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Chaotic synchronization and evolution of optical phase in a bidirectional solid-state ring laser.

L A Kotomtseva1, N V Kravtsov, E G Lariontsev

  • 1Institute of Physics, NASB, Belarus, Skaryna ave, 70, Minsk, 220072, Belarus.

Chaos (Woodbury, N.Y.)
|April 5, 2003
PubMed
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Synchronized chaos in solid-state ring lasers (SSRLs) occurs within a specific pump modulation frequency range. This study reveals regular phase jumps and the significant impact of spontaneous emission noise on SSRL dynamics.

Area of Science:

  • Nonlinear dynamics
  • Quantum optics
  • Solid-state physics

Background:

  • Solid-state ring lasers (SSRLs) are complex systems exhibiting chaotic behavior.
  • Understanding chaos synchronization in counter-propagating waves is crucial for laser stability and applications.
  • Periodic pump modulation is a key parameter influencing SSRL dynamics.

Purpose of the Study:

  • To investigate the conditions for synchronized chaos in a periodically pump-modulated SSRL.
  • To analyze the dynamics of both amplitudes and optical phases of counter-propagating waves.
  • To explore the influence of spontaneous emission noise on chaotic dynamics.

Main Methods:

  • Experimental studies involving periodic pump modulation of a solid-state ring laser.
  • Theoretical analysis using an improved semi-classical model.

Related Experiment Videos

  • Measurement of optical phase dynamics by mixing counter-propagating fields.

    • Main Results:

    • Synchronized chaos observed for pump modulation frequencies (fp) within a specific range (f1 < fp < f2).
    • Regular phase jumps identified between chaotic pulses in the synchronized chaos regime.
    • Spontaneous emission noise significantly impacts the temporal evolution of wave amplitudes.

    Conclusions:

    • The pump modulation depth determines the boundaries of the synchronized chaos region.
    • The interplay between chaos, phase dynamics, and noise is critical in SSRLs.
    • The improved theoretical model provides insights into noise effects on laser dynamics.