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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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High-power diode-array-pumped frequency-doubled cw Nd:YAG laser.

R Burnham, A D Hays

    Optics Letters
    |September 15, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    We demonstrated a diode-pumped Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser producing 3.3 W of continuous-wave output at 1.06 micrometers. This laser system achieved 3.5% electrical efficiency.

    Area of Science:

    • Laser Physics
    • Solid-State Lasers
    • Nonlinear Optics

    Background:

    • Diode-pumped solid-state lasers offer high efficiency and compact designs.
    • Nd:YAG lasers are widely used for various applications due to their robust performance.
    • Efficient pumping is crucial for optimizing laser output power and efficiency.

    Purpose of the Study:

    • To demonstrate a diode-array-pumped Nd:YAG laser with high continuous-wave output power.
    • To investigate the efficiency of side-pumping using linear diode arrays.
    • To achieve frequency doubling for visible laser output.

    Main Methods:

    • Utilized linear diode arrays for side-pumping a Nd:YAG laser rod.
    • Employed cylindrical optics for efficient spatial overlap of pump and cavity modes.

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  • Incorporated KTP (potassium titanyl phosphate) for intracavity second-harmonic generation.

    • Main Results:

    • Achieved a continuous-wave output power of 3.3 W at 1.06 micrometers.
    • Obtained a repetitive Q-switched output of 0.76 W at 532 nm via intracavity doubling.
    • Demonstrated an electrical efficiency of 3.5% for the 1.06-micrometer output.

    Conclusions:

    • Diode-array side-pumping is an effective method for high-power Nd:YAG laser operation.
    • Intracavity frequency doubling provides a viable route to visible laser wavelengths.
    • The demonstrated laser system shows potential for applications requiring efficient green light generation.