The transmission limitations for high bit rate amplified systems due to a nonlinear effect known as Modulation Instability (MI) are presented. Experimental results for a 20Gbit/s 560km amplified system show a decrease in Signal-to-Noise Ratio (SNR) of 8.5dB when operated 5nm into the anomalous, compared to 5nm into the normal, dispersion regime.
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机译：呈现了称为调制不稳定（MI）的非线性效应导致的高比特率放大系统的传输限制。 20Gbit / s 560km放大系统的实验结果表明，当在正常，分散制度的5nm相比，在向异常中操作5nm时，8.5db的信噪比（SNR）的降低。
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