Toward the Shannon Limit of Spectral Efficiency
Toward the Shannon Limit of Spectral Efficiency
复制标题
DOI：
10.1109/jphot.2011.2127468
复制
发表时间：
2011-04
影响因子：
2.4
通讯作者：
L. Yan;Xiang Liu;William Shieh
中科院分区：
文献类型：
--
作者：
L. Yan;Xiang Liu;William Shieh
以频谱效率（SE）为主要指标，回顾了2010年大容量光通信系统的进展。先进的调制格式，例如正交幅度调制 (QAM) 和正交频分复用 (OFDM)，以及偏振复用 (PDM) 和数字相干检测，在接近光纤通信 SE 的香农极限方面发挥着关键作用。光子学现在正在进入一个与电子学（无线）同等的高 SE 的新时代，但总体系统容量要高出几个数量级。
Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division multiplexing (OFDM), together with polarization-division multiplexing (PDM) and digital coherent detection, are playing key roles in approaching the Shannon limit of SE for optical fiber communication. Photonics is now entering into a new era of high SE on par with electronics (wireless), yet with orders of magnitude higher overall system capacity.