Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates Description
Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates (Nd:Gd3Ga5O12) has excellent thermal conductivity and mechanical properties. Compared with other Nd3+ doped crystals, such as Nd: YVO4, Nd: GdVO4, Nd: YGdVO4 and Nd: YAG, Nd: GGG crystals do not have an optically inhomogeneous area called “nucleus”. Consequently, it can support a higher Nd3+ doping atom number fraction. Therefore, it is considered to be the best working crystal for solid-state heat capacity lasers.
Nd: GGG can be used as an LD pump crystal. Nd: GGG has a large stimulated emission cross-section and a high laser efficiency as well as a low threshold. In addition, this material has the advantages of high specific heat and high thermal conductivity, and similarly the long emission time. Therefore, it is the first choice for high-power laser working materials for LD pumps.
Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates Specifications
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Standard specifications
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Doping concentration
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0.5~3 at.%
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Directional
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[111] within± 5º
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Wavefront distortion
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≤ 0.5λ/inch@632.8 nm (for the rod)
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Extinction ratio
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≥ 20dB @632.8 nm (for the rod)
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Size
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Diameter：2~70mm, Length：3~100mm
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Dimensional tolerances
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Diameter: +0.00″/-0.002″, Length: ± 0.02″
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Barrel finish
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Ground Finish with 400# Grit or polished
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Parallelity
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≤ 10 arcsec (for the rod)
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Flatness
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≤λ/4@632.8nm (for the rod)
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AR coating reflectivity
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≤0.25% @1060nm
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Physical and chemical properties
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Crystal structure
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Cubic
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Lattice constant
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12.383 Å
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Mohs hardness
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8
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dn/dT
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17×10-6/K
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Poisson ratio
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0.28
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Melting point
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1725°C
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Density
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7.1 g/cm3
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Thermal expansion
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8×10-6C-1
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Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates Application
- Solid-state heat capacity laser
- LD pump crystal
Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates Packaging
Our Neodymium Doped Gadolinium Gallium Garnet Crystals and Substrates is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
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