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Updated: Feb 23, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Sol-Gel Derived Active Material for Yb Thin-Disk Lasers.

Rui M Almeida1, Tiago Ribeiro2, Luís F Santos3

  • 1Centro de Química Estrutural/DEQ, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. rui.almeida@tecnico.ulisboa.pt.

Materials (Basel, Switzerland)
|September 5, 2017
PubMed
Summary
This summary is machine-generated.

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Researchers developed a new ytterbium-doped glass material for thin-disk lasers. The optimized aluminosilicate composition shows promising photoluminescence properties for laser applications.

Area of Science:

  • Materials Science
  • Optics and Photonics
  • Glass Science

Background:

  • Development of efficient laser materials is crucial for advanced optical applications.
  • Ytterbium (Yb) doping in glass matrices offers potential for high-power laser systems.
  • Thin-disk laser architectures require robust and optically active materials.

Purpose of the Study:

  • To synthesize and characterize novel ytterbium-doped aluminosilicate and phosphosilicate glass materials.
  • To investigate the structural, morphological, and photoluminescence properties of these materials.
  • To identify the optimal composition for thin-disk laser applications.

Main Methods:

  • Sol-gel processing for preparing bulk and thick film samples.
  • X-ray diffraction and Raman spectroscopy for structural analysis.
Keywords:
Yb-doped glassesaluminosilicate glassesphotoluminescencesol-gelthin-disk laser

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  • Scanning electron microscopy for film morphology assessment.
  • Photoluminescence spectroscopy to study emission spectra and lifetimes.
  • Use of Erbium (Er3+) as an internal reference for intensity comparison.

    • Main Results:

    • Successfully prepared Yb-doped aluminosilicate and phosphosilicate glasses with up to 30 mol% Yb2O3.
    • Characterized structural and morphological properties using XRD, Raman, and SEM.
    • Observed Yb3+ photoluminescence lifetimes ranging from 1.0 to 0.5 ms with increasing Yb concentration.
    • Identified a specific aluminosilicate composition (71 SiO2-14 AlO1.5-15 YbO1.5 mol%) as the best performing active material.
    • Fabricated a ~36 μm thick active disk incorporating the optimized material, Bragg mirror, and anti-reflective coating.

    Conclusions:

    • The developed Yb-doped aluminosilicate glass is a promising active material for thin-disk lasers.
    • Sol-gel processing is an effective method for fabricating these advanced laser materials.
    • The optimized material composition and disk structure pave the way for efficient laser device fabrication.