3 Inch Low Optical Loss TGG Faraday Optical Isolator Crystal - 35dB Extinction Ratio, <0.1%/cm Loss
Price:
Negotiable
MOQ:
1pc
Delivery Time:
3-4 weeks
Brand:
Crystro
Product Description
3 Inch Low Optical Loss TB3Ga5O12 Faraday Optical Isolator TGG Crystal
High-performance terbium gallium garnet crystal designed for advanced optical isolation applications with exceptional optical properties and minimal signal loss.
Applications
- Faraday Rotator Systems
- Faraday Polarizer Components
- Magnetic Sensor Devices
- Optical Isolator Assemblies
Technical Principle
The Faraday polarizer consists of a TGG crystal rod integrated with a specially engineered magnet. When light passes through the magneto-optical material, its polarization rotates. This rotation depends solely on the magnetic field direction and remains independent of the light propagation direction, enabling unidirectional light transmission.
Material Properties
| Property | Specification |
|---|---|
| Chemical Formula | TB3Ga5O12 |
| Lattice Parameter | a=12.355Å |
| Growth Method | Czochralski |
| Density | 7.13g/cm³ |
| Mohs Hardness | 8.0 |
| Melting Point | 1725℃ |
| Refractive Index | 1.954 at 1064nm |
Technical 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@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% |
| Available Diameters | 2.0-76 mm |
Performance Advantages
- Large Verdet Constant (Typical 35 dB, Up to 40dB)
- Low optical losses (<0.1%/cm)
- High laser damage threshold (>1GW/cm²)
- Twice the Verdet constant compared to terbium-doped glass
- Thermal conductivity one order of magnitude greater than typical glass
- Lower optical losses than Tb-doped glasses
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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