ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
ANHUI CRYSTRO CRYSTAL MATERIALS CO., LTD. INNOVATOR FOR MAGNETO OPTICAL CRYSTALS
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TSAG Crystals For Faraday Isolator Large Verdet Constant Than TGG Crystals
Description:
TSAG Faraday crystal is an ideal magneto-optical crystal, which is mainly used in the wavelength range of 400-1600 nanometers, namely the visible and infrared bands. TSAG is an indispensable crystal for the next generation of high-power lasers due to its advantages of high constant, good thermal and mechanical properties. Compared with TGG, the Verdet constant at 1064 nm of TSAG is 20 % higher and the absorption is 30 % lower. Recently, the optical and scintillation properties of TSAG (Tb3Sc2Al3O12) crystal was investigated, and capabilities to be used as a scintillator screen was demonstrated.
Features:
Large Verdet constant(48 radT-1m-1 at 1064 nm),about 20% higher than that of TGG;
Low absorption(＜3000 ppm/cm at 1064 nm),about 30% less than that of TGG
High power compliant;
Low thermally-induced birefringence;
Making the isolator small.
Applications:
Faraday isolator based on TSAG crystal for high power lasers
Imaging applications:Scintillation properties of TSAG crystal for imaging applications
Main Properties:
| Transmittance Range(bulk/uncoated) | 400-1600nm |
| Crystal Structure | Cubic,Space group Ia3d |
| Chemical Formula | Tb3Sc2Al3O12 |
| Lattice Parameter | a=12.3Å |
| Growth Method | Czochralski |
| Density | 5.91g/cm3 |
| Melting Point | 1970℃±10℃ |
CRYSTRO supply TGG crystal with:
| Orientation | ±15′ |
| Wavefront Distortion | ＜λ/8 |
| Extinction Ratio | ＞30dB |
| Diameter Tolerance | +/-0.05mm |
| Length Tolerance | +/-0.1mm |
| Chamfer | 0.1mm @ 45° |
| Flatness | ＜λ/10 at 633nm |
| Parallelism | ＜3′ |
| Perpendicularity | ＜5′ |
| Surface Quality | 10/5 |
| AR coating | ＜0.3% @ 1064nm |