All-optical wavelength conversion: technologies and applications in DWDM networks
All-optical wavelength conversion: technologies and applications in DWDM networks
复制标题
DOI：
10.1109/35.825645
复制
发表时间：
2000-03
期刊：
影响因子：
--
通讯作者：
J. Elmirghani;H. Mouftah
中科院分区：
文献类型：
--
作者：
J. Elmirghani;H. Mouftah
密集波分复用技术有效地利用了巨大的光纤带宽，并为全光网络提供了更多的维度。关键网络节点上的波长转换正在成为一种基本功能，它可以实现透明的互操作性、竞争解决、波长路由，并且通常在动态业务模式下更好地利用网络资源。我们概述了使能技术，并将处理扩展到这些转换器的网络应用。重点介绍了半导体光放大器及其在波长转换器中的应用。评估了基于四波混频的转换器和基于非线性光纤环镜的转换器，特别关注了信号完整性和结构以及性能问题。探讨了波长转换器在波长路由网络中的应用，以及这些器件在竞争解决和路由波长分配问题中的应用。在系统和网络两个层面概述了未来的发展方向。
Dense WDM technologies make effective use of the vast fiber bandwidth and offer an added dimension to all-optical networks. Wavelength conversion at key network nodes is emerging as a fundamental functionality that can allow transparent interoperability, contention resolution, wavelength routing, and, in general, better utilization of the network resources under dynamic traffic patterns. We offer an overview of the enabling technologies and extend the treatment to the network application of these converters. Attention is given to semiconductor optical amplifiers and their use in wavelength converters. Converters based on four-wave mixing as well as those based on nonlinear optical loop mirrors are evaluated, paying special attention to signal integrity and architectural as well as performance issues. The use of wavelength converters in wavelength routing networks is explored together with the application of these devices in contention resolution and in the routing wavelength assignment problem. Future directions are outlined at the system as well as network levels.