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Model for distributed feedback Brillouin lasers.

Herbert G Winful1, Irina V Kabakova, Benjamin J Eggleton

  • 1Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, Sydney, NSW 2007, Australia. arrays@umich.edu

Optics Express
|July 12, 2013
PubMed
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We developed a propagation model for distributed feedback Brillouin lasers. This model accurately predicts performance in silica fiber and suggests potential for centimeter-long devices in chalcogenide materials.

Area of Science:

  • Photonics and Laser Technology
  • Nonlinear Optics
  • Materials Science

Background:

  • Distributed feedback (DFB) lasers offer wavelength selectivity.
  • Brillouin lasers utilize stimulated Brillouin scattering for light generation.
  • Integrating DFB mechanisms with Brillouin gain is crucial for advanced laser design.

Purpose of the Study:

  • To develop and validate a propagation model for DFB Brillouin lasers.
  • To analyze the performance of DFB Brillouin lasers in different nonlinear media.
  • To explore the potential for miniaturized and efficient Brillouin laser systems.

Main Methods:

  • Formulation of a comprehensive propagation model for DFB Brillouin laser dynamics.
  • Application of the model to a DFB Brillouin laser featuring a π-phase shifted grating in nonlinear silica fiber.

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  • Simulation of DFB Brillouin lasers utilizing chalcogenide materials.

    • Main Results:

    • The model's steady-state predictions align with experimental data for threshold and efficiency in silica-based lasers.
    • Simulations indicate sub-milliwatt threshold powers for DFB Brillouin lasers in chalcogenide.
    • The study demonstrates the feasibility of centimeter-long Brillouin-DFB devices.

    Conclusions:

    • The developed propagation model is a reliable tool for understanding and designing DFB Brillouin lasers.
    • Chalcogenide materials offer promising avenues for highly efficient and compact Brillouin laser development.
    • This work paves the way for novel integrated photonic devices leveraging Brillouin-DFB principles.