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Microcavity-enhanced Kerr nonlinearity in a vertical-external-cavity surface-emitting laser: erratum.

Christian Kriso, Sascha Kress, Tasnim Munshi

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    |October 7, 2021
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    Summary
    This summary is machine-generated.

    A calculation error in a previous study is corrected, updating the Kerr lens focal length. This revised calculation for VECSEL cavities results in a larger focal length and less cavity beam profile perturbation.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Semiconductor Lasers

    Background:

    • Self-mode-locking Vertical-External-Cavity Surface-Emitting Lasers (VECSELs) are crucial for high-power laser generation.
    • Accurate modeling of the Kerr lens effect is essential for optimizing VECSEL performance.
    • Previous calculations of the Kerr lens focal length in VECSELs contained a mistake.

    Purpose of the Study:

    • To correct a calculation error in the determination of the Kerr lens focal length for VECSELs.
    • To update the relevant figure and parameters from a prior publication.
    • To provide a more accurate understanding of the Kerr lens effect in VECSEL cavities.

    Main Methods:

    • Recalculating the Kerr lens focal length using measured nonlinear refractive index (n2) values.
    • Utilizing parameters from a prototypical self-mode-locking VECSEL cavity.
    • Updating Fig. 1 from the original publication (Opt. Express 27, 11914 (2019)) with corrected data.

    Main Results:

    • The corrected calculation yields a significantly larger focal length for the Kerr lens.
    • The updated focal length indicates a smaller perturbation of the cavity beam profile.
    • The revised parameters provide a more accurate representation of the VECSEL's internal optical dynamics.

    Conclusions:

    • The correction of the Kerr lens focal length calculation is vital for accurate VECSEL modeling.
    • A larger Kerr lens focal length leads to improved stability and reduced beam distortion.
    • This work refines the understanding of nonlinear optical effects in VECSELs, aiding future device design.