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Updated: Dec 9, 2025
12:18
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
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Coupling between waveguides and microresonators: the local approach
Optics Express
|September 10, 2020
Summary
Researchers developed a new method to understand the complex coupling between optical microresonators and waveguides. This technique simplifies the analysis of light interaction in photonic devices, improving their design and performance.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
Background:
- Coupling between optical microresonators and waveguides is crucial for resonant photonic devices.
- The complex behavior of this coupling is not fully understood.
- Simplified descriptions are needed for device analysis.
Purpose of the Study:
- To develop a robust methodology for experimentally determining local coupling parameters.
- To simplify the description of coupling behavior in optical microresonators and waveguides.
- To characterize coupling in a microfiber waveguide coupled to a bottle microresonator.
Main Methods:
- Numerical-fitting-based methodology for parameter determination.
- Experimental characterization of coupling regimes.
- Utilizing a microfiber waveguide and an elongated bottle microresonator.
Main Results:
- A robust method for determining local coupling parameters was developed.
- The method is applicable across all coupling regimes.
- Local coupling parameters were successfully characterized for the microfiber-bottle microresonator system.
Conclusions:
- The developed methodology provides a simplified and accurate description of coupling behavior.
- This work advances the understanding and design of resonant photonic devices.
- The local coupling parameters are independent of resonator mode distributions when variation length exceeds waveguide width.
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