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Updated: Jun 19, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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High-efficiency TEM(00) Nd:YVO(4) laser longitudinally pumped by a high-power array.

G Feugnet, C Bussac, C Larat

    Optics Letters
    |October 28, 2009
    PubMed
    Summary

    A novel optical device enables longitudinal pumping of laser materials using commercial arrays. This compact system achieved a 50% optical-to-optical efficiency with a high-quality laser beam.

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    Area of Science:

    • Optics
    • Laser Physics
    • Materials Science

    Background:

    • Longitudinal pumping is a key technique for efficient laser operation.
    • Existing methods for longitudinal pumping can be complex or inefficient.
    • Commercially available laser diode arrays offer a potential pumping source.

    Purpose of the Study:

    • To present a new, simple, compact, and efficient optical device for longitudinal pumping.
    • To demonstrate the device's capability with commercially available laser diode arrays.
    • To evaluate the performance of a laser system utilizing this new pumping device.

    Main Methods:

    • Development of a novel optical device for longitudinal pumping.
    • Integration of the device with commercial laser diode arrays.

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    Published on: July 12, 2017

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  • Construction and testing of a Neodymium-doped Yttrium Vanadate (Nd:YVO4) laser system.
  • Measurement of optical-optical efficiency and beam quality.

    • Main Results:

    • The developed optical device successfully enabled longitudinal pumping of laser materials.
    • A Nd:YVO4 laser system utilizing the device achieved a high optical-optical efficiency of up to 50%.
    • The output beam quality was diffraction-limited, indicating high performance.

    Conclusions:

    • The new optical device offers a simple, compact, and efficient solution for longitudinal pumping.
    • The demonstrated 50% efficiency highlights the potential of this approach for various laser applications.
    • This technology can be applied to commercially available laser diode arrays for improved laser material excitation.