“…The first-order rational solution of the self-focusing nonlinear Schödinger equation was first found by Peregrine to describe the roguewaves phenomenon (Peregrine, 1983). Recently, by means of the Darboux transformation and Hirota bilinear method, rogue wave solutions have been investigated in many complex systems (Tao and He, 2012; Guo et al , 2012; Zhao and Liu, 2013; Yan et al , 2018b; Tian, 2018a; Wang et al , 2018b; Wang et al , 2018c; Qin et al , 2018a; Qin et al , 2018b; Wang et al , 2018a; Yan et al , 2018a; Dong et al , 2018; Feng et al , 2017b; Wang et al , 2017d; Feng and Zhang, 2018; Wang et al , 2017a; Wang et al , 2017b; Qin et al , 2018c; Chen et al , 2015a; Liu et al , 2015; Chen et al , 2015b).…”