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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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Published on: November 30, 2012

Confining light flow in weakly coupled waveguide arrays by structuring the coupling constant: towards discrete

Nadia Belabas¹, Sophie Bouchoule, Isabelle Sagnes

¹Laboratory of Photonics and Nanostructures -UPR20 CNRS, Route de Nozay, Marcoussis, F-91460, France. nadia.belabas@lpn.cnrs.fr

|March 5, 2009

Summary

This summary is machine-generated.

Researchers controlled light flow in semiconductor waveguide arrays by patterning the coupling constant. This method, validated by fabrication, enables light confinement in specific areas of optical devices.

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Area of Science:

Optics and Photonics
Materials Science
Semiconductor Physics

Background:

Coupled waveguide arrays are fundamental structures for manipulating light propagation.
Controlling light flow in discrete optical systems is crucial for advanced photonic devices.
Patterning the coupling constant offers a novel approach to tailor light-matter interactions.

Purpose of the Study:

To investigate the effect of a patterned coupling constant on light propagation in waveguide arrays.
To demonstrate the efficacy of coupled mode theory in designing such structures.
To achieve controlled light confinement within specific regions of semiconductor waveguide arrays.

Main Methods:

Utilizing coupled mode theory for the design and simulation of waveguide arrays with patterned coupling constants.
Fabricating III-V semiconductor patterned waveguide arrays based on theoretical designs.
Experimentally demonstrating light confinement in the fabricated structures.

Main Results:

Successful design and simulation of waveguide arrays with a patterned coupling constant.
Fabrication of III-V semiconductor waveguide arrays validating the design approach.
Experimental evidence of light confinement in designated areas of the 1D waveguide arrays.

Conclusions:

Coupled mode theory is a practical and reliable tool for designing patterned coupling constants in waveguide arrays.
Patterned coupling constants provide effective control over light flow in discrete optical structures.
The demonstrated light confinement paves the way for novel photonic device applications.