“…Defects in PL can be formed by changing the value of refractive index in certain WG or by changing the width of the WG or the distance between WGs ( (Meier et al, 2005), (Morandotti et al, 2003)). These defects destroy the translation symmetry of the system but, at the same time, they enable the existence of different stable, localized modes ( (Beličev et al, 2010), (Fedele et al, 2005), (Molina et al, 2008)). Recently, the influence of nonlinear defect (ND) on the light beam propagation in one-dimensional (1D) linear uniformed lattice has been investigated (Kuzmanović et al, 2015a) as well as the influence of linear defect (LD) and interface defect on the beam dynamics (Stojanović Krasić et al, 2016).…”