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Crystro Terbium Gallium Garnet Single Crystal Rods For Faraday Isolator
The growth and characterization of terbium gallium garnet (TGG) for high average Faraday isolators is reported. The main technique of TGG single crystals growing is Czochralski method. Key physical parameters of the grown crystals are measured: thermal conductivity, heat capacity, thermal expansion coefficient, refractive index thermal dependence, optical damage threshold and spectral function of Verdet constant.
Features:
CRYSTRO supply TGG crystal with:
Orientation | [111] within ±15 arc min |
Wave Front Distortion | <1/8 wave |
Extinction Ratio | >35dB |
Diameter Tolerance | +0.00mm/-0.05mm |
Length Tolerance | +0.2mm/-0.2mm |
Chamfer | 0.10mm@45º |
Flatness | <1/10 wave at 633nm |
Parallelism | < 30 arc Seconds |
Perpendicularity | < 5 arc min |
Surface Quality | 10/5 Scratch/Dig |
AR Coating | <0.2% |
Large Dimensions of Crystals | 2.0--76 mm in diameter |
Main Properties:
Chemical Formula | TB3Ga5O12 |
Lattic Parameter | a=12.355Å |
Growth Method | Czochralski |
Density | 7.13g/cm3 |
Mohs Hardness | 8.0 |
Melting Point | 1725℃ |
Refractive Index | 1.954 at 1064nm |