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随着可重构型光分插复用器(ROADM)在过去几年的发展,完全的光交换成为可能,使得动态光网络逐渐取代了传统的静态光网络,在通信和网络领域占据了重要的地位。这里首先介绍了ROADM架构,然后阐述了目前ROADM中最为关键的波长选择交换器的实现原理以及4种不同的可用的解决方案,并对他们的优点和缺点进行了分析。最后对未来可能的应用和发展方向进行了讨论。
With the development of reconfigurable optical add-drop multiplexers (ROADMs) in the past few years, complete optical switching becomes possible, making dynamic optical networks gradually replace traditional static optical networks and occupy an important position in communications and networking Position. This article first introduces the ROADM architecture and then describes the implementation principles of the most critical wavelength selective switches in ROADM and four different available solutions, and analyzes their strengths and weaknesses. Finally, the possible application and development direction are discussed in the future.