Effects of Polarization-mode Dispersion on Fiber Communication Systems

本项目的目的是研究偏振模色散对光纤通信系统的影响。偏振模色散(PMD)是由光纤的随机双折射引起的。随着每个通道的比特率达到每秒数百千兆字节，偏振模色散已成为制约系统性能的主要因素。获奖者将研究偏振模色散对线性和孤子通信系统的影响。特别是，他将研究作为线性传输系统中任意光纤长度的函数的各种双折射模型的差分群延迟的概率分布。他还计划研究偏振模色散和弱非线性对通过测试光纤输出的偏振器测量的传输光谱统计的综合影响。此外，他还将评估偏振模色散对孤子通信系统的影响。他将研究偏振模色散引起的定时抖动、偏振起伏和色散辐射的统计数据，并估计偏振模色散对孤子传输的限制。这些问题是不同的，但又相互关联。这些研究结果将为通信系统设计的各个方面提供理论指导。本课题研究偏振模色散(PMD)对光纤通信系统的影响。这是一种降低光纤通信系统性能的现象。它沿着光纤随机发生，随时间变化，很难控制。因此，它是限制光通信系统性能的主要因素。这项工作将通过建立和分析数学模型，直接解决偏振模色散对当前光纤通信系统的影响这一现实问题，从而得出这类系统的设计建议和性能界限

The objective of this project is to study the effects of polarization modedispersion on fiber communication systems. Polarization mode dispersion (PMD)is caused by random birefringence of optical fibers. As the bit rate per channelis reaching tens of gigabytes per second, PMD has become a major limiting factor on the system performance. The awardee will study the effects of PMD on both linear and soliton communication systems. In particular, he will investigate the probability distribution of the differential group delay for various birefringence models as a function of arbitrary fiber length in a linear transmission system. He also plans to examine the combined effects of PMD and weak nonlinearity on the statistics of the transmissionspectrum measured through a polarizer at the output of a test fiber. In addition, he will assess the effects of PMD on a soliton communication system.He will examine the statistics of PMD-induced timing jitter, polarizationfluctuations and dispersive radiation, and estimate limitations imposed by PMD on soliton transmission. These problems are different but inter-related. The results of these studies will provide theoretical guidance on various aspects of communication system design. This project studies the effects of polarization mode dispersion (PMD) on fiber communication systems. This is a phenomenon that degrades the performance of optical fiber communication systems. It occurs randomly along optical fibers, changes with time and is hard to control. Therefore it is a major limiting factor for the performance of optical telecommunication systems. The work will directly address the realistic problem of PMD effects on current fiber communication systemsthrough the develoment and analysis of mathematical models and will thus lead to design recommendations and performance bounds for such systems