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Oscillations In An LC Circuit01:30

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An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
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Stable integrated hyper-parametric oscillator based on coupled optical microcavities.

Andrea Armaroli, Patrice Feron, Yannick Dumeige

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    This summary is machine-generated.

    We developed a flexible optical microcavity system for stable microwave signal generation. Oscillation frequency is tunable via coupling rates, with potential for integrated photonic applications.

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    Area of Science:

    • Photonics and Optical Engineering
    • Microwave Engineering
    • Integrated Optics

    Background:

    • Optical microcavities are crucial for various photonic applications.
    • Controlling microwave signal generation using optical systems presents challenges.
    • Integrated photonic circuits offer miniaturization and enhanced functionality.

    Purpose of the Study:

    • To propose a flexible scheme for stable microwave signal generation using coupled optical microcavities.
    • To investigate the influence of dynamical regimes on oscillation characteristics.
    • To explore the potential for implementing compact hyper-parametric sources on integrated optical circuits.

    Main Methods:

    • Utilizing a system of three coupled optical microcavities.
    • Analyzing the dependence of oscillation frequency on cavity coupling rates.
    • Investigating soft and hard excitation dynamical regimes.

    Main Results:

    • Achieved stable oscillations in the microwave range.
    • Demonstrated that oscillation frequency is solely dependent on cavity coupling rates.
    • Observed that dynamical regimes affect oscillation intensity but not the oscillation periods.

    Conclusions:

    • The proposed coupled microcavity scheme provides a flexible method for tunable microwave signal generation.
    • The system's robustness to dynamical regimes ensures stable oscillation periods.
    • This configuration is suitable for developing compact hyper-parametric sources for communications, sensing, and metrology.