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| Name: | TGG Crystal | Chemical Formula: | TB3Ga5O12 |
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| Growth Method: | Czochralski | Crystal Structure: | Cubic |
| Density: | 7.13g/cm3 | Mohs Hardness: | 8.0 |
| Melting Point: | 1725℃ | Refractive Index: | 1.954 At 1064nm |
| Lattic Parameter: | A=12.355Å | Verdet(rad/M/T): | 190/134/40@532nm/633nm/1064nm |
| High Light: | TB3Ga5O12 TGG Crystal Rods,TGG Magneto Optic Crystal Material,Isolator Devices Magneto Optical Crystals |
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Terbium Gallium Garnet (TGG) is an excellent magneto-optical crystal used in various Faraday devices (Rotator and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.TGG has many advantages compared to other magneto-optical crystals. It has less optical loss, lower thermally induced beam distortion and twice bigger Verdet constant than a terbium doped glass.
1. Large Verdet Constant :35 Rad T-1m-1
2. Low Optical Losses : <0.1%/cm
3. High thermal conductivity : 7.4W m-1K-1
4. High laser damage threshold :>1GW/cm
TGG Transmission Curve :
| 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--100 mm in diameter |
Contact Person: Chen Dongdong
Tel: +86 18326013523
Fax: 86-551-63840588
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