Observation of dipole-like gap solitons in self-defocusing waveguide lattices.
We observe dipole-like gap solitons in two-dimensional waveguide lattices optically induced with a self-defocusing nonlinearity. Under appropriate conditions, two mutually coherent input beams excited in neighboring lattice sites evolve into a self-trapped state, whose spatial power spectrum and stability depend strongly on the initial excitation conditions. Our experimental observations are compared with numerical simulations.
Tang
Liqin
L
1The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education and TEDA Applied Physical School, Nankai University, Tianjin 300457, China.
Lou
Cibo
C
Wang
Xiaosheng
X
Song
Daohong
D
Chen
Xingyu
X
Xu
Jingjun
J
Chen
Zhigang
Z
Susanto
H
H
Law
K
K
Kevrekidis
P G
PG