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Related Experiment Videos

Coupled-resonator optical waveguide: a proposal and analysis.

A Yariv1, Y Xu, R K Lee

  • 1Department of Applied Physics, California Institute of Technology, MS 128-95, Pasadena, California 91125, USA.

Optics Letters
|December 13, 2007
PubMed
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We introduce a novel coupled-resonator optical waveguide (CROW) for efficient light manipulation. This new waveguide design enables high-efficiency nonlinear optical frequency conversion and perfect transmission through bends.

Area of Science:

  • Photonics
  • Solid-state physics
  • Optical engineering

Background:

  • Traditional optical waveguides face limitations in light confinement and manipulation.
  • High-Q resonators offer localized light storage but require efficient coupling for waveguiding.

Purpose of the Study:

  • To propose and analyze a new type of optical waveguide based on coupled high-Q resonators.
  • To investigate the waveguiding properties, dispersion, and group velocity of the proposed structure.
  • To demonstrate the potential for nonlinear optical frequency conversion and signal transmission through bends.

Main Methods:

  • Utilizing a formalism analogous to the tight-binding method from solid-state physics.
  • Deriving the dispersion relations and group velocity for the photonic band structure.

Related Experiment Videos

  • Simulating and analyzing nonlinear optical effects and transmission through waveguide bends.

    • Main Results:

    • The waveguiding in the coupled-resonator optical waveguide (CROW) is achieved through weak coupling between localized high-Q cavities.
    • Dispersion and group velocity are solely characterized by the coupling factor k(1).
    • Demonstrated potential for highly efficient nonlinear optical frequency conversion and perfect transmission through bends.

    Conclusions:

    • The coupled-resonator optical waveguide (CROW) presents a novel approach to optical waveguiding.
    • The CROW structure offers unique control over light propagation, characterized by the coupling factor.
    • The demonstrated capabilities in nonlinear optics and signal integrity highlight the potential applications of CROWs.