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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Efficient tunable diode-pumped Yb:LYSO laser.

Wenxue Li, Shixiang Xu, Haifeng Pan

    Optics Express
    |June 12, 2009
    PubMed
    Summary

    A new ytterbium-doped LuYSiO(5) (Yb:LYSO) crystal shows efficient laser action under diode-pumping, achieving high slope efficiency and output power. This Yb:LYSO laser offers broad tunability and stability, making it promising for various applications.

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    Area of Science:

    • Materials Science
    • Laser Physics
    • Solid-State Lasers

    Background:

    • Ytterbium-doped oxyorthosilicates are promising laser materials.
    • Alloyed crystals offer potential for improved spectroscopic and laser properties.

    Purpose of the Study:

    • To investigate the laser performance of a novel ytterbium-doped LuYSiO(5) (Yb:LYSO) crystal.
    • To compare Yb:LYSO with established ytterbium-doped lutetium and yttrium oxyorthosilicates.
    • To assess the tunability and stability of the Yb:LYSO laser.

    Main Methods:

    • High-power diode-pumping of Yb:LYSO crystal.
    • Spectroscopic characterization.
    • Continuous-wave (CW) laser operation measurements.
    • Intracavity tuning using a dispersive prism.

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    Main Results:

    • Efficient laser action demonstrated in Yb:LYSO.
    • Maximal slope efficiency of 96% achieved.
    • Maximum output power of 7.8 W obtained.
    • Broad spectral tunability from 1014 nm to 1091 nm demonstrated.
    • Low sensitivity to pump wavelength drift observed.

    Conclusions:

    • Yb:LYSO is a highly efficient and tunable laser medium.
    • Its performance is competitive with or superior to existing Yb-doped oxyorthosilicates.
    • Yb:LYSO is a viable candidate for high-power, tunable laser applications.