With continued demand for bandwidth and scalability in passive optical networks, there is a need to address the evolution of passive optical networks from the current generation to next.

伴随着对无源光网络带宽和可扩展性需求的不断增加，下一代无源光网络的研究和设计以提到议事日程上。

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The WDM optical networks employing routing and wavelength assignment (RWA) are considered as the most competitive candidates for next generation backbone networks.

采用路由选择和波长分配（RWA）的WDM光网络被认为是下一代高速广域骨干网的最有竞争力的候选方案。

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WDM-based wavelength-routed optical networks have been widely considered a promising network infrastructure for next-generation optical networks.

在波长路由光网络中，网络的存活性已经受到越来越多的重视。

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Rather, TRW is working with Nortel Networks to build signal-splitting chip sets fast enough to eliminate bottlenecks on the next generation of long-distance optical telecom networks.

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