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Finite mode analysis through harmonic waveguides

Alieva1, Wolf

  • 1Centro Internacional de Ciencias, Cuernavaca, Mexico.

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|August 10, 2000
PubMed
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This study presents an optoelectronic device for analyzing signals in shallow harmonic waveguides. The device uses optical sensing and electronic fast Fourier transform for mode analysis, demonstrated with the Kravchuk transform.

Area of Science:

  • Photonics and Waveguide Technology
  • Signal Processing
  • Applied Mathematics

Background:

  • Multimodal shallow harmonic waveguides exhibit equally spaced, finite eigenfrequencies.
  • Analyzing signal modes in such waveguides is crucial for various applications.
  • Existing methods may lack efficiency or require complex setups.

Purpose of the Study:

  • To introduce an optoelectronic device for efficient mode analysis of signals in multimodal shallow harmonic waveguides.
  • To demonstrate the device's capability using the Kravchuk transform.

Main Methods:

  • The optical component samples the wave field using sensors along the waveguide axis.
  • The electronic component performs a fast Fourier transform on the sampled data.
  • The Kravchuk transform is employed to illustrate the analysis process.

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Main Results:

  • The proposed optoelectronic device successfully performs mode analysis.
  • The method is validated through its application with the Kravchuk transform.
  • Demonstrated efficient signal processing in the specified waveguide type.

Conclusions:

  • Optoelectronic devices offer a viable solution for mode analysis in shallow harmonic waveguides.
  • The integration of optical sensing and fast Fourier transform provides an effective analytical tool.
  • The Kravchuk transform serves as a useful tool for demonstrating such analyses.