Terbium Gallium Garnet Crystal TGG Magneto-Optical Crystals Customizable
TGG is an excellent magneto-optical crystal used in various Faraday devices(Polarizer and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
Note:
1. This is a customized product.
2. $55 is a deposit, not the final price of the product.
3. The main factors affecting the price: quantity, size, processing index.
4. Please provide crystal processing drawings or crystal size, membranes, quantity, processing index. (Contact us）
5. Crystal customization time: 3~6 weeks.
6. Warranty: 1 year
Advantages:
1. TGG has twice the Verdet constant of a terbium-doped glass.
2. The thermal conductivity of crystalline TGG is an order of magnitude greater than a typical glass.
3. Optical losses are lower for TGG than Tb-doped glasses.
4. The combination of the above factors make TGG better suited to high average power applications. The principal limiting factor is thermally induced beam distortion. Beam distortion is less for TGG than Tb-doped glasses under the same power loading level.
Properties:
| Prameter |
Value |
| Formula |
Tb3Ga5O12 |
| Crystal Structure |
[111] |
| Verdet Constant (632 nm) |
-134 RadT-1m-1 |
| Verdet Constant (1064 nm) |
-40 RadT-1m-1 |
| Thermal Conductivity |
7.4 W cm-1 K-1 |
| Refractive Index |
1.95 |
| Nonlinear Index, n2 |
8 |
| Figure of Merit, V/a |
27 |
| Figure of Merit, V/n2 |
5 |
TGG Specification:
| Prameter |
Value |
| 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 |
0.1mm @ 45° |
| Flatness |
< 1/10 wave at 633nm |
| Parallelism |
<10 arc secs |
| Perpendicularity |
< 5 arc min |
| Surface Quality |
10/5 Scratch/Dig |
| AR coating |
R<0.2% AR @1064nm |
| Barrel Finish (10-6 inches) |
55 ± 5 |
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Extinction ratio test report:
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