40Gbit/s高速光传输技术的应用与挑战

Deployment and Challenge of 40Gbit/s High Speed Optical Transmission Technology

简要分析了40Gbit/s高速光传输技术的发展背景和应用现状;深入分析了对其面临的挑战,例如现网光纤PMD对其传输距离的限制,持续降低成本的挑战,与100Gbit/s的分工和竞争等;最后对其发展进行了展望。

This article will first give a brief introduction to the background, deployment and state of art of 40Gbit/s high speed optical transmission technology. The main part of the article is the analysis of the challenges of 40Gbit/s transmission technology, including the distance restrict brought by PMD of deployed fiber, continual reducing of cost, boundary and challenge of 40Gbit/s and 100Gbit/s, et.al.