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Updated: Jun 19, 2026

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

B J Garrec, G J Razé, P Y Thro

    Optics Letters
    |November 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    This study demonstrates a high-power diode-laser side-pumped Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser. The system achieved 106 W of average power at 532 nm with notable optical-to-electrical efficiency.

    Area of Science:

    • Laser physics
    • Solid-state lasers
    • Nonlinear optics

    Background:

    • Diode-laser side-pumping is an efficient method for exciting solid-state lasers.
    • Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) lasers are widely used for various applications.
    • High-power green laser generation is crucial for industrial and scientific fields.

    Purpose of the Study:

    • To investigate the laser performance and power scaling capabilities of a diode-laser side-pumped Nd:YAG laser.
    • To achieve high average power output at 532 nm through intracavity frequency doubling.
    • To evaluate the optical-to-electrical efficiency of the developed laser system.

    Main Methods:

    • Utilized a diode-laser side-pumped Nd:YAG laser configuration.
    • Employed 35 continuous wave (cw) 20-W bars for pumping.

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  • Implemented intracavity frequency doubling using Potassium Titanyl Phosphate (KTiOPO4).
  • Operated the laser in a Q-switched mode at a repetition rate of 27 kHz.

    • Main Results:

    • Achieved an average output power of 106 W at 532 nm.
    • Demonstrated successful power scaling of the diode-laser side-pumped Nd:YAG laser.
    • Obtained an optical-to-electrical efficiency of 5.4% for the system.

    Conclusions:

    • The diode-laser side-pumped Nd:YAG laser system exhibits excellent performance for high-average-power generation.
    • Intracavity frequency doubling is an effective technique for producing high-power green light from Nd:YAG lasers.
    • The demonstrated efficiency indicates the potential for practical applications requiring high-power 532 nm lasers.