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Related Experiment Video

Updated: Apr 3, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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High brightness continuous wave ceramic Yb:LuAG thin-disk laser.

Yuan Han Peng, James Cheng, Yan Ying Cheah

    Optics Express
    |September 15, 2015
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers developed a high-power ceramic ytterbium-doped lutetium aluminum garnet (Yb:LuAG) thin-disk laser. This novel ceramic laser achieves over 1 kW output power, marking a significant advancement in high-brightness laser technology.

    Area of Science:

    • Materials Science
    • Laser Physics
    • Solid-State Physics

    Background:

    • Ceramic gain media offer advantages over single crystals for high-power laser applications.
    • Ytterbium-doped lutetium aluminum garnet (Yb:LuAG) is a promising material for efficient laser operation.
    • Thin-disk laser architecture enables effective heat management for high-power output.

    Purpose of the Study:

    • To demonstrate continuous wave (CW) operation of a ceramic Yb:LuAG thin-disk laser.
    • To achieve high output power and efficiency using this ceramic laser system.
    • To investigate the laser performance in both multi-mode and near-fundamental mode operation.

    Main Methods:

    • Fabrication of Yb:LuAG ceramic using solid-state reactive sintering.
    • Construction of a thin-disk laser resonator.

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  • Characterization of laser output power, efficiency, and beam quality in CW operation.

    • Main Results:

    • Achieved 1.74 kW output power in multi-mode operation with 65.0% optical-to-optical efficiency.
    • Obtained 1.29 kW output power in near-fundamental mode with M2 = 1.44 and 48.2% optical-to-optical efficiency.
    • Demonstrated the first >1 kW output from a ceramic Yb:LuAG medium and the brightest CW Yb-doped ceramic laser to date.

    Conclusions:

    • The ceramic Yb:LuAG thin-disk laser is a viable technology for high-power, high-brightness laser generation.
    • The demonstrated performance highlights the potential of ceramic materials for advanced laser systems.
    • This work sets a new benchmark for CW Yb-doped ceramic lasers.