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Related Experiment Video

Updated: May 7, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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Tunable quantum dot parametric source.

A Andronico, I Favero, S Ducci

    Optics Express
    |October 10, 2013
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    Summary
    This summary is machine-generated.

    We modeled an electrically pumped nonlinear source for spontaneous parametric down-conversion using InAs quantum dots in an AlGaAs waveguide, achieving efficient light generation at 1900 nm.

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    Area of Science:

    • Nonlinear optics
    • Semiconductor device physics
    • Quantum optics

    Background:

    • Spontaneous parametric down-conversion (SPDC) is a key quantum light source.
    • AlGaAs waveguides offer nonlinear optical properties.
    • Quantum dots provide efficient light emission.

    Purpose of the Study:

    • To model an electrically pumped nonlinear source for SPDC.
    • To investigate the use of InAs quantum dots in an AlGaAs Bragg waveguide.
    • To achieve phase matching for signal and idler modes at 1900 nm.

    Main Methods:

    • Numerical modeling of an AlGaAs single-sided Bragg waveguide.
    • Incorporation of InAs quantum dots for laser emission at 950 nm.
    • Phase matching analysis for cross-polarized total-internal-reflection modes.

    Main Results:

    • The model demonstrates efficient SPDC generation.
    • Quantum dots are shown to be crucial for phase-matching.
    • The source exhibits tuning capabilities.

    Conclusions:

    • Electrically pumped nonlinear sources for SPDC are feasible.
    • AlGaAs waveguides with quantum dots are promising for integrated quantum optics.
    • This device offers tunable, efficient entangled photon pair generation.