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Silicon-on-insulator irregular waveguide mode converters.

Hua-Tsai Chen¹, Kevin J Webb

¹School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907-2035, USA.

|June 24, 2006

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New irregular waveguide designs on silicon-on-insulator enable novel optical integrated circuits. These devices, optimized using a multiresolution strategy, offer high efficiency in compact dimensions for mode conversion and power splitting.

Area of Science:

Photonics and Optical Engineering
Integrated Optics
Materials Science

Background:

Silicon-on-insulator (SOI) platforms are crucial for integrated optics.
Developing novel waveguide structures is key to advancing optical device functionality.
Existing designs often face limitations in achieving complex functions within small footprints.

Purpose of the Study:

To introduce irregular waveguide elements for novel device concepts on SOI.
To demonstrate a multiresolution optimization strategy for designing these elements.
To present simulation results for key optical components.

Main Methods:

Utilizing a multiresolution optimization strategy.
Varying waveguide width in stepwise increments for precise design.

Related Experiment Videos

Performing simulations at a wavelength of 1.55 micrometers.

Main Results:

Demonstrated high-efficiency waveguide mode converters.
Achieved efficient power splitters.
Developed effective waveguide transitions with small dimensions.

Conclusions:

Irregular waveguide elements offer new possibilities for optical integrated circuits.
The multiresolution optimization strategy enables efficient and compact device designs.
These devices are promising candidates for advanced optical integrated circuits.