Effects of Polarization Mode Dispersion on Coherent Optical Receivers

该方案的目的是从理论上分析偏振模色散(PMD)对各种类型相干光接收机的影响。这项研究将确定误码率如何取决于传输和本地激光光谱宽度、光传输链路的长度以及光纤的PMD特性。这对于现在可以通过光纤放大器实现的超长链路非常重要。分析将在所有主要类型的接收器上进行，这些接收器处理极化和结合相位或频率的极化。这包括：1)使用ASK、FSK和DPSK解调、具有和不具有相位分集的极化分集接收器，2)使用极化控制器的接收器，以及3)进行极化解调的接收器。偏振模色散被定义为光纤的两个主偏振态之间的群延时差。在分析中使用主态作为基向量。还使用了斯托克斯参数。

The objective of this proposal is to theoretically analyze the effects of polarization mode dispersion (PMD) on various types of coherent optical receivers. The research will determine how the bit error rate depends on the transmitting and local laser spectral widths, the length of the optical transmission link, and the PMD properties of the fiber. This will be important for the very long links that are now possible with fiber amplifiers. The analysis will be performed on all major types of receivers that process polarization and polarization combined with phase or frequency. This includes: 1) polarization diversity receivers using ASK, FSK and DPSK demodulation, with and without phase diversity, 2) receivers that use polarization controllers, and 3) receivers that do polarization demodulation. Polarization mode dispersion is defined as the difference in group delay between the two principal states of polarization of a fiber. The principal states are used as basis vectors in the analysis. Stokes parameters are also used.