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

Evolution of the soliton’s peak position shift of the single soliton in Eq. (10) with and without the higher-order effects at (a)z= 0.5, (b)z= 2.5, (c)z= 4.2, and (d)z= 7.2, respectively. The parameters areα= 0.05,γ= 0.025 (blue curves); andα=γ= 0 (red curve),As= 0.5,Ac= 0.9. The other parameters are the same as in Fig.1.