FEC in optical communications - A tutorial overview on the evolution of architectures and the future prospects of outband and inband FEC for optical communications
FEC in optical communications - A tutorial overview on the evolution of architectures and the future prospects of outband and inband FEC for optical communications
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光通信中的 FEC - 关于光通信的架构演变以及带外和带内 FEC 未来前景的教程概述
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Ioannis Tomkos
中科院分区：
文献类型：
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作者：
A. Tychopoulos;O. Koufopaulou;Ioannis Tomkos
最近在DWDM光链路中建立的10/40 Gbps技术预示着一个带宽丰富的新时代，以响应通过互联网提供的服务的爆炸性增长。前向纠错（FEC）是这一期待已久的成就的关键要素之一。从无线世界中借用，FEC最初被引入波分复用（WDM）光学系统中，以对抗放大自发辐射（ASE），这是光放大器（OA）中固有的一种噪声形式。这些第一代FEC系统已经与大约6dB的编码增益相关联。然而，随着传输速率逐渐向10 Gbps扩展，其他光学损伤也变得越来越重要，主要是非线性（NL）效应，但也包括色散（CD）和偏振模色散（PMD）。FEC在减轻这些损害方面也是非常宝贵的
The recent establishment of the 10/40 Gbps technology in DWDM optical links heralds a new era of bandwidth abundance, in response to an explosive growth of services provided through the Internet. Forward error correction (FEC) is one of the key-enabling elements in this long-awaited achievement. Borrowed from the wireless world, FEC was initially introduced in wavelength-division multiplex (WDM) optical-systems to combat amplified spontaneous emission (ASE), a form of noise native in optical amplifiers (OAs). These first generation FEC systems have been associated with a coding-gain of approximately 6 dB. However, as transmission rates gradually scaled towards 10 Gbps, other optical-impairments gained in significance, primarily nonlinear (NL) effects but also chromatic-dispersion (CD) and polarization mode dispersion (PMD). FEC turned out to be invaluable in mitigating these impairments as well