Gap random-phase lattice solitons

TY - JOUR

T1 - Gap random-phase lattice solitons

AU - Pezer, Robert

AU - Buljan, Hrvoje

AU - Fleischer, Jason W.

AU - Bartal, Guy

AU - Cohen, Oren

AU - Segev, Mordechai

PY - 2005/6/27

Y1 - 2005/6/27

N2 - We theoretically study gap random-phase lattice solitons (gap-RPLSs) in nonlinear waveguide arrays with self-defocusing nonlinearity. We find that the intensity structure and statistical (coherence) properties of gap-RPLSs conform to the lattice periodicity, while their Floquet-Bloch power spectrum is multi-humped with peaks in the anomalous diffractions regions. It is shown that a gap-RPLS can he generated when a simple incoherent beam with hell-shaped power spectrum and single-hump intensity is launched at a proper angle into the waveguide array. The input incoherent beam evolves in the lattice while shedding off some radiation, and eventually attains the features of gap-RPLS.

AB - We theoretically study gap random-phase lattice solitons (gap-RPLSs) in nonlinear waveguide arrays with self-defocusing nonlinearity. We find that the intensity structure and statistical (coherence) properties of gap-RPLSs conform to the lattice periodicity, while their Floquet-Bloch power spectrum is multi-humped with peaks in the anomalous diffractions regions. It is shown that a gap-RPLS can he generated when a simple incoherent beam with hell-shaped power spectrum and single-hump intensity is launched at a proper angle into the waveguide array. The input incoherent beam evolves in the lattice while shedding off some radiation, and eventually attains the features of gap-RPLS.

UR - http://www.scopus.com/inward/record.url?scp=22744451019&partnerID=8YFLogxK

U2 - 10.1364/OPEX.13.005013

DO - 10.1364/OPEX.13.005013

M3 - 文章

AN - SCOPUS:22744451019

SN - 1094-4087

VL - 13

SP - 5013

EP - 5023

JO - Optics Express

JF - Optics Express

IS - 13

ER -