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Updated: May 28, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Vortex twins and anti-twins supported by multiring gain landscapes
O V Borovkova1, Y V Kartashov, V E Lobanov
1ICFO-Institut de Ciencies Fotoniques, and Universitat Politecnica de Catalunya, Mediterranean Technology Park, 08860, Castelldefels (Barcelona), Spain. Olga.Borovkova@icfo.es
Researchers explored stable multivortex soliton complexes in nonlinear optical media. They found that vortex arrangements and gain landscapes influence the stability and symmetry of these complex light structures.
Area of Science:
- Nonlinear optics
- Optical physics
- Complex systems
Background:
- Multivortex soliton complexes are intricate light structures.
- Their stability is crucial for optical applications.
- Nonlinear media with gain and absorption present unique challenges.
Purpose of the Study:
- To investigate the properties of multivortex soliton complexes.
- To explore the influence of multiring gain landscapes on soliton stability.
- To analyze the impact of two-photon absorption on complex formation.
Main Methods:
- Numerical simulations of light propagation in nonlinear media.
- Analysis of soliton complex stability under varying gain and absorption conditions.
- Investigation of vortex charge configurations (identical and opposite).
Main Results:
- Stable multivortex soliton complexes with 2-4 vortices were demonstrated.
- The arrangement of vortices (identical or opposite topological charges) affects complex symmetry.
- Gain level and ring separation critically influence the symmetry of vortex anti-twins.
Conclusions:
- Multiring gain landscapes can support stable multivortex soliton complexes.
- The topological charge configuration and gain parameters are key to controlling complex properties.
- This work provides insights into the formation and control of complex light structures in nonlinear media.
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