Ultra-High Capacity Optical Transmission Technologies for 100 Tbit/s Optical Transport Networks
Ultra-High Capacity Optical Transmission Technologies for 100 Tbit/s Optical Transport Networks
复制标题
100Tbit/s光传送网络的超大容量光传输技术
DOI：
10.1587/transcom.e94.b.400
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Y. Miyamoto
中科院分区：
文献类型：
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作者：
A. Sano;Takayuki Kobayashi;E. Yoshida;Y. Miyamoto
本文介绍了用于 100 Tbit/s 级光传输网络 (OTN) 的超高容量波分复用 (WDM) 传输技术。首先，我们回顾超高容量传输技术的最新进展，重点关注频谱效率多级调制技术和超宽带光放大技术。接下来，我们描述了一个超高容量WDM传输实验，其中通过光合成技术生成的高速偏振分复用（PDM）16进制正交幅度调制（16-QAM）与基于无导频算法的数字信号处理的相干检测相结合，实现了6.4b/s/Hz的高频谱效率（SE）。此外，利用分布式拉曼放大 (DRA) 以及 C 波段和扩展 L 波段掺铒光纤放大器 (EDFA) 的超宽带混合光放大可实现 10.8 THz 总信号带宽。通过使用这些技术，在 240 公里的纯硅芯光纤 (PSCF) 上实现了 69.1 Tbit/s 的传输。此外，我们还描述了 160km PSCF 上的 PDM 64-QAM 传输，SE 为 9.0b/s/Hz。
This paper describes ultra-high capacity wavelength-division multiplexed (WDM) transmission technologies for 100-Tbit/s-class optical transport networks (OTNs). First, we review recent advances in ultra-high capacity transmission technologies focusing on spectrally-efficient multi-level modulation techniques and ultra-wideband optical amplification techniques. Next, we describe an ultra-high capacity WDM transmission experiment, in which high speed polarization-division multiplexed (PDM) 16-ary quadrature amplitude modulation (16-QAM), generated by an optical synthesis technique, in combination with coherent detection based on digital signal processing with pilotless algorithms, realize the high spectral efficiency (SE) of 6.4b/s/Hz. Furthermore, ultra-wideband hybrid optical amplification utilizing distributed Raman amplification (DRA) and C- and extended L-band erbium-doped fiber amplifiers (EDFAs) is shown to realize 10.8-THz total signal bandwidth. By using these techniques, 69.1-Tbit/s transmission is demonstrated over 240-km of pure silica-core fibers (PSCFs). Furthermore, we describe PDM 64-QAM transmission over 160km of PSCFs with the SE of 9.0b/s/Hz.