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Updated: Jun 16, 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

Compact diode stack end pumped Nd:YAG amplifier using core doped ceramics.

Thomas Denis1, Sven Hahn, Sandra Mebben

  • 1Laser Zentrum Hannover e. V., Hollerithallee 8, D-30419 Hannover, Germany.

Applied Optics
|February 16, 2010
PubMed
Summary
This summary is machine-generated.

We developed a compact, diode-pumped Nd:YAG laser amplifier achieving 14 mJ pulse energy. A samarium-doped YAG cladding reduced parasitic effects, enhancing beam quality for efficient laser applications.

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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Area of Science:

  • Laser physics
  • Materials science

Background:

  • Development of compact and efficient laser amplifiers is crucial for various scientific and industrial applications.
  • Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) lasers are widely used due to their favorable properties.

Purpose of the Study:

  • To report on a compact diode-pumped Nd:YAG amplifier with high pulse energy.
  • To investigate the effect of a samarium-doped YAG cladding on parasitic effects and beam quality.
  • To compare the performance of this amplifier with a mode-selectively pumped amplifier.

Main Methods:

  • Amplification of a passively Q-switched oscillator using a diode-pumped Nd:YAG amplifier.
  • Utilizing an 8-bar, 800W diode stack and non-imaging optics for pump light homogenization.
  • Employing a laser rod with a central neodymium-doped core and a samarium-doped YAG cladding.

Main Results:

  • Achieved a maximum pulse energy of 14 mJ.
  • Obtained a good beam quality with M(2) approximately 1.7.
  • Demonstrated reduced parasitic effects in the laser rod with samarium-doped YAG cladding compared to undoped YAG.

Conclusions:

  • The compact Nd:YAG amplifier design is effective for achieving high pulse energy and good beam quality.
  • Samarium-doped YAG cladding offers an advantage in suppressing parasitic effects.
  • Further comparison with mode-selectively pumped systems provides insights into optimal pumping strategies.