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Subdiffractive discrete cavity solitons.

O Egorov¹, F Lederer, K Staliunas

¹Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany. oleg@pinet.uni-jena.de

|August 3, 2007

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We discovered novel discrete cavity solitons in nonlinear waveguide arrays. These stable solitons, driven by an inclined beam, exist in both bright and dark forms for focusing and defocusing Kerr nonlinearities.

Area of Science:

Nonlinear optics
Photonics
Condensed matter physics

Background:

Discrete cavity solitons are localized nonlinear modes in periodic structures.
Nonlinear waveguide arrays support complex optical phenomena.
External driving beams can control soliton dynamics.

Purpose of the Study:

To introduce and characterize novel discrete cavity solitons in driven nonlinear waveguide arrays.
To investigate the role of an inclined holding beam in soliton formation.
To explore soliton behavior under focusing and defocusing Kerr nonlinearities.

Main Methods:

Theoretical modeling of nonlinear waveguide arrays.
Numerical simulations of soliton dynamics.
Analysis of system parameters influencing stability and formation.

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Main Results:

Demonstration of stable discrete cavity solitons driven by an inclined holding beam.
Identification of a subdiffractive regime enabling soliton formation.
Prediction of both bright and dark moving midband solitons.

Conclusions:

Novel discrete cavity solitons are achievable in driven nonlinear waveguide arrays.
Inclined holding beams are crucial for stable soliton formation.
The system exhibits versatile soliton behavior applicable to both focusing and defocusing nonlinearities.