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Updated: Jun 7, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Yb,Na:PbF(2): a potential new high-power laser material.

Jigang Yin1, Yin Hang, Xiaoyan Liang

  • 1Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China.

Optics Letters
|October 23, 2010
PubMed
Summary

Researchers developed new Ytterbium-doped lead fluoride (Yb:PbF2) laser crystals. Codoping with Sodium (Na+) suppressed unwanted Ytterbium (Yb3+) deoxidization, enabling efficient diode-pumped laser operation.

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Area of Science:

  • Materials Science
  • Solid-State Physics
  • Laser Technology

Background:

  • Lead fluoride (PbF2) is a promising host material for rare-earth-doped lasers.
  • Ytterbium (Yb3+) ions are efficient laser-active ions due to their simple energy level structure.
  • Deoxidization of Yb3+ to Yb2+ can degrade crystal quality and laser performance.

Purpose of the Study:

  • To grow and characterize Yb:PbF2 and Yb,Na:PbF2 laser crystals.
  • To investigate the effect of Na+ codoping on Yb3+ ions in PbF2.
  • To demonstrate diode-pumped laser operation of Yb,Na:PbF2.

Main Methods:

  • Bridgman crystal growth method.
  • Optical spectroscopy (absorption, photoluminescence) at room temperature.
  • Fluorescence lifetime measurements.

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  • Diode-pumped laser operation testing.

    • Main Results:

    • Yb:PbF2 and Yb,Na:PbF2 crystals were successfully grown.
    • Na+ codoping effectively suppressed the deoxidization of Yb3+ to Yb2+.
    • A Yb,Na:PbF2 single crystal achieved 2.37W output power at 1056nm when pumped with 17.9W at 978nm.
    • This marks the first reported diode-pumped laser operation of Yb,Na:PbF2.

    Conclusions:

    • Na+ codoping is a viable strategy to improve the quality and stability of Yb:PbF2 laser crystals.
    • Yb,Na:PbF2 is a promising material for efficient diode-pumped laser applications.
    • Further research can explore optimized doping concentrations and crystal growth conditions.