中文摘要：

半导体光放大器(SOA ) 在所有光的信号处理有明显的优点因为简单结构，强壮的非线性，和容易的集成。许多所有光的信号处理功能例如所有光的波长变换，所有光的逻辑门和所有光的采样，能被 SOA 完成。SOA 因此是普遍的在所有光的信号处理的地里担心了。最近， SOA 的极化旋转效果正在收到可观的兴趣，并且许多研究人员发射了利用这效果的众多的研究工作。在这篇论文，基于 SOA 的极化旋转效果使用极化开关(程序状态字) 的新所有光的正反器结构被介绍。

英文摘要：

The semiconductor optical amplifier （SOA） has obvious advantages in all-optical signal processing, because of the simple structure, strong non-linearity, and easy integration. A variety of all-optical signal processing functions, such as all-optical wavelength conversion, all-optical logic gates and all-optical sampling, can be completed by SOA. So the SOA has been widespread concerned in the field of all-optical signal processing. Recently, the polarization rotation effect of SOA is receiving considerable interest, and many researchers have launched numerous research work utilizing this effect. In this paper, a new all-optical flip-flop structure using polarization switch （PSW） based on polarization rotation effect of SOA is presented.