Magneto Optical Crystal Single Crystal Terbium Gallium Garnet TGG Rods
High-Performance Magneto-Optical Crystal Single Crystal TGG Rods
Introduction :
Terbium gallium garnet crystal (TGG) is a high-performance magneto-optical crystal in the visible and near-infrared spectrum. It is widely used in laser technology, optical communication, and optical information processing technology. It has the characteristics of high Feld constant, low light absorption coefficient, high laser damage threshold, and good optical performance. These good material properties make TGG crystal an ideal material for magneto-optical isolators.
In recent years, the growth of large-size and high-quality TGG crystals has always been a hot research topic in the field of crystal materials at home and abroad. With the unremitting efforts of the professional R&D team, Crystro has successfully grown TGG crystals with a diameter of 4 inches in June 2020.
Crystro TGG rods specification :
We can offer customize TGG crystal sizes upon your request.
| Orientation | [111] within ±15 ' |
| Wavefront Distortion | <λ/8 |
| Extinction Ratio | >35dB |
| Diameter Tolerance | +0.00mm/-0.05mm |
| Length Tolerance | +0.2mm/-0.2mm |
| Chamfer | 0.10mm@45º |
| Flatness | <λ/10 @ 633nm |
| Parallelism | < 30 " |
| Perpendicularity | < 15 ' |
| Surface Quality | 10/5 Scratch/Dig |
| AR Coating | <0.2%@1064nm |
| Large Dimensions of Crystals | Maxφ101.6mm |
Material Properties :
| Chemical Formula | TB3Ga5O12 |
| Lattice Parameter | a=12.355Å |
| Growth Method | Czochralski |
| Density | 7.13g/cm3 |
| Mohs Hardness | 8.0 |
| Melting Point | 1725℃ |
| Refractive Index | 1.954 at 1064nm |
Main Features :
- Large Size Boule Diameter: up to 4”
- Extinction Ratio Typical: >35 dB High Grade: >40 dB
- Verdet Constant 40 rad/T/m at 1064 nm
- Refractive Index 1.95 at 1064 nm
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