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Multimode lasing in two-dimensional fully chaotic cavity lasers.

Satoshi Sunada1, Takahisa Harayama, Kensuke S Ikeda

  • 1Department of Nonlinear Science, ATR Wave Engineering Laboratories, 2-2-2 Hikaridai Seika-cho, Soraku-gun, Kyoto 619-0288, Japan.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|May 21, 2005
PubMed
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This study numerically investigates multimode lasing in chaotic cavities, revealing mode interactions that reduce effective lasing modes. Different attractor types coexist in the final lasing states.

Area of Science:

  • Nonlinear dynamics
  • Quantum optics
  • Laser physics

Background:

  • Understanding multimode lasing dynamics is crucial for laser applications.
  • Chaotic cavities present unique challenges for stable laser operation.
  • Interactions between lasing modes significantly influence output characteristics.

Purpose of the Study:

  • To numerically investigate multimode lasing in a fully chaotic cavity.
  • To analyze the transition from single-mode to multimode lasing.
  • To reveal and characterize interactions among lasing modes.

Main Methods:

  • Utilizing a nonlinear dynamics model for numerical simulations.
  • Analyzing the transition dynamics from single-mode to multimode lasing.
  • Investigating mode-pulling and mode-pushing effects on lasing modes.

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Main Results:

  • Observed a transition process from single-mode to multimode lasing.
  • Identified mode-pulling and mode-pushing interactions among lasing modes.
  • Demonstrated that these interactions decrease the number of effective lasing modes.
  • Confirmed the coexistence of different types of attractors for the final lasing states.

Conclusions:

  • Mode interactions play a critical role in shaping multimode lasing in chaotic cavities.
  • Mode-pulling and mode-pushing effects can limit the number of active lasing modes.
  • Chaotic cavities can support diverse and complex lasing states.