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Fundamental information-density limits in optically amplified transmission: an entropy analysis

机译:光放大传输中的基本信息密度极限:熵分析

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摘要

Fundamental information-density limits are evaluated for amplified systems, based on entropy analysis. It is shown that in-line amplification introduces information loss, which is more important in distributed than in lumped amplification. In the absence of any other degradation (such as that which comes from dispersion and nonlinearity), spectral efficiencies of 6-14 (bits/s)/Hz represent theoretical limits for medium- and long-haul amplified systems.
机译:基于熵分析,评估放大系统的基本信息密度极限。结果表明,在线放大会引入信息丢失,这在分布式中比在集中式放大中更为重要。在没有其他任何退化(例如来自色散和非线性的退化)的情况下,6-14(bits / s)/ Hz的频谱效率代表了中长距离放大系统的理论极限。

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