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Updated: Mar 19, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Efficient quantum frequency conversion for networking on the telecom E-band.

S M Patomäki, M Sirotin, D R Englund

|March 18, 2026

Summary

This summary is machine-generated.

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We developed a simple quantum frequency conversion device for silicon vacancy (SiV) centers, achieving 44.5% external efficiency. This breakthrough enhances quantum networking capabilities for SiV qubits.

Area of Science:

Quantum Information Science
Optics and Photonics
Materials Science

Background:

High-efficiency quantum frequency conversion (QFC) is crucial for long-distance quantum networking using group-IV color centers like silicon vacancies (SiV).
QFC performance is sensitive to wavelength choices and device configurations (bulk vs. waveguide), influencing noise and efficiency.

Purpose of the Study:

To design a simple quantum frequency conversion (QFC) device for silicon vacancy (SiV) color centers.
To achieve state-of-the-art performance in QFC for SiV centers suitable for quantum networking.

Main Methods:

Utilized a C-band pump wavelength (1561 nm) for E-band network wavelength (1398 nm) in a one-stage, single-pass conversion scheme.
Employed high-quality erbium-doped fiber amplifiers to maximize the nonlinear conversion process.

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Quasi-light Storage for Optical Data Packets

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Related Experiment Videos

Last Updated: Mar 19, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Investigated noise characteristics, specifically anti-Stokes Raman scattering, and measured photon conversion efficiency.

Main Results:

Achieved a record external photon conversion efficiency of 44.5 ± 1.8% (internal: 8.5 ± 1.8%) at 1.51 W external pump power.
Demonstrated a 9% (25%) increase in external (internal) efficiency compared to previous SiV QFC methods.
Measured a pump-generated noise spectral density of 4913 counts/s/nm, consistent with one-stage anti-Stokes conversion.

Conclusions:

The proposed QFC device design offers a simple yet high-performance solution for SiV centers.
The achieved efficiency and noise levels are promising for practical quantum networking applications.
Further improvements could be realized by addressing fiber coupling efficiencies and exploring multi-stage conversion for noise reduction.