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Ray optics model for triangular hollow silicon waveguides.

George Isaac1, Diaa Khalil

  • 1Faculty of Engineering, Ain Shams University, Abbassia, Cairo, Egypt. george.issac@ieee.org

Applied Optics
|October 28, 2006
PubMed
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New silicon V grooves offer low-loss hollow waveguides for optical microelectromechanical systems. A developed ray optics model simplifies the design of these easily fabricated guides for optimal performance.

Area of Science:

  • Optics
  • Materials Science
  • Microelectromechanical Systems (MEMS)

Background:

  • Hollow waveguides are crucial for integrated optics and optical microelectromechanical systems (MEMS).
  • Existing waveguide designs often face challenges with fabrication complexity and optical loss.
  • There is a need for efficient and easily manufacturable waveguide solutions for optical MEMS.

Purpose of the Study:

  • To propose and analyze closed silicon V grooves as novel hollow waveguides.
  • To investigate the potential for very low loss for the fundamental mode in these structures.
  • To develop a simplified design methodology for these waveguides.

Main Methods:

  • Development of a ray optics model for analyzing optical losses in V groove waveguides.

Related Experiment Videos

  • Validation of the ray optics model using the beam propagation method.
  • Derivation of approximate design equations for fundamental mode losses.

    • Main Results:

    • Closed silicon V grooves demonstrate suitability as hollow waveguides for optical MEMS.
    • The proposed structures allow for large index contrast and potentially very low loss.
    • The developed ray optics model accurately predicts losses and simplifies the design process.

    Conclusions:

    • Silicon V grooves represent a promising new platform for low-loss hollow waveguides in optical MEMS.
    • The simplified design approach facilitates the development and optimization of these waveguides.
    • This research contributes to advancements in integrated optics and microfabrication technologies.