5BOUSSELET P, BISSESSUR H, BRINDEL P, et al. Record 505 km unrepeatered 4 × 43 Gb/s Apol- RZ-DPSK transmission[C]// Proceedings of ECOC' 2008. [S.l.]:ECOC Press, 2008, 1: 119-120.
6CHARLET G, RENAUDIER J. Transmission of 16.4-bit/s capacity over 2 550 km using PDM QPSK modulation format and coherent receiver [J]. J Lightwave Technology, 2009, 27(3):153-156.
7KOBAYASHI T, YAMAZAKI E, YAMADA E, et al. Ultra long-haul transmission over 6 000 km of 100 Gb/s serial signal by using coherent detection [C]// Proceedings of OFC'2009. [S. l.]: OFC Press, 2009 : oww4.
8MORI A, MASUDA H, SHIKANO K, et al. Ultrawide-band tellurite-based fiber Raman amplifier [J]. J Lightwave Technology, 2003, 21(5): 1300-1305.
9ZHOU Xiang, YU Jian-jun. High-spectral-efficiency 114-Gb/s transmission using PolMux-RZ-8PSK modulation format and single-ended digital coherent detection technique [J]. J Lightwave Technology,2009, 27(3): 146-151.
10LOWERY J, DU L B, ARMSTRONG J. Performance of optical OFDM in ultralong-haul WDM lightwave systems[J]. J Lightwave Technology, 2007, 25(1): 131-137.
