6533b83afe1ef96bd12a6f48

RESEARCH PRODUCT

Bi-color spatial solitons in linearly uncoupled planar waveguides

Gaetano AssantoAlfonso Carmelo CinoGiuseppe LeoAntonio AmorosoAndrea Di FalcoLorenzo Colace

subject

PhysicsDiffractionPhysics and Astronomy (miscellaneous)Protonbusiness.industryLithium niobatePhysics::OpticsSecond-harmonic generationNonlinear opticsTrappingMolecular physicsAtomic and Molecular Physics and Opticschemistry.chemical_compoundOpticsPlanarchemistryTensorbusiness

description

We report on the observation of spatial optical simultons in a novel geometry consisting of two partially overlapped, linearly uncoupled planar waveguides in lithium niobate obtained by reverse proton exchange. Two orthogonally polarized modes are coupled through an off-diagonal tensor element of the quadratic nonlinearity, giving rise to second harmonic generation and mutual trapping via cascading. This phenomenon demonstrates a balance between diffraction and self-focusing for two orthogonal modes of different waveguides, and occurs at room temperature in longitudinally uniform waveguides.

yearjournalcountryeditionlanguage
2004-05-01
10.1088/1464-4266/6/5/008http://hdl.handle.net/10447/11268