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    Area of Science:

    • Nonlinear Optics
    • Quantum Optics
    • Fiber Optics

    Background:

    • Supercontinuum pulse trains are crucial for various optical applications.
    • Understanding their temporal coherence is essential for advanced applications.
    • Nonstationary light coherence theory provides a framework for analysis.

    Purpose of the Study:

    • To analyze the temporal coherence properties of supercontinuum pulse trains.
    • To investigate the applicability of second-order coherence theory to nonstationary light.
    • To explore experimental methods for characterizing coherence in these systems.

    Main Methods:

    • Simulating time-resolved Michelson's interference patterns.
    • Applying second-order coherence theory for nonstationary light.
    • Developing an analytical model for supercontinuum pulse trains.
    • Numerically simulating pulse train realizations.

    Main Results:

    • Time-resolved interference patterns can determine the full two-time mutual coherence function.
    • Standard interferograms provide estimates for the coherence time of quasi-stationary contributions.
    • The proposed analytical model effectively represents supercontinuum pulse trains.

    Conclusions:

    • The study demonstrates a method for experimentally characterizing temporal coherence in supercontinuum pulse trains.
    • Second-order coherence theory is a viable framework for analyzing nonstationary light.
    • Simulations provide insights into the coherence properties and measurement techniques.