GGG Substrate Magneto Optical Crystal - 2.8-76mm Diameter, 7.13g/cm³ Density for YIG/BIG Film Growth
Price:
USD 20-500/pc
MOQ:
1pc
Delivery Time:
4-5weeks
Brand:
Crystro
Product Description
GGG Substrate Overview
GGG (Gadolinium Gallium Garnet) substrates are specialized crystal substrates specifically engineered for magneto-optical film applications in optical communication systems.
Primary Applications
GGG substrates serve as the foundation for YIG and BIG magneto-optical films used in 1.3μm and 1.5μm optical isolators, which are essential components in optical communication devices. The substrates provide optimal lattice matching to ensure successful epitaxial growth of magneto-optical films.
Key Advantages
Performance Benefits
- Large diameter range from 2.8mm to 76mm
- Low optical losses below 0.1%/cm
- High thermal conductivity of 7.4W·m⁻¹·K⁻¹
- Exceptional laser damage threshold exceeding 1GW/cm²
Material Properties
| Property | Specification |
|---|---|
| Chemical Formula | Gd₃Ga₅O₁₂ |
| Lattice Parameter | a = 12.376Å |
| Growth Method | Czochralski |
| Density | 7.13 g/cm³ |
| Mohs Hardness | 8.0 |
| Melting Point | 1725°C |
| Refractive Index | 1.954 at 1064nm |
Technical Specifications
| Parameter | Specification |
|---|---|
| Orientation | [111] within ±15 arc min |
| Wave Front Distortion | <1/4 wave @632nm |
| Diameter Tolerance | ±0.05mm |
| Length Tolerance | ±0.2mm |
| Chamfer | 0.10mm @45° |
| Flatness | <1/10 wave at 633nm |
| Parallelism | <30 arc seconds |
| Perpendicularity | <15 arc min |
| Surface Quality | 10/5 Scratch/Dig |
| Clear Aperture | >90% |
| Available Diameters | 2.8-76mm |
Material Characteristics
GGG substrates exhibit excellent physical and mechanical properties combined with superior chemical stability, making them the preferred substrate material for manufacturing high-performance microwave isolators and optical communication 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