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Low-threshold, cw, all-solid-state Ti:Al(2)O(3) laser.

J Harrison, A Finch, D M Rines

    Optics Letters
    |September 24, 2009
    PubMed
    Summary
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    A new continuous-wave titanium-aluminum-oxide (Ti:Al2O3) ring laser offers tunable, single-frequency output. This laser, pumped by a diode-laser-pumped, frequency-doubled, neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, is ideal for injection seeding applications.

    Area of Science:

    • Laser Physics
    • Quantum Optics
    • Materials Science

    Background:

    • Titanium-aluminum-oxide (Ti:Al2O3) lasers are known for their broad tunability.
    • Achieving single-frequency, diffraction-limited output is crucial for many advanced optical applications.
    • Efficient pumping methods are essential for reducing laser threshold power.

    Purpose of the Study:

    • To demonstrate a continuous-wave (cw) Ti:Al2O3 ring laser.
    • To achieve a low threshold power for the Ti:Al2O3 ring laser.
    • To provide a tunable source of single-frequency, diffraction-limited radiation suitable for injection seeding.

    Main Methods:

    • Utilized a continuous-wave (cw) Ti:Al2O3 ring laser design.
    • Employed a diode-laser-pumped, frequency-doubled neodymium-doped yttrium aluminum garnet (Nd:YAG) laser as the sole pump source.

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  • Characterized the laser's threshold power, tunability, and output beam quality.

    • Main Results:

    • Demonstrated a cw Ti:Al2O3 ring laser with a threshold power of 119 mW.
    • The laser produced tunable, single-frequency, diffraction-limited radiation.
    • Confirmed suitability of the output for injection seeding.

    Conclusions:

    • A low-threshold cw Ti:Al2O3 ring laser has been successfully demonstrated.
    • The developed laser system provides a versatile source for applications requiring high-quality, tunable laser light.
    • The use of a diode-laser-pumped, frequency-doubled Nd:YAG laser offers an efficient pumping solution.