GGG SGGG Crystal Substrates
Gadolinium gallium garnet(GGG) is a special substrate magneto optical flims. In optical commuication equipment, a large number of 1.3 and 1.5 micron optical isolators are needed, and the core component is YIG or BIG film placed in the magnetic field. Different tangential GGG single crystal substrates can be matched with the lattice of such magneto-optical materials, thus ensuring the successful epitaxial growth of YIG and BIG films. The good physical, mechanical and chemical stability of GGG also ensures the requirements of the substrate in the process of film perparation. The substrate material is made of microwave isolator GGG.
- Type Of Crystal: GGG
- Crystal Diameter: up to 104 mm
- Crystal Length: up to 150 mm
- AR Coating: Uncoated
- Refractive Index: 1.954 at 1064nm
- Material: GGG/SGGG
- Chemical Formular: Gd3Ga5O12/Substitited GGG
- Lattice Constant: 12.383A/12.497A
- Density: 8.0/7.5
- Melting Point: 1725℃/1730℃
SGGG is used as substrates for liquid epitaxy.
It's dedicated substrates for magneto-optical film.
Large dimensions 4inch
Double Side Polished
High thermal conductivity (7.4W m-1K-1).
High laser damage threshold (>1GW/cm2)
Low optical losses (<0.1%/cm)
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