Dia 5.2x15mm Terbium Gallium Garnet TGG Faraday Crystal
Dia 5.2*15mm Terbium Gallium Garnet Faraday Effect Crystal TGG Rods
Introduction :
Terbium gallium garnet (Tb3Ga5O12, TGG) is an important magneto-optical material for visible light and near-infrared spectroscopy (400-470nm and 500-1500nm). TGG crystal has a large Verdet constant (35RadT−1m−1 at 1064nm), high thermal conductivity (7.4Wm−1K−1), low optical loss (<0.1%/cm), and high laser damage threshold (>1GW/cm2) ). Therefore, it is a very attractive Faraday rotating crystal, suitable for making magneto-optical isolators, magneto-optical switches, magneto-optical modulators, etc. It is widely used in YAG, titanium-doped sapphire, and other multi-stage amplification, ring, seed injection lasers.
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
Crystro TGG rods specification :
We can offer customize TGG crystal sizes upon your request.
| Orientation | [111] within ±15 arc min |
| Wavefront 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 arcmin |
| Surface Quality | 10/5 Scratch/Dig |
| AR Coating | <0.2% |
| Large Dimensions of Crystals | 2.0--100 mm in diameter |
Product Picture:
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.