 600 Gb/s per Wavelength Signals over Insalled Slotted-core Cable using G.654E Optical Fiber[C]//Proceedings of the IWCSTM 2019 International Cable & Connectivity Symposium, September 30-October 2, 2019, North Carolina, USA. North Carolina: International Cable & Connectivity Symposium, 2019: 56-62.