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Related Experiment Videos

Directional coupler based on radiatively coupled waveguides.

M Shamonin1, M Lohmeyer, P Hertel

  • 1Department of Physics, University of Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany.

Applied Optics
|January 20, 1997
PubMed
Summary
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This study explores radiatively coupled waveguides for remote coupling applications. Researchers developed a perturbation theory and analyzed multimode interference to design an effective integrated optical polarization splitter.

Area of Science:

  • Optics and Photonics
  • Integrated Optics
  • Waveguide Theory

Background:

  • Radiatively coupled waveguides, sharing a common substrate, offer unique remote coupling capabilities.
  • Understanding the behavior of transverse electric (TE) and transverse magnetic (TM) polarized light in these systems is crucial for optical device design.

Purpose of the Study:

  • To investigate the characteristics of radiatively coupled waveguides.
  • To develop and validate a perturbation theory for analyzing TE and TM modes.
  • To propose an effective integrated optical TE-TM polarization splitter design.

Main Methods:

  • Development of a perturbation theory for TE and TM polarizations.
  • Numerical calculation of dispersion curves and coupling length.

Related Experiment Videos

  • Analysis of multimode interference effects on field propagation.

    • Main Results:

    • The perturbation theory's limitations were determined through numerical analysis.
    • The influence of multimode interference on beating phenomena was studied.
    • A novel design for an effective integrated optical TE-TM polarization splitter was proposed.

    Conclusions:

    • Radiatively coupled waveguides provide a viable platform for remote coupling.
    • The developed perturbation theory offers insights into waveguide behavior.
    • The proposed polarization splitter design shows promise for integrated optics applications.