Faraday Crystal TGG Crystal For Optical Isolators D4.2x7.5mm
D4.2*7.5mm Faraday Crystal TGG Crystal For Optical Isolators
High Laser Damage Threshold Faraday Crystal TGG (Terbium Gallium Garnet )
Introduction :
Terbium gallium garnet (TGG) single crystals are the most popular media for compact Faraday rotators and Faraday isolators for visible and near-infrared ranges. Their main advantages are high Verdet constant, high optical quality, and low absorption. The main technique of TGG single crystals growing is still the Czochralski method despite efforts directed to the development of new ways of obtaining these crystals. This method allows growing crystals of high optical quality.
With the unremitting efforts of the professional R&D team, Crystro successfully grew a TGG crystal with a diameter of 100mm in June 2020. now our company has the large-scale production capacity of large-scale high-quality TGG crystals and can provide high-quality TGG crystals of different specifications according to customer needs.
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
TGG Transmission Curve :
Crystro TGG rods specification :
We can offer to 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 |
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