Terbium Gallium Garnet (TGG) Crystal
Main Advantage：
Large Verdet Constant (35 Rad T-1m-1).
Low optical losses (<0.1%/cm)
High thermal conductivity (7.4W m-1K-1).
High laser damage threshold (>1GW/cm2).
Main Application：Faraday Rotator, Optical Isolator etc.
Main Properties：
Chemical Formula | Tb3Ga5O12 |
Lattice Parameter | a=12.355Å |
Growth Method | Czocralski |
Density | 7.13g/cm3 |
Mohs Hardness | 8.0 |
Melting Point | 1725 ℃ |
Refractive Index | 1.954 at 1064nm |
Standard TGG Rod Specification:
Orientation | [111] within ±15 arc min |
Wave Front Distortion | < 1/8 wave |
Extinction Ratio | > 30dB |
Diameter | +0.00mm/-0.05mm |
Length | +0.2mm/-0.2mm |
Chamfer | 0.10mm @ 45° |
Flatness | < 1/10 wave at 633nm |
Parallelism | < 30 arc Seconds |
Perpendicularity | < 5 arc min |
Surface Quality | 10/5 Scratch/Dig |
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