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Summary
This summary is machine-generated.

We observed nondispersive solitary waves with a 2π phase rotation in a ring semiconductor laser. These structures exhibit a stable chiral charge, influencing phase soliton motion and revealing parity symmetry impacts in optical systems.

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Area of Science:

  • Nonlinear optics
  • Quantum optics
  • Semiconductor lasers

Background:

  • Ring semiconductor lasers exhibit complex dynamics.
  • Solitary waves and phase solitons are crucial in nonlinear systems.
  • Chiral charge phenomena are observed in various physical systems.

Purpose of the Study:

  • To experimentally demonstrate nondispersive solitary waves in a forced multimode ring semiconductor laser.
  • To investigate the properties and stability of chiral charge associated with these waves.
  • To explore the influence of parity symmetry on optical phenomena.

Main Methods:

  • Experimental setup of a strongly multimode ring semiconductor laser with coherent forcing.
  • Numerical simulations using effective Maxwell-Bloch equations.
  • Reduction of the model to a modified Ginzburg-Landau equation.

Main Results:

  • Experimental observation of nondispersive solitary waves with a 2π phase rotation.
  • Identification of a stable chiral charge within these solitary wave structures.
  • Numerical confirmation of chiral charge stability and its effect on phase soliton dynamics.
  • Demonstration of the impact of broken parity symmetry on propagative optical systems.

Conclusions:

  • Nondispersive solitary waves with chiral charge exist in forced ring semiconductor lasers.
  • Chiral charge stability dictates phase soliton motion.
  • The modified Ginzburg-Landau model highlights the role of parity symmetry in optical systems.