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[China]
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Address: No. 26, Dongqing Street, High-tech Zone, Zhengzhou ,Henan, China
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HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD |
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In optical communication equipment, 1.3 μ And 1.5 μ The core part of the optical isolator is YIG or big film placed in magnetic field. The GGG single crystal substrates with different tangential directions can match the crystal lattice of this kind of magneto-optical materials, so as to ensure the successful epitaxial growth of YIG and big films.
In the field of magnetic refrigeration, GGG Crystal has been successfully used in the temperature range below 20K for market he Ⅱ flow and pre stage refrigeration of helium nitrogen liquefaction.
Main advantages:
Low optical loss (< 0.1% / cm)
High thermal conductivity (7.4w M-1 k-1)
High laser damage threshold( ± 1GW/cm ²)
Application:
Magneto optic film substrate
High temperature superconducting substrate
Material properties
| Molecular formula | Gd3Ga5O12 |
| Crystal structure | Cubic system |
| Growth pattern | Czochralski |
| Lattice parameters | a=12.383Å |
| Density | 7.13g/cm3 |
| Hardness | 8.0 Mohs |
| Melting point | 1725℃ |
| Reflection coefficient | 1.954 at 1064nm |
Technical parameter
| Size | Maxψ76.2mm(3inch) |
| Thickness | 0.5mm/1mm |
| Polishing | Single side or double side |
Crystal orientation
| < 111 >±0.2° |
| Edge orientation accuracy | 2°(Special requirements up to 1 ° within) |
| Beveled chip | According to the specific requirements, the edge oriented crystal can be tilted at a specific angle (tilt angle 1 °- forty-five °) |
| Surface roughness | Ra≤1nm |
| Packing | Class 100 clean bag, class 1000 ultra static room |
