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Related Experiment Video

Updated: Jun 22, 2026

Using a 1064-nm Picosecond Neodymium-Doped Yttrium Aluminum Garnet Laser for Periorbital Hyperpigmentation
04:43

Using a 1064-nm Picosecond Neodymium-Doped Yttrium Aluminum Garnet Laser for Periorbital Hyperpigmentation

Published on: May 23, 2025

407 W End-pumped Multi-segmented Nd:YAG Laser.

Dietmar Kracht, Ralf Wilhelm, Maik Frede

    Optics Express
    |June 9, 2009
    PubMed
    Summary
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    Researchers developed a composite Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) crystal rod for high-power laser applications. This innovative design achieved a maximum output power of 407 W with 54% efficiency using diode end-pumping.

    Area of Science:

    • Laser Physics and Photonics
    • Materials Science
    • Solid-State Lasers

    Background:

    • High-power solid-state lasers are crucial for various scientific and industrial applications.
    • Diode end-pumping offers an efficient method for exciting laser gain media.
    • Composite crystal designs can optimize laser performance by tailoring properties along the gain medium.

    Purpose of the Study:

    • To present a novel composite crystalline Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) rod.
    • To investigate its performance for high-power diode end-pumping applications.
    • To achieve high laser output power and efficiency.

    Main Methods:

    • Fabrication of a composite Nd:YAG rod comprising 5 segments with varying dopant concentrations.
    • Longitudinal end-pumping of the composite rod using a high-power laser diode stack.

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    Last Updated: Jun 22, 2026

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    Published on: May 23, 2025

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  • Characterization of laser output power and optical-to-optical efficiency.

    • Main Results:

    • A maximum laser output power of 407 W was successfully achieved.
    • An impressive optical-to-optical efficiency of 54% was recorded.
    • The composite structure effectively managed thermal gradients and optimized energy extraction.

    Conclusions:

    • The presented composite Nd:YAG rod is a viable solution for high-power laser systems.
    • Diode end-pumping with this composite design enables efficient, high-power laser generation.
    • This technology holds promise for advancements in laser-driven applications.