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Future photonic transport networks based on WDM technologies

机译：基于WDM技术的未来光子传输网络

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It is expected that the explosion in Internet traffic implies a paradigm shift from a voice network to a data-centric network. The first and most important requirement of future transport networks is the large bandwidth transport capability which enables the paradigm shift. In addition, requirements for new service attributes are becoming more tangible. Furthermore, high reliability will be indispensable because the multimedia network will be the basis for the information society. To develop the robust and efficient networks that satisfy the requirements above, new network architectures and technologies should be developed. Photonic networks employing dense WDM technologies appear to be the solution. In this article, first the basic concept of the future photonic network is depicted. Next, the capability of large-capacity fiber transmission is shown. The critical degradation factor of fiber nonlinearity is analyzed, and the effectiveness of distributed amplification is quantitatively demonstrated. Furthermore, advances in fiber amplifiers which greatly widen the usable fiber window are shown. Other key technologies such as absolute frequency referencing and multiple channel frequency management techniques are also discussed.
机译：可以预期，Internet流量的爆炸式增长意味着从语音网络到以数据为中心的网络的转变。未来传输网络的第一个也是最重要的要求是大带宽传输能力，它可以实现范式转换。此外，对新服务属性的要求也越来越切实。此外，因为多媒体网络将成为信息社会的基础，所以高可靠性将是必不可少的。为了开发满足上述要求的强大高效的网络，应开发新的网络体系结构和技术。解决方案是采用密集WDM技术的光子网络。在本文中，首先描述了未来光子网络的基本概念。接下来，示出了大容量光纤传输的能力。分析了纤维非线性的关键退化因素，并定量证明了分布式放大的有效性。此外，示出了光纤放大器的进步，其极大地拓宽了可用光纤窗口。还讨论了其他关键技术，例如绝对频率参考和多通道频率管理技术。

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