In this paper, the effect of quintic nonlinearity on modulational instability in the anomalous dispersion regime of self focusing fiber from extended nonlinear Schrodinger equation is considered.

• 从带五次非线性项的扩展非线性薛定谔方程出发,重点考虑了五次非线性对常用的自聚焦光纤中反常色散区调制不稳定性的影响。