Kuznetsov–Ma soliton and Akhmediev breather of higher-order nonlinear Schrödinger equation
Li Zai-Dong1, †, , Wu Xuan1, Li Qiu-Yan1, He P B2
       

(a) Evolution of the maximum intensity (red curve), the minimum intensity (blue curve), and the intensity of cw background (solid curve) of the solution in Eq. (8); (b) location of the maximum intensity (solid curve) and the minimum intensity (dotted curve) in the time-propagation-distance plane. The parameters are the same as in Fig.1.