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Related Experiment Videos

Two-dimensional optical ring resonators based on radial Bragg resonance.

Jacob Scheuer1, Amnon Yariv

  • 1Department of Applied Physics, 128-95 California Institute of Technology, Pasadena, California 91125, USA. koby@caltech.edu

Optics Letters
|September 6, 2003
PubMed
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This study introduces a Bragg-reflection ring resonator for enhanced optical control. It enables compact designs with tunable dispersion, large free spectral range, and minimal radiation loss.

Area of Science:

  • Optics and Photonics
  • Materials Science

Background:

  • Ring resonators are fundamental in integrated photonics.
  • Achieving precise control over dispersion and miniaturization remains a challenge.

Purpose of the Study:

  • To propose and analyze a novel Bragg-reflection-based ring resonator.
  • To investigate the use of radial Bragg gratings for resonator design.

Main Methods:

  • Derivation of closed-form expressions for field and dispersion.
  • Analysis of radial Bragg gratings with chirped periods and varying index profiles.
  • Theoretical prediction of resonator performance.

Main Results:

  • Bragg confinement enables small bending radii and strong dispersion control.

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  • Predicted large free spectral range.
  • Predicted low radiation loss.

    • Conclusions:

    • The proposed Bragg-reflection ring resonator offers significant advantages for integrated photonic devices.
    • This design facilitates miniaturization and enhanced optical performance.