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Updated: Aug 25, 2025
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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Single-photon nonlinearities and blockade from a strongly driven photonic molecule
Optics Letters
|October 14, 2022
Summary
Researchers demonstrate single-photon nonlinearities in photonic devices using intrinsic material properties. This breakthrough enables practical semiconductor quantum photonic technologies by suppressing two-photon probability in a coupled ring resonator system.
Area of Science:
- Quantum optics
- Integrated photonics
- Semiconductor materials
Background:
- Practical quantum photonic technologies require single-photon nonlinearities.
- Exploiting intrinsic high-order material susceptibilities is key.
- Semiconductor platforms offer a promising route.
Purpose of the Study:
- To achieve single-photon nonlinearities in a practical semiconductor-based system.
- To demonstrate the suppression of two-photon probability.
- To validate the potential for quantum photonic applications.
Main Methods:
- Utilizing a triply resonant integrated photonic device with two coupled ring resonators.
- Employing a material with intrinsic third-order nonlinearity.
- Applying strong driving to one resonance and a weak probe to another.
Main Results:
- Demonstrated strong suppression of two-photon probability at the output.
- Observed an antibunched second-order correlation function at zero-time delay.
- Confirmed single-photon nonlinearity under continuous wave driving.
Conclusions:
- Achieved single-photon nonlinearities in a coupled ring resonator system.
- Validated the use of intrinsic material nonlinearity for quantum photonics.
- Paved the way for practical semiconductor-based quantum photonic devices.
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