毫米波生成系统中估算偏振模色散引起功率损耗的新方法(英文)

提出了一种在基于光外差法毫米波生成系统中估算由偏振膜色散(PMD)引起的功率损耗的新方法。不同于之前的方法,此方法将在光纤中传输的光载波视为一个随机过程,计算出了其自相关函数,并利用帕斯瓦尔定理估算功率损耗。利用此方法估算出在单模光纤(SMF)中由PMD引起的功率损耗,计算结果与之前方法得出的结果相似,证明了此方法的正确性。最后,直观地给出60 GHz信号在3个不同传输距离下由PMD引起的功率损耗。

New approach for estimating PMD-induced power degradation in millimeter-wave generation systems

A new approach was put torward for estimating the polarization mode dispersion(PMD) induced power degradation to do a performance analysis of millimeter-wave(mm-wave) generation systems based on optical self-heterodyne technique.Unlike those established ones,this new approach was proposed from another perspective.Considering the optical carrier which is distributed over optical fiber as a stochastic process.The autocorrelation function of the stochastic process was calculated,and then the power degradation could be estimated with Parseval′ s theorem.This approach to estimate PMD-induced power degradation in normal signal mode fiber(SMF) was used.The results of the approach are well approximates to those established ones,which proves that the theoretical approach is correct.At last,schematics of the power degradation of a 60 GHz signal due to PMD with three different fiber lengths were given to provide intuitive assistance for readers.