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Dirac light bullets in nonlinear binary waveguide arrays.

Truong X Tran1, Dũng C Duong1

  • 1Department of Physics, Le Quy Don University, 236 Hoang Quoc Viet Str., 10000 Hanoi, Vietnam.

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Summary
This summary is machine-generated.

We demonstrate the formation of metastable Dirac light bullets in nonlinear binary waveguide arrays. These bullets maintain their shape over long distances despite various nonlinear effects.

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Area of Science:

  • Nonlinear optics
  • Waveguide arrays
  • Photonics

Background:

  • Nonlinear phenomena in optical systems are crucial for signal processing and light manipulation.
  • Waveguide arrays offer a platform to study complex light dynamics, including discrete solitons.

Purpose of the Study:

  • To investigate the formation and propagation dynamics of spatially broad Dirac light bullets.
  • To analyze the stability and robustness of these light bullets under various conditions.

Main Methods:

  • Numerical simulations of light propagation in nonlinear binary waveguide arrays.
  • Analysis of pulse profiles and stability over propagation distances.

Main Results:

  • Successfully formed Dirac light bullets from initial pulses with slightly altered profiles.
  • Demonstrated the metastable nature of these light bullets.
  • Showcased propagation without significant distortion over hundreds of dispersion lengths, even with Raman effect, group velocity mismatch, and dispersion differences.

Conclusions:

  • Dirac light bullets can be formed and exhibit remarkable stability in nonlinear binary waveguide arrays.
  • These findings have implications for stable light pulse propagation in complex optical systems.