Pelusi Mark D, Eggleton Benjamin J
Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, NSW 2006, Australia.
Opt Express. 2012 Mar 26;20(7):8015-23. doi: 10.1364/OE.20.008015.
We demonstrate a nonlinear signal processing approach for compensating nonlinear distortion caused by the Kerr effect in optical fiber transmission. The concept relies on propagating the signal through a separate all-optical module outside the link to apply tunable nonlinear distortion and phase-conjugation in series. We show this uniquely enables tunable regeneration of phase-encoded 40 Gb/s signals of different data-formats and number of WDM channels, to allow significantly higher transmission powers through single and multi-span fiber links. An improvement in the receiver power penalty by 3~4 dB for a bit-error-rate (BER) of ≈10⁻⁵ is achieved.
我们展示了一种用于补偿光纤传输中克尔效应所引起的非线性失真的非线性信号处理方法。该概念依赖于使信号通过链路外一个单独的全光模块进行传输，以便串联应用可调谐非线性失真和相位共轭。我们表明，这独特地实现了对不同数据格式和波分复用（WDM）通道数量的相位编码40 Gb/s信号的可调谐再生，从而允许通过单跨段和多跨段光纤链路使用显著更高的传输功率。对于约10⁻⁵的误码率（BER），接收端功率代价降低了3至4 dB。
