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Related Experiment Video

Updated: Jun 19, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Resonators for self-mode-locking Ti:sapphire lasers without apertures.

Y C Chen, X Y Zheng, T S Lai

    Optics Letters
    |November 3, 2009
    PubMed
    Summary

    Stable self-mode locking is achieved without hard apertures by minimizing resonator cavity-dispersion noncoaxiality in Brewster-cut gain media. This method optimizes cavity-loss modulation from Kerr effects for improved laser performance.

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    Area of Science:

    • Laser Physics
    • Nonlinear Optics

    Background:

    • Achieving stable self-mode locking in lasers is crucial for various applications.
    • Traditional methods often rely on hard apertures, which can limit performance and introduce losses.
    • Minimizing cavity-dispersion noncoaxiality is a key challenge in laser resonator design.

    Purpose of the Study:

    • To demonstrate a method for achieving stable self-mode locking without hard apertures.
    • To optimize cavity-loss modulation introduced by Kerr effects in laser resonators.
    • To investigate the role of cavity-dispersion noncoaxiality in Brewster-cut gain media.

    Main Methods:

    • Designing laser resonators to minimize cavity-dispersion noncoaxiality.
    • Utilizing Brewster-cut gain media.
    • Optimizing cavity-loss modulation through Kerr effects.

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    Main Results:

    • Stable self-mode locking was achieved without the need for hard apertures.
    • Minimizing cavity-dispersion noncoaxiality proved advantageous for stable mode-locking.
    • The Kerr effects were effectively utilized to optimize cavity-loss modulation.

    Conclusions:

    • Resonator design to minimize cavity-dispersion noncoaxiality offers a viable path to stable self-mode locking without hard apertures.
    • This approach enhances laser performance by optimizing Kerr-induced cavity-loss modulation.
    • The findings are significant for developing advanced laser systems.