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Updated: May 18, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

High-energy, ceramic-disk Yb:LuAG laser amplifier.

M Siebold1, M Loeser, F Roeser

  • 1Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr 400, 01328 Dresden, Germany. m.siebold@hzdr.de

Optics Express
|October 6, 2012
PubMed
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Researchers achieved high-energy short-pulse amplification in ceramic Ytterbium-doped Lutetium Aluminum Garnet (Yb:LuAG) lasers. This ceramic material shows promise for efficient, high-power laser applications.

Area of Science:

  • Laser physics
  • Materials science
  • Solid-state lasers

Background:

  • Ytterbium-doped materials are crucial for high-power laser systems.
  • Ceramic laser gain media offer advantages over single crystals.
  • Previous research has explored Yb:LuAG, but short-pulse amplification data was limited.

Purpose of the Study:

  • To investigate the short-pulse amplification capabilities of ceramic Yb:LuAG.
  • To determine the maximum achievable energies and efficiencies.
  • To compare the performance of ceramic Yb:LuAG with Yb:YAG.

Main Methods:

  • Utilized a diode-pumped Yb:LuAG amplifier system.
  • Performed short-pulse amplification experiments.
  • Measured gain bandwidth via small-signal single-pass gain.

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Published on: July 12, 2017

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  • Conducted comparative tests with Yb:YAG.

    • Main Results:

    • Achieved several hundred millijoule energies in short-pulse amplification.
    • Demonstrated a maximum output energy of 580 mJ from the Yb:LuAG amplifier.
    • Obtained a peak optical-to-optical efficiency of 28% at 550 mJ.
    • Measured a gain bandwidth of 5.4 nm at room temperature.
    • Achieved 1 mJ in cavity dumped oscillator operation at 100 Hz.

    Conclusions:

    • Ceramic Yb:LuAG is a viable and efficient gain medium for high-energy short-pulse amplification.
    • The performance of ceramic Yb:LuAG is comparable or superior to Yb:YAG in this amplifier system.
    • These findings pave the way for advanced high-power laser development using ceramic Yb:LuAG.