随着传输容量和传输距离的增大,光纤克尔非线性效应越来越明显,已成为目前限制光纤通信系统性能的主要因素。详细介绍了数字向后传播算法、微扰法等光纤通信中克尔非线性补偿技术的基本原理,分析了这些技术的发展现状,比较和总结了各算法的优缺点,对各技术的应用前景进行了展望。

As the transmission capacity and distance increase, Kerr nonlinearity becomes more and more obvious, which is currently becoming a major factor limiting the fiber transmission performances. The basic principles of some techniques for fiber Kerr nonlinearity compensation in fiber communications are introduced in detail, such as the digital backward propagation algorithm and the perturbation-based nonlinear compensation method. The development status of these technologies is reviewed. The advantages and disadvantages of each algorithm are also presented. Furthermore, the trend and potential applications of these technologies are prospected.