GGG Substrate
Gallium Gadolinium Garnet (Gd 3 Ga 5 O 12 or GGG) single crystal is material with good optical, mechanical and thermal properties which make it promising...
GGG Substrate
Gallium Gadolinium Garnet (Gd 3 Ga 5 O 12 or GGG) single crystal is material with good optical, mechanical and thermal properties which make it promising for use in fabrication of various optical components as well as substrate material for magneto-optical films and high–temperature superconductors. It is the best substrate material for infrared optical isolator (1.3 and 1.5um), which is a very important device in op...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Stock Items12 listed specifications
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
Gallium Gadolinium Garnet (Gd3Ga5O12 or GGG) single crystal is material with good optical, mechanical and thermal properties which make it promising for use in fabrication of various optical components as well as substrate material for magneto-optical films and high–temperature superconductors. It is the best substrate material for infrared optical isolator (1.3 and 1.5um), which is a very important device in optical communication. It is made of YIG or BIG film on the GGG substrate plus birefringence parts. Also GGG is an important substrate for microwave isolator and other devices. Its physical, mechanical and chemical properties are all good for the above applications.
Our GGG substrates are available in various sizes and thicknesses, catering to different customer requirements. The crystals are grown using advanced techniques, ensuring uniformity and high crystalline quality.
Features
- Low optical loss
- High thermal conductivity
- High laser damage threshold
- Good mechanical properties and chemical stability
Applications
- Microwave isolators
- Optical communication
- Magnetic refrigeration
Processing Capability
- Orientation:<100>,<110>,<111>, etc.
- Dimension: 1”, 2”, 20x20mm, 10x10mm, 10x5mm, 5x5mm, etc.
- Thickness: 0.33mm, 0.43mm, 0.5mm, 1.0mm, etc.
- Available items: wafers, substrate, blanks, and customized optics
Specification and Properties of GGG Substrate
| Crystal Structure | Cubic |
| Growth Method | Czochralski |
| Lattice Constant | a=12.376 Å, (Z=8) |
| Melt Point | 1800 ℃ |
| Purity | 99.95% |
| Density | 7.09 g/cm3 |
| Hardness | 6-7 Mohs |
| Refractive Index | 1.95 |
| Orientation | <100>,<110>,<111>, etc. |
| Orientation Tolerance | ±0.5° or better |
| Dimension | 1”, 2”, 20x20mm, 10x10mm, 10x5mm, 5x5mm, etc. |
| Dimension Tolerance | ±0.1 mm or better |
| Thickness | 0.33mm, 0.43mm, 0.5mm, 1.0mm, etc. |
| Thickness Tolerance | ±0.05 mm or better |
| Surface Finish | Single-side polished (SSP)/Double sides polished (DSP) |
| Surface Roughness | Ra≤5Å (5×5µm) |
| Package | Class 100 clean bag, Class 1000 super clean room |
Available GGG Substrate Items
The following specifications are listed on our original catalogue. Custom dimensions, orientations and surface finishes are produced to your drawing.
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (100), Double Sides Polished (20 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (100), Single Side Polished (20 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (110), Double Sides Polished (20 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (110), Single Side Polished (20 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (111), Double Sides Polished (20 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (111), Single Side Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (100), Double Sides Polished (10 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (100), Single Side Polished (10 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (110), Double Sides Polished (10 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (110), Single Side Polished (10 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (111), Double Sides Polished (10 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm GGG Single Crystal Substrates, Orientation: (111), Single Side Polished (10 Pieces) | View |
Other Crystal Wafer and Substrate Materials
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