| Issue |
EPL
Volume 108, Number 3, November 2014
|
|
|---|---|---|
| Article Number | 34001 | |
| Number of page(s) | 6 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/108/34001 | |
| Published online | 21 October 2014 | |
Light bullets in three-dimensional complex Ginzburg-Landau equation with modulated Kummer-Gauss photonic lattice
1 The School of Electronic and Information Engineering, HuBei University of Science and Technology Xianning 437100, China
2 Texas A&M University at Qatar - P.O. Box 23874 Doha, Qatar
3 Institute of Physics, University of Belgrade - P.O. Box 68, 11001 Belgrade, Serbia
Received: 13 September 2014
Accepted: 8 October 2014
We investigate the existence of spatiotemporal necklace vortex solitons or light bullets in the complex Ginzburg-Landau equation with the modulated Kummer-Gauss (KG) external lattice potential and the spiraling phase of vorticities 
, and 2. We find localized vortex necklaces in a three-dimensional nonlinear medium, trapped by the KG external potential with different orders of vorticity. Stable and quasi-stable solitons form from input pulses with embedded vorticity. The stability is established by calculating growth rates of the perturbed eigenmodes. We establish that spatiotemporal necklace solitons may coexist in a large domain of the parameter space.
PACS: 42.65.Tg – Optical solitons; nonlinear guided waves / 05.45.Yv – Solitons
© EPLA, 2014
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