CHARACTERIZING FILTERED LIGHT WAVES CORRUPTED BY PHASE NOISE
CHARACTERIZING FILTERED LIGHT WAVES CORRUPTED BY PHASE NOISE
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DOI：
10.1109/18.21283
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发表时间：
1988-11-01
影响因子：
2.5
通讯作者：
VANNUCCI, G
中科院分区：
文献类型：
--
作者：
FOSCHINI, GJ;VANNUCCI, G
在研究光波通信系统的性能时，必须考虑单模半导体激光器的相位噪声。标准相位噪声模型是布朗运动随机过程。虽然已经发表了许多关于光波通信系统的分析，但据作者所知，没有一个完全符合标准模型。原因是没有实现滤波后的光波信号的适当表征。这样的表征，沿着与理论方法来获得它，详细。例如，作者展示了如何生成滤波后的激光音调（特别注意尾部区域）的幅度的概率密度函数（PDF），以及如何在小相位噪声领域中以封闭形式解析表示PDF的特征函数。有了适当的表征，现在就可以确定寻求减轻相位噪声损害的高级检测技术的误比特率性能。<>
The phase noise associated with single-mode semiconductor lasers must be accounted for in performance studies of lightwave communication systems. The standard phase noise model is a Brownian-motion stochastic process. Although many analyses of lightwave communication systems have been published, none, to the authors knowledge, has fully adhered to the standard model. The reason is that a proper characterization of filtered lightwave signal had not been achieved. Such a characterization, along with theoretical approaches to obtaining it, is detailed. The authors show, for example, how to generate probability density functions (PDFs) of the magnitude of a filtered laser tone (with special attention to the tail region) and how to analytically represent the characteristic function of the PDF in closed form in the small-phase-noise realm. With the characterization in place, the stage is now set for determining the bit-error rate performance of advanced detection techniques which seek to mitigate the phase noise impairment.<>