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Updated: Jul 9, 2026
09:36
Characterization of Anisotropic Leaky Mode Modulators for Holovideo
Published on: March 19, 2016
Summary
This study models UV-induced refractive index changes in planar waveguides using an exponential profile. Air-covered waveguides show less sensitivity to UV-written profiles compared to buried ones.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Photosensitive planar waveguides are crucial optical components.
- Understanding UV-induced refractive index changes is key for device fabrication.
Purpose of the Study:
- To model UV-induced refractive index profiles in planar waveguides.
- To analyze the optical properties and mode behavior of these waveguides.
Main Methods:
- Modeling the refractive index increase with an exponential profile.
- Deriving closed-form field solutions for TE and TM modes.
- Calculating dispersion curves.
Main Results:
- An exponential profile accurately models UV-induced refractive index changes.
- Dispersion curves for TE and TM modes were successfully calculated.
- Air-covered waveguides exhibit reduced sensitivity to UV-written profiles compared to buried waveguides.
Conclusions:
- The exponential model provides a valid framework for analyzing UV-written waveguides.
- Waveguide design (air-covered vs. buried) impacts mode sensitivity to refractive index modifications.
- This research aids in the design and optimization of photonic devices fabricated with UV-written waveguides.
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