TGG Magneto Optical Crystal for Faraday Rotators & Isolators - 3" Diameter, 40 rad/T/m Verdet Constant at 1064nm
Price:
USD 20-100/pc
MOQ:
10pcs
Delivery Time:
4-5 weeks
Brand:
Crystro
Product Description
TGG Magneto-Optical Crystal for Faraday Devices
TGG (Terbium Gallium Garnet) magneto-optical crystals are premium materials engineered for Faraday rotators and isolators operating in the 400nm-1100nm wavelength range (excluding 470-500nm). These crystals feature exceptional optical properties including high Verdet constant, minimal light loss, superior thermal conductivity, and excellent damage threshold, making them ideal for demanding laser applications.
Key Performance Features
Large Crystal Dimensions
Boule diameter up to 3 inches (76mm)
High Extinction Ratio
Standard: >35 dB | High Grade: >40 dB
Optical Performance
Verdet Constant: 40 rad/T/m at 1064nm
Refractive Index
1.95 at 1064nm wavelength
Primary Applications
- Faraday Rotators for laser systems
- Optical Isolators for signal protection
- YAG laser systems and Ti:sapphire tunable lasers
- Ring lasers and seed injected laser configurations
Material Properties
| Property | Specification |
|---|---|
| Chemical Formula | Tb₃Ga₅O₁₂ |
| Lattice Parameter | a = 12.355 Å |
| Growth Method | Czochralski |
| Density | 7.13 g/cm³ |
| Mohs Hardness | 8.0 |
| Melting Point | 1725°C |
| Refractive Index | 1.954 at 1064nm |
CRYSTRO Manufacturing Specifications
| Parameter | Specification |
|---|---|
| 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 @ 45° |
| Flatness | <1/10 wave at 633nm |
| Parallelism | <30 arc seconds |
| Perpendicularity | <5 arc min |
| Surface Quality | 10/5 Scratch/Dig |
| AR Coating | <0.2% |
| Available Diameters | 2.0 - 76 mm |
Technical Operation
Faraday rotators incorporate TGG rods within specially designed magnetic assemblies. The polarization rotation direction depends solely on magnetic field orientation, independent of light propagation direction. Optical isolators position Faraday rotators between precisely aligned polarizers to enable unidirectional light transmission, providing critical protection for sensitive laser components.
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Company
ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
Location
No. 176, Yuner Rd, Yunhai Rd Industrial Park, Baohe District，Hefei City，Anhui Province
Contact Person
Wu