Electrical post-compensation of intrachannel nonlinearities in 10GBaud coherent QPSK transmission systems
Electrical post-compensation of intrachannel nonlinearities in 10GBaud coherent QPSK transmission systems
复制标题
DOI：
10.1016/j.optcom.2008.11.012
复制
发表时间：
2009-03
影响因子：
2.4
通讯作者：
Yan Gao;Fan Zhang;Liang Dou;Zhangyuan Chen;A. Xu
中科院分区：
文献类型：
--
作者：
Yan Gao;Fan Zhang;Liang Dou;Zhangyuan Chen;A. Xu
提出了10GBaud相干QPSK传输系统中信道内非线性的电后补偿方法。信道反演方法通过接收器侧的数字信号处理用粗分步傅立叶算法来实现。仿真结果表明，该方法可以在简化信号处理结构的情况下实现对信道内非线性和色散的同时补偿。当信道内非线性引起的损伤占主导地位时，在一定误码率下所需的光信噪比显著降低。
Electrical post-compensation of intrachannel nonlinearities in 10GBaud coherent QPSK transmission systems is proposed. The channel inversion method is implemented with a coarse split-step Fourier algorithm through digital signal processing at the receiver side. Simulation results show that simultaneous compensation of intrachannel nonlinearities and chromatic dispersion can be achieved with much simplified signal processing structure. The required optical signal-to-noise ratio at certain bit error ratio is remarkably reduced when the intrachannel nonlinearities induced impairments are dominant.