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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Chromatic dispersion fluctuations in optical fibers due to temperature and its effects in high-speed optical communication systems
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Chromatic dispersion fluctuations in optical fibers due to temperature and its effects in high-speed optical communication systems

机译：温度引起的光纤色散波动及其在高速光通信系统中的作用

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摘要

Several research groups have been proposing different dispersion compensation schemes, for very high-speed(>=40 Gbit/s) long-haul systems operating in the C-band window (1530--1563 nm) over standard single mode fibers, known as ITU-T G.652 fibers. The focus on these high chromatic dispersion fibers is due to the large amount of standard single mode fibers already installed in the field. Although several dispersion compensation techniques have proved to be successful, the long term stability of this kind of systems remains to be seen. In fact, when in the field, these high speed systems present a very unstable behavior, which is translated in large variations of the bit error rate. In order to stabilize the systems strong forward error correction codes have been used. In this work, we prove quantitatively that this inherent instability is mainly due to chromatic dispersion variations induced by temperature swings. Two models for the chromatic dispersion and chromatic dispersion slope variations with temperature are developed and validated using laboratory measurements previously published. After the effect of temperature change is analyzed in terms of eye opening penalty, it is shown that for systems operating at 40 Gbit/s and above temperature effects have to be considered in system design.
机译：几个研究小组已经提出了不同的色散补偿方案，用于在标准单模光纤上以C波段窗口（1530--1563 nm）运行的超高速（> = 40 Gbit / s）长途系统。 ITU-T G.652光纤。对这些高色散光纤的关注是由于已经在现场安装了大量的标准单模光纤。尽管几种色散补偿技术已被证明是成功的，但这种系统的长期稳定性仍有待观察。实际上，在现场时，这些高速系统表现出非常不稳定的行为，这转化为误码率的大变化。为了稳定系统，已经使用了强大的前向纠错码。在这项工作中，我们定量地证明了这种固有的不稳定性主要是由于温度波动引起的色散变化。色散和色散斜率随温度变化的两个模型已开发出来，并使用先前发表的实验室测量结果进行了验证。根据开眼罚分分析温度变化的影响后，表明对于在40 Gbit / s和更高温度下运行的系统，必须在系统设计中考虑温度影响。

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