Evolution of dark solitons in the presence of Raman gain and self-steepening effect
Yu Yu, Jia Wei-Guo†, Yan Qing, Menke Neimule, Zhang Jun-Ping
       
Temporal evolutions of the second-order dark soliton, which are visible under different pulse shapes for soliton periods at z / z 0 = 1, 2, 3, respectively.