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Optical orthogonal division multiplexing for long haul optical communications:A review of the first five years

机译:长距离光通信的光正交划分复用:前五年的回顾

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Optical OFDM was proposed for dispersion compensation in long-haul optical communications systems in 2006 in two forms, one using direct-detection and the other using coherent detection. Since then there has been extensive innovation towards developing intermediate forms of optical OFDM that are more suited to specific applications. This review paper presents our view on the developments in optical OFDM for long-haul optical transmission applications. It covers the basic elements of radio OFDM before concentrating on direct detection optical OFDM and its development, followed by coherent optical OFDM. All-optical OFDM is then considered, together with optical methods of generating and separating the OFDM subcarriers. The paper then discusses the critical issue of nonlinear degradation due to the Kerr effect in optical fibers and reviews recent innovations to mitigate the effects of fiber nonlinearity. Finally some future research directions are discussed.
机译:在2006年,光OFDM提出了两种形式的用于长距离光通信系统的色散补偿,一种使用直接检测,另一种使用相干检测。从那时起,在开发更适合特定应用的光学OFDM中间形式方面进行了广泛的创新。这篇综述文章提出了我们对长距离光传输应用中光OFDM的发展的看法。在集中讨论直接检测光学OFDM及其发展之前,先介绍无线电OFDM的基本元素,然后再介绍相干光学OFDM。然后考虑全光OFDM,以及产生和分离OFDM子载波的光学方法。然后,本文讨论了由于光纤中的Kerr效应引起的非线性退化的关键问题,并回顾了减轻光纤非线性影响的最新创新。最后讨论了一些未来的研究方向。

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