为什么补偿光纤非线性永远无法满足容量需求
Why compensating fibre nonlinearity will never meet capacity demands
摘要：
目前的研究工作集中在克服由于光纤非线性引起的失真而导致的单模光纤中的通信的明显限制。它已被实验证明，这种克尔非线性极限是不是一个基本的限制，因此，它是适当的审查的基本限制光通信的谎言，并在此基础上指导未来的研究。本文详细介绍了最近提出的结果。本文的工作简要回顾了标准单模光纤（SMF）上的光通信的固有限制，并表明石英光纤功率处理和收发器设计的经验限制都引入了一个实际的上限使用SMF的通信容量，在1 Pbit/s的顺序。超过1 Pbit/s的传输速率被证明是可能的，然而，利用目前可用的光纤，通过简单地增加光功率来传输超过该速率的尝试将导致容量的渐进零分数增加。
英文摘要：
Current research efforts are focussed on overcoming the apparent limits of communication in single mode optical fibre resulting from distortion due to fibre nonlinearity. It has been experimentally demonstrated that this Kerr nonlinearity limit is not a fundamental limit; thus it is pertinent to review where the fundamental limits of optical communications lie, and direct future research on this basis. This paper details recently presented results. The work herein briefly reviews the intrinsic limits of optical communication over standard single mode optical fibre (SMF), and shows that the empirical limits of silica fibre power handling and transceiver design both introduce a practical upper bound to the capacity of communication using SMF, on the order of 1 Pbit/s. Transmission rates exceeding 1 Pbit/s are shown to be possible, however, with currently available optical fibres, attempts to transmit beyond this rate by simply increasing optical power will lead to an asymptotically zero fractional increase in capacity.
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