Electronic signal processing in optical communications
Electronic signal processing in optical communications
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DOI：
10.1117/12.806530
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发表时间：
2008-11
期刊：
影响因子：
--
通讯作者：
S. Savory
中科院分区：
文献类型：
--
作者：
S. Savory
光通信正在经历一场数字革命，数字信号处理（DSP）作为一种可靠的长距离传输的实用解决方案出现。与以前的系统相比，光色散补偿被认为是必要的，最近的无补偿长途传输已经在发射器，接收器或两者的组合上使用DSP进行了演示。我们回顾了应用于光通信的电子信号处理的历史发展，然后重点介绍了最新的发展，即数字相干系统。在讨论电子信号处理带来的挑战和机遇之前，我们将讨论目前正在研究的电子信号处理方案的显著特征。
Optical communications is undergoing a digital revolution, as digital signal processing (DSP) emerges as a practical solution for robust long-haul transmission. In contrast to previous systems, in which optical dispersion compensation was considered a necessity, recently uncompensated long-haul transmission has been demonstrated using DSP at the transmitter, receiver, or a combination of the two. We review the historic developments of electronic signal processing as applied to optical communications before focusing the latest developments, namely digital coherent systems. We then discuss the salient features of the electronic signal processing schemes currently under investigation before discussing the challenges and opportunities offered by electronic signal processing.