Abstract
40Gb/s high-speed communication system has many advantages and could be widely used in future. But there are also many factors affecting this system; especially PMD is one of the most important factors. In this paper, we focus on analyzing the influence of PMD. With analyzing the reasons which caused PMD, we improved Fiber Spinning Unit (FSU) and developed spinning process independently. Through spinning fiber in a sinusoidal way, controlling the amplitude and frequency of the spinning wheels, we dramatically reduced the value of PMD (≤0.03 ps - km -1/2 ). Finally, we tested the value of PMD in different situations, such as PMD of single plate fiber, PMD in optical fiber link and PMD in simulative optical cable. The results indicated that PMD can be strongly reduced by spinning fiber while drawing and the fiber links could also have lower PMD. So fibers with low PMD can be well used by different network operators with good effect in return.
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