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Updated: Jun 16, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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High resolution lenses for optical waveguides.

E Spiller, J S Harper

|February 6, 2010

Summary

This summary is machine-generated.

Combining mode index lenses and waveguide lenses with opposite aberrations significantly reduces optical aberrations. This method requires only minor differences in mode index for optimal aberration correction in optical elements.

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Area of Science:

Optics and Photonics
Materials Science

Background:

Waveguide lenses are crucial optical components.
Aberrations limit the performance of optical systems.
Spherical depressions in waveguide substrates offer unique optical properties.

Purpose of the Study:

To investigate the combination of mode index lenses and waveguide lenses.
To reduce optical aberrations in integrated optical elements.
To determine the conditions for optimal aberration correction.

Main Methods:

Designing a combined optical element integrating a mode index lens and a lens with a spherical depression in a waveguide substrate.
Analyzing the aberrations of individual components and the combined element.
Varying the mode index difference between the components.

Main Results:

The combined element exhibits significantly reduced aberrations compared to individual components.
Opposite aberrations of the mode index lens and the spherical depression lens cancel each other out.
Optimal aberration reduction is achieved with small differences in the mode index.

Conclusions:

Combining mode index lenses and waveguide lenses with spherical depressions is an effective strategy for aberration reduction.
This approach offers a pathway to high-performance integrated optical devices.
The findings are applicable to the design of advanced photonic components.