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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Radiation-balanced Yb:YAG disk laser.

Zhou Yang, Junwei Meng, Alexander R Albrecht

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    Summary
    This summary is machine-generated.

    This study demonstrates a radiation-balanced Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) disk laser. The findings show these multi-kilowatt lasers can operate with minimal instabilities, paving the way for advanced laser applications.

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    Area of Science:

    • Laser Physics
    • Materials Science

    Background:

    • Disk lasers offer high power scalability but are susceptible to thermal lensing.
    • Intracavity pumping is a method to enhance laser efficiency and power.

    Purpose of the Study:

    • To demonstrate a radiation-balanced Yb:YAG disk laser.
    • To analyze the feasibility of multi-kilowatt "athermal" disk lasers with minimal modal instabilities.

    Main Methods:

    • Utilized an intracavity pumping geometry for the Yb:YAG disk laser.
    • Conducted detailed data analysis to assess laser performance and stability.

    Main Results:

    • Successfully demonstrated a radiation-balanced Yb:YAG disk laser.
    • Identified minimal modal instabilities in multi-kilowatt "athermal" disk lasers.

    Conclusions:

    • The "athermal" Yb:YAG disk laser design is feasible for high-power applications.
    • This approach mitigates modal instabilities arising from thermal lensing in disk lasers.