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Chaotic dynamics and synchronization in microchip solid-state lasers with optoelectronic feedback.

Atsushi Uchida1, Keisuke Mizumura, Shigeru Yoshimori

  • 1Department of Electronics and Computer Systems, Takushoku University, 815-1 Tatemachi, Hachioji, Tokyo 193-0985, Japan.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|February 7, 2007
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Researchers observed chaotic oscillations in a two-mode Nd:YVO4 microchip solid-state laser using optoelectronic feedback. They also achieved synchronization in mutually coupled lasers, demonstrating complex dynamics in solid-state lasers.

Area of Science:

  • Nonlinear dynamics
  • Laser physics
  • Optoelectronics

Background:

  • Solid-state lasers exhibit complex dynamics under feedback.
  • Optoelectronic feedback offers a method to control laser behavior.
  • Understanding chaotic regimes is crucial for laser applications.

Purpose of the Study:

  • To experimentally investigate the dynamics of a two-mode Nd:YVO4 microchip laser with optoelectronic feedback.
  • To explore the behavior of mutually coupled microchip lasers with optoelectronic links.
  • To identify conditions leading to chaotic oscillations and synchronization.

Main Methods:

  • Utilized a two-mode Nd:YVO4 microchip solid-state laser.
  • Implemented optoelectronic self-feedback by connecting laser output to pumping current.

Related Experiment Videos

  • Investigated mutual coupling between two microchip lasers via optoelectronic links.

    • Main Results:

    • Observed chaotic oscillations in the microchip laser with optoelectronic self-feedback.
    • Chaotic fluctuations were induced in mutually coupled lasers when relaxation oscillation frequencies were similar.
    • Synchronization of periodic waveforms was achieved in single-longitudinal mode coupled lasers.

    Conclusions:

    • Optically induced chaos is achievable in microchip solid-state lasers.
    • Mutual optoelectronic coupling can lead to complex dynamics, including chaos and synchronization.
    • Laser parameters, like relaxation oscillation frequency, significantly influence coupled dynamics.