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Related Experiment Video

Updated: Jun 22, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Tunable and efficient diode-pumped Yb3+:GYSO laser.

Juan Du, Xiaoyan Liang, Yi Xu

    Optics Express
    |June 12, 2009
    PubMed
    Summary

    Researchers demonstrate diode-pumped tunable laser action in a novel Yb:Gd(2(1-x))Y(2x)SiO(5) (Yb:GYSO) crystal. This new alloyed crystal offers excellent laser performance and tunable output from 1030nm to 1089nm.

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    Area of Science:

    • Materials Science
    • Laser Physics
    • Solid-State Physics

    Background:

    • Rare-earth doped crystals are crucial for developing efficient solid-state lasers.
    • Ytterbium-doped materials offer advantages like low quantum defect and broad emission spectra.
    • Alloying existing laser crystals can combine desirable properties for improved performance.

    Purpose of the Study:

    • To demonstrate, for the first time, effective diode-pumped continuous-wave (cw) tunable laser action in a new alloyed crystal: Yb:Gd(2(1-x))Y(2x)SiO(5) (Yb:GYSO, x = 0.5).
    • To evaluate the laser performance and tunable range of the novel Yb:GYSO crystal.
    • To leverage the beneficial properties of both Gadolinium Orthosilicate (GSO) and Yttrium Orthosilicate (YSO) in a single alloyed host.

    Main Methods:

    • Synthesis and characterization of the Yb:GYSO alloyed crystal.

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  • Diode-pumped laser oscillation experiments in a continuous-wave (cw) configuration.
  • Measurement of output power, slope efficiency, and laser wavelength tuning range.

    • Main Results:

    • Achieved 2.44 W output power at 1081.5 nm using a 5-at.% Yb:GYSO sample.
    • Obtained a high slope efficiency of 57%.
    • Demonstrated a wide laser wavelength tunability from 1030 nm to 1089 nm.

    Conclusions:

    • The novel Yb:GYSO alloyed crystal exhibits excellent laser properties, combining the benefits of GSO and YSO.
    • Effective diode-pumped cw tunable laser operation was successfully demonstrated, confirming its potential for laser applications.
    • The Yb:GYSO crystal is a promising new gain medium for tunable laser systems.