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Related Experiment Video

Updated: Feb 2, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Quantum frequency conversion for multiplexed entangled states generated from micro-ring silicon chip.

Yin-Hai Li, Wen-Tan Fang, Zhi-Yuan Zhou

|November 25, 2018

Summary

This summary is machine-generated.

Researchers developed a quantum interface using silicon photonics to transfer quantum states between systems. This technology enhances quantum communication capacity and enables seamless quantum resource transfer.

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Last Updated: Feb 2, 2026

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Published on: June 8, 2018

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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

Area of Science:

Quantum optics
Integrated photonics
Quantum information science

Background:

Silicon-on-chip photonic circuits offer low loss and CMOS compatibility for quantum state generation.
Dense wavelength division multiplexing (DWDM) is crucial for increasing communication capacity.
A quantum interface is needed to connect silicon photonics with other quantum systems like quantum memories.

Purpose of the Study:

To demonstrate a quantum interface for multiplexed energy-time entanglement states.
To enable frequency conversion for bridging spectral gaps between quantum systems.
To enhance channel capacity in quantum communications.

Main Methods:

Generation of energy-time entanglement on a silicon micro-ring cavity.
Utilizing frequency up-conversion for quantum state manipulation.
Employing tunable pump wavelength for channel selection.
Verification of entanglement preservation via two-photon interference visibility measurements.

Main Results:

Successful demonstration of a quantum interface for multiplexed energy-time entanglement.
Demonstrated selection of entanglement from different channels via pump wavelength switching.
High visibility of two-photon interference across three channels after quantum frequency conversion (QFC).
Confirmation that entanglement is preserved during the QFC process.

Conclusions:

The developed quantum interface effectively bridges frequency gaps between silicon photonics and other quantum systems.
This technology offers new possibilities for enhancing quantum communication channel capacity.
Facilitates the transfer of quantum resources between disparate quantum systems.