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Yb:YAG Crystals

Three square shaped transparent Yb:YAG laser crystals

Yb:YAG Crystals

Doping concentration

0.2–25 atm.%

Aperture dimensions

Ø1 – 15

Crystal orientation

c-cut [111]

Surface quality, S-D


Surface flatness, P-V

<λ/10 @ 632.8 nm

Extinction ratio

>28 dB


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Yb:YAG – Laser crystal

Ytterbium-doped yttrium aluminum garnet (Yb:YAG) crystal is one of the most promising laser-active materials, suitable for high-power diode-pumped lasers and other optical applications.

Yb:YAG crystals have an 18 nm wide absorption band at 940 nm, very low fractional heating (<11%), very high slope efficiency (>56%), high mechanical strength, and high thermal conductivity. They are more suitable for diode-pumping than traditional Nd-doped systems: compared to Nd:YAG crystal, Yb:YAG has a longer upper-state lifetime and three to four times lower thermal loading per unit of pump power.

Altechna can offer Yb:YAG crystals with various doping concentrations and dimensions, as well as right angles and Brewster angle cuts, plus high-quality polishing. For right-angle cut crystals, we make HR+HT and AR coatings. Coated thin-disk crystals are also available.


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