Impact of group-delay ripple in transmission systems including phase-modulated formats
Impact of group-delay ripple in transmission systems including phase-modulated formats
复制标题
传输系统（包括相位调制格式）中群延迟纹波的影响
DOI：
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发表时间：
2004
影响因子：
2.6
通讯作者：
Xing Wei
中科院分区：
文献类型：
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作者：
Xiang Liu;L. Mollenauer;Xing Wei
我们推导出一个解析表达式的信号失真，结果从群延迟涟漪（GDR）的影响。当简化为一阶形式时，我们的表达式提供了一个清晰的物理图像，即信号如何受到涟漪周期、幅度的影响，以及平均信号频率如何相对于涟漪峰值定位。我们还发现与涟漪相关的光信噪比惩罚取决于信号位之间的相位关系。详细分析了GDR对差分相移键控传输的影响。
We derive an analytic expression for the signal distortion that results from the effects of group-delay ripple (GDR). When reduced to its simplified first-order form, our expression provides a clear physical picture of how the signal is affected by the ripple period, magnitude, and how the mean signal frequency is located with respect to the ripple peaks. We also find the optical signal-to-noise ratio penalty associated with the ripple to be dependent on the phase relationship among the signal bits. Particular analysis on the impact of GDR in differential phase-shift keying transmission is presented.