Gap random-phase lattice solitons | Zendy

Robert Pezer | Zendy; Hrvoje Buljan | Zendy; Jason W. Fleischer | Zendy; Guy Bartal | Zendy; Oren Cohen | Zendy; Mordechai Segev | Zendy

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Gap random-phase lattice solitons

Author(s) -

Robert Pezer,

Hrvoje Buljan,

Jason W. Fleischer,

Guy Bartal,

Oren Cohen,

Mordechai Segev

Publication year - 2005

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.005013

Subject(s) - physics , optics , lattice (music) , coherence (philosophical gambling strategy) , nonlinear system , spectral density , quantum mechanics , mathematics , acoustics , statistics

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 be generated when a simple incoherent beam with bell-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.

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