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Related Experiment Video

Updated: Aug 4, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

On-chip wavelength division multiplexing filters using extremely efficient gate-driven silicon microring resonator

Wei-Che Hsu¹, Nabila Nujhat¹, Benjamin Kupp¹

¹School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331, USA.

Scientific Reports

|March 31, 2023

Summary

This summary is machine-generated.

This study introduces gate-tunable silicon microring resonators (Si-MRRs) for wavelength division multiplexing (WDM) filters. These filters offer precise wavelength control with minimal power consumption, overcoming temperature and fabrication sensitivities.

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Related Experiment Videos

Last Updated: Aug 4, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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Published on: April 4, 2017

Fabrication of Silica Ultra High Quality Factor Microresonators

Fabrication of Silica Ultra High Quality Factor Microresonators

Published on: July 2, 2012

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Area of Science:

Photonics and Optical Engineering
Materials Science
Integrated Optics

Background:

Silicon microring resonators (Si-MRRs) are crucial for on-chip wavelength division multiplexing (WDM) due to their small size and low power usage.
Si-MRRs are highly sensitive to temperature and fabrication variations, necessitating active wavelength control.
Current control methods, like PIN diodes or thermal heaters, are power-intensive.

Purpose of the Study:

To demonstrate a novel gate-tuning method for Si-MRR-based WDM filters.
To achieve precise and low-power wavelength control across a wide range.
To overcome the limitations of existing wavelength stabilization techniques.

Main Methods:

Utilized an array of Si-MRRs integrated with high-mobility titanium-doped indium oxide (ITiO) gates.
Experimentally demonstrated gate-tuning for wavelength control.
Configured four cascaded ITiO-driven Si-MRRs to form WDM filters.

Main Results:

Achieved unprecedented wavelength tunability of up to 589 pm/V with a VπL of 0.050 V cm.
Maintained a high-quality factor of 5200 for the resonators.
Demonstrated continuous tuning across the 1543-1548 nm wavelength range with near-zero power consumption.

Conclusions:

Gate-tuning using ITiO offers an effective and energy-efficient solution for precise wavelength control in Si-MRR WDM systems.
This approach significantly reduces power consumption compared to traditional methods.
The demonstrated technology enables robust and tunable on-chip WDM filters for advanced optical communication systems.