Introduction:

Gadolinium gallium garnet (GGG) is a special substrate magneto optical films. In optical communication equipment, a large number of 1.3 and 1.5um 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 ensure the requirements of the substrate in the process of film preparation.

Advantages:

Large dimensions,from 2.8 to 76mm.

Low optical losses (<0.1%/cm)

High thermal conductivity (7.4W m-1K-1).

High laser damage threshold (>1GW/cm2)