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首页> 外文会议>Fifth International Conference on Applications of Photonic Technology (ICAPT 2002), Jun 1-6, 2002, Quebec City >Fiber Bragg Gratings and Chromatic Dispersion
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Fiber Bragg Gratings and Chromatic Dispersion

机译：光纤布拉格光栅和色散

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摘要

Since the late 1990s, steady advances in wavelength division multiplexing (WDM) technology have provided better ways to increase the capacity of optical networks. As the industry makes the transition to advanced optical networks, three significant trends become evident in long-haul transmission system, namely the continual increase in the number of dense WDM channels, the increase in data rates from 2.5 Gb/s to today's 10 Gb/s, to tomorrow's 40 Gb/s, and finally longer distances between electrical regeneration sites. These trends towards an increased optical network capacity are now clashing with chromatic dispersion. The management of chromatic dispersion due to the optical fiber and optical components is one of the critical challenges for present and future telecommunication systems operating at data rates of 10 Gb/s and higher. Chromatic dispersion, while inherently troublesome, does however bring with it some advantages, in that it keeps undesirable non-linear effects (such as self-phase modulation and four-wave mixing) to acceptable levels. Hence, rather than eliminating completely chromatic dispersion with specialized fiber like dispersion-shifted fiber, it is better to compensate for it using additional devices. This paper will discuss the application of high-end FBGs to telecommunication systems, focusing on their performances with respect to chromatic dispersion. Two types of components will be discussed: low-dispersion FBG WDM filters and FBG dispersion compensators. High-quality ultra-low dispersion FBGs have been fabricated successfully and their key attributes will be discussed. Advanced applications of FBGs for chromatic dispersion compensation, such as broadband multi-channel dispersion and slope compensation, will be covered. In particular, FBG dispersion slope compensators can be used in conjunction with Dispersion Compensating Fiber (DCF) to fully manage the dispersion over a large number of WDM channels. The need for tunable dispersion compensation at 40 Gb/s transmission rates will be discussed. Experimental results will also be presented.
机译：自1990年代后期以来，波分复用（WDM）技术的稳步发展提供了提高光网络容量的更好方法。随着行业向高级光网络的过渡，长距离传输系统中的三个重要趋势变得明显，即密集WDM信道数量的不断增加，数据速率从2.5 Gb / s增长到今天的10 Gb / s。 s，到明天的40 Gb / s，最终电气再生站点之间的距离更长。这些增加光网络容量的趋势现在正与色散冲突。由于光纤和光学组件造成的色散管理是当前和未来以10 Gb / s或更高数据速率运行的电信系统的关键挑战之一。色散虽然固有地很麻烦，但它确实带来了一些优点，因为它可以将不良的非线性影响（例如自相位调制和四波混合）保持在可接受的水平。因此，与其使用色散位移光纤之类的专用光纤消除完全色散，不如使用附加设备对其进行补偿更好。本文将讨论高端FBG在电信系统中的应用，重点是它们在色散方面的性能。将讨论两种类型的组件：低色散FBG WDM滤波器和FBG色散补偿器。高质量的超低色散FBG已成功制造，并将讨论其关键特性。将会介绍用于色散补偿的FBG的高级应用，例如宽带多通道色散和斜率补偿。特别是，FBG色散斜率补偿器可以与色散补偿光纤（DCF）结合使用，以完全管理大量WDM通道上的色散。将讨论在40 Gb / s传输速率下对可调色散补偿的需求。实验结果也将介绍。

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