Gadolinium gallium garnet (GGG) is used for a magneto-optical film (YIG thin film or BIG) a special substrate in the optical communication apparatus, YIG or BIG films are 1.3 and 1.5 of the optical isolator core components of different crystal orientation GGG single-crystal substrate may have the best film with such lattice matching and GGG have good physical, mechanical properties and chemical stability, so as to ensure the success of the epitaxial growth film. GGG while also making the best microwave isolator substrate material.

Standard Specification GGG substrate

Maximum crystal size: Ø 30 x 100 mm

Standard chip size: direction <111> ± 0.5 o; Ø 30X 0.5 mm,

10 x 10 x 0.5 mm epitaxial single throw or double throw Ra <5 Å

Note: You can provide special sizes according to customer needs and the direction of the substrate.