基于SOA中XGM型全光比较器的分析研究论文终版.doc

摘 要 全光分组交换网是光通信网络的未来发展方向，全光交换的实现，不仅可以克服电子瓶颈的限制，而且也使全光分组交换网具有灵活、高速、交换粒度多样化以及网络资源利用率高等优势。而全光信号处理是实现全光分组交换网的关键所在，全光信号比较器作为全光信号处理技术的重要组成部分,对未来的光分组交换、光计算等方面具有十分深远的影响。半导体光放大器（SOA）因为具备良好的非线性和高可集成性，十分适合用来实现光逻辑功能。 本文研究了一种基于SOA中的交叉增益调制（XGM）效应的全光比较器方案。对这种基于SOA的XGM型全光比较器进行了深入的理论研究，具体内容如下： （1）分析了全光比较器的研究意义，概括了全光比较器的种类和研究现状，选取了基于SOA中XGM效应实现全光比较器的方案。 （2）阐述了基于SOA中XGM效应的全光比较器的工作原理。然后简单介绍了 SOA的理论模型，利用理论模型，可以很好地模拟分析这种全光逻辑门的各种输出特性。 （3）利用仿真软件OptiSystem7.0对基于SOA的XGM型全光比较器进行了仿真，分析了全光比较器的各种特性，如输出功率和输出消光比与输入泵浦光功率、探测光功率、SOA注入电流之间的关系。 关键词：全光比较器，半导体光放大器，交叉增益效应，输出功率，消光比 ABSTRACT Optical packet switching (OPS)network is believed to be the future developing direction ,in which the realization of all optical switching will not only overcome the electrical bottleneck but offer the network dominances of scalability，ultra-high speed, switching granularity diversity and high esources efficiency etc. The all-optical signal processing is to achieve all-optical packet switching network key, Optical signal comparator as the important components of all-optical signal Processing have far-reaching influence on all-optical signal regeneration, optical computing and so on. Semiconductor optical amplifier（SOA）, due to its good nonlinear and high integration, is very suitable for the realization of optical logic functions. A novel scheme for all-optical Comparator based on cross-gain modulation in semiconductor optical amplifiers is researched. In the paper, we have a theoretical study in all-optical Comparator based on cross-gain modulation in semiconductor optical amplifiers. The main contents are as follows: （1）First of all-optical comparator of significance. Then outlines the types of all-optical comparator and the current research, Cross-gain modulation for all-optical comparator proposed SOA-based all-optical comparator program. （2）First analyzes the XGM effect in SOA-based all-optical comparator works. Then introduces the SOA theoretical model, the use of mathematical models can simulate the analysis o