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GGG Substrate

Advantage：

1.Good optical, mechanical and thermal properties Request A Quote

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.

Properties:

Crystal Structure	M3
Growth Method	Czochralski method
Unit Cell Constant	a=12.376Å,(Z=8)
Melt Point（℃）	1800
Purity	99.95%
Density（g/cm³）	7.09
Hardness (Mho)	6-7
Index of Refraction	1.95
Size	10x3，10x5，10x10，15x15，，20x15，20x20，
Size	dia2” x 0.33mm dia2” x 0.43mm 15 x 15 mm
Thickness	0.5mm，1.0mm
Polishing	Single or double
Crystal Orientation	<111>±0.5º
Redirection Precision	±0.5°
Redirection the Edge	2°（special in 1°）
Angle of Crystalline	Special size and orientation are available upon request
Ra	≤5Å（5µm×5µm）

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