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Directional coupler based on an antiresonant reflecting optical waveguide.
Optics Letters
|September 25, 2009
Summary
A new optical waveguide coupler design uses two identical antiresonant reflecting optical waveguides. This configuration allows for a remote coupler by making the coupling length dependent on waveguide separation.
Area of Science:
- Photonics
- Optical Engineering
- Waveguide Technology
Background:
- Antiresonant reflecting optical waveguides offer unique light-guiding properties.
- Waveguide couplers are essential components in integrated optical circuits for signal manipulation.
Purpose of the Study:
- To introduce a novel waveguide coupler configuration.
- To explore the relationship between coupling length and waveguide separation in this new design.
Main Methods:
- Theoretical analysis of a coupler composed of two identical antiresonant reflecting optical waveguides.
- Investigating the functional dependence of coupling length on waveguide separation.
Main Results:
- The coupling length is demonstrated to be a periodic function of the waveguide separation.
- This periodicity enables the realization of a remote coupler.
Conclusions:
- The proposed antiresonant reflecting optical waveguide coupler offers a new method for remote coupling.
- This design has potential applications in integrated photonics and optical communication systems.
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