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Related Experiment Video

Updated: Feb 19, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Published on: April 1, 2020

Silicon waveguide optical switch with embedded phase change material.

Kevin J Miller, Kent A Hallman, Richard F Haglund

|November 3, 2017

Summary

This summary is machine-generated.

We developed a novel silicon photonic switch using phase-change materials (PCMs). This hybrid device integrates vanadium dioxide within silicon waveguides for efficient optical switching.

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Area of Science:

Photonics
Materials Science
Nanotechnology

Background:

Silicon photonics offers a platform for integrated optical circuits.
Phase-change materials (PCMs) exhibit tunable optical properties.
Integrating PCMs with silicon photonics is a key challenge.

Purpose of the Study:

To design, fabricate, and characterize a hybrid silicon-phase-change material optical switch.
To demonstrate the feasibility of using PCMs in non-resonant silicon photonic devices.
To achieve broadband optical contrast for optical switching applications.

Main Methods:

Fabrication of a hybrid silicon photonic waveguide.
Integration of vanadium dioxide (a PCM) into the silicon waveguide.
Optical characterization using thermal actuation.

Main Results:

Achieved approximately 10 dB broadband optical contrast.
Demonstrated successful integration of vanadium dioxide in a non-resonant geometry.
Utilized thermal actuation for switching functionality.

Conclusions:

Hybrid silicon-PCM devices are effective for optical switching.
Vanadium dioxide is a suitable PCM for silicon photonic applications.
The developed switch shows promise for future integrated photonic circuits.