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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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Directional coupler based on an antiresonant reflecting optical waveguide.

M Mann, U Trutschel, C Wächter

|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.

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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.