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Tm:YVO(4) microchip laser.

J J Zayhowski, J Harrison, C Dill Iii

    Applied Optics
    |October 22, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A thulium-doped yttrium vanadate (Tm:YVO(4)) microchip laser achieved 150 mW of 1.92-µm output. Temperature reduction had minimal impact on laser performance, indicating robust operation.

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    Area of Science:

    • Solid-state laser physics
    • Materials science and engineering

    Background:

    • Microchip lasers offer compact and efficient laser sources.
    • Thulium-doped materials are crucial for generating mid-infrared laser output.

    Purpose of the Study:

    • To characterize the performance of a Tm:YVO(4) microchip laser.
    • To investigate the effect of temperature on laser output and efficiency.

    Main Methods:

    • Pumping a Tm:YVO(4) microchip laser with a 1-W laser diode at room temperature.
    • Utilizing a Ti:Al(2)O(3) laser for temperature-dependent pumping from 20 °C to -30 °C.

    Main Results:

    • Achieved 150 mW output power at 1.92-µm with a near-diffraction-limited beam.
    • Observed no significant change in threshold power with temperature reduction.

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  • Noted a modest 20% increase in slope efficiency upon cooling.

    • Conclusions:

    • The Tm:YVO(4) microchip laser demonstrates stable and efficient operation at room temperature.
    • Laser performance is largely insensitive to temperature variations within the tested range, simplifying practical applications.