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Updated: Jun 20, 2026
09:36
Characterization of Anisotropic Leaky Mode Modulators for Holovideo
Published on: March 19, 2016
Summary
We validated effective-index method insights for index-guided arrays using a 2D Helmholtz equation. This confirms guidewidth tailoring is crucial for high-power, fundamental-mode operation in these optical devices.
Area of Science:
- Optics and Photonics
- Waveguide Array Physics
Background:
- Previous calculations used the effective-index method for index-guided arrays.
- Understanding leaky mode behavior is essential for high-power device operation.
Purpose of the Study:
- To validate previous findings using a more rigorous method.
- To investigate the mode-selection mechanism in detail.
- To confirm the impact of guidewidth tailoring on device performance.
Main Methods:
- Direct solution of the two-dimensional Helmholtz equation.
- Analysis of leaky modes in infinite periodic index-guided arrays.
Main Results:
- Validated physical insights from the effective-index method.
- Confirmed the effectiveness of guidewidth tailoring for fundamental-mode operation at high power.
- Provided new insights into the mode-selection mechanism.
Conclusions:
- A full two-dimensional treatment is necessary for accurate mode profile and gain description.
- Guidewidth tailoring is a key design parameter for high-power index-guided arrays.
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