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Related Experiment Video

Updated: Jun 20, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Room-temperature diode-pumped Yb:YAG laser.

P Lacovara, H K Choi, C A Wang

    Optics Letters
    |September 25, 2009
    PubMed
    Summary

    We developed an efficient room-temperature ytterbium-doped YAG laser. This new laser, pumped by an InGaAs diode laser, shows advantages over older Nd:YAG lasers.

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    Area of Science:

    • Lasers and Photonics
    • Materials Science

    Background:

    • Neodymium-doped YAG (Nd:YAG) lasers are widely used but have limitations.
    • Improving laser efficiency and thermal management is crucial for advanced applications.

    Purpose of the Study:

    • To develop an efficient room-temperature ytterbium-doped YAG laser.
    • To compare its performance and advantages against traditional Nd:YAG lasers.

    Main Methods:

    • Utilized a ytterbium-doped YAG crystal as the gain medium.
    • Employed an InGaAs strained-layer diode laser operating at 968 nm for pumping.
    • Characterized laser performance, including threshold and output power.

    Main Results:

    • Achieved efficient room-temperature operation at 1.03 microm.
    • Threshold pump power was measured at 234 mW.
    • Obtained 23 mW of output power with 345 mW of absorbed pump power.

    Conclusions:

    • The developed ytterbium-doped YAG laser is efficient at room temperature.
    • It offers advantages over AlGaAs-pumped Nd:YAG lasers, including broader absorption and lower thermal load.
    • This technology presents a promising alternative for various laser applications.

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