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    High-energy wide platicons are stable in hot cavities with positive thermal effects. Narrow platicons become stable under negative thermal coefficients, revealing complex nonlinear dynamics.

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    Area of Science:

    • Nonlinear optics
    • Optical cavity dynamics

    Background:

    • Platicons are optical structures studied in nonlinear systems.
    • Hot cavities introduce thermal nonlinearities that affect optical phenomena.
    • Kerr nonlinearity is a fundamental optical effect.

    Purpose of the Study:

    • To numerically investigate the stability of platicons in hot optical cavities.
    • To analyze the interplay between Kerr and thermal nonlinearities.
    • To determine the influence of pump amplitude, thermal nonlinearity coefficient, and relaxation time on platicon stability.

    Main Methods:

    • Numerical simulations were employed for stability analysis.
    • The study explored various ranges of pump amplitude.
    • Key parameters included thermal nonlinearity coefficient and thermal relaxation time.

    Main Results:

    • Positive thermal effects stabilize high-energy, wide platicons.
    • Negative thermal coefficients lead to the stability of narrow platicons.
    • The study identified distinct stability regimes based on thermal effects.

    Conclusions:

    • Platicon stability in hot cavities is highly dependent on the sign and magnitude of thermal nonlinearities.
    • Understanding these dynamics is crucial for controlling optical pulse propagation.
    • The findings offer insights into designing optical systems with specific nonlinear responses.