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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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Towards broad-bandwidth polarization-independent nanostrip waveguide ring resonators.

M Erdmanis¹, L Karvonen, A Säynätjoki

¹Aalto University, Department of Micro- and Nanosciences, Tietotie 3, FI-02150 Espoo, Finland. mikhail.erdmanis@aalto.fi

|April 24, 2013

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Researchers developed a new method for broadband, polarization-independent microring resonators using titanium dioxide overlayers. This technique ensures consistent performance across different light polarizations for advanced photonic devices.

Area of Science:

Photonics and Optical Engineering
Materials Science

Background:

Microring resonators are crucial components in integrated photonics.
Achieving polarization-independent operation over a broad bandwidth remains a challenge.

Purpose of the Study:

To demonstrate a novel method for broad-bandwidth, polarization-independent microring resonator operation.
To utilize standard photonic nanostrip waveguides for enhanced performance.

Main Methods:

Selective atomic layer deposition (ALD) of titanium dioxide (TiO2) overlayers.
Engineering specific dispersion properties into the waveguide structure.
Matching the wavelength dependencies of free spectral ranges for orthogonal polarizations.

Main Results:

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Successfully achieved broad-bandwidth operation.
Demonstrated polarization-independent performance.
Highly uniform TiO2 overlayers with tailored dispersion properties were formed.

Conclusions:

The proposed method enables robust and versatile microring resonator operation.
This technique is compatible with standard photonic fabrication processes.
Offers a pathway for advanced optical communication and sensing applications.