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CY2352 Gadolinium Gallium Garnet Crystal Substrates

Catalog No. CY2352
Size 10×5, 10×10, 15×15, 20×15, 20x20mm
Material GGG
Growth Method Czochralski method

Our optical grade undoped Czochralski grew Gadolinium Gallium Garnet Crystal Substrates with high optical homogeneity excluding central core of crystal boules, without visible striae with shadowgraph, inclusions and bubbles.




Description

Gadolinium Gallium Garnet Crystal Substrates Description

Gadolinium gallium garnet (GGG) is a dedicated substrate for the magneto-optical film. In the optical communication devices, require a lot of using 1.3μ and 1.5μ optical isolator, Its core component is the YIG or BIG film been placed in a magnetic field. Gadolinium Gallium Garnet Crystal Substrates of different tangential, which can achieve the best lattice match with this magneto-optical material, thus ensuring the YIG, BIG film epitaxial growth be successful.

GGG Crystal Substrates have good physical and mechanical properties and chemical stability; it is the best substrate material for making the microwave isolators.

Gadolinium Gallium Garnet Crystal Substrates Specification

Crystal structure

Cubic

Growth method

Czochralski method

Lattice constant

a=12.376Å,(Z=8)

Melt point(℃)

1800

Purity

99.99%

Density

7.09

Hardness

6-7(mohs)

Refractive index

1.95

Standard Size (mm)

10×5, 10×10, 15×15, 20×15, 20×20

dia2” x 0.33mm, dia2” x 0.43mm, dia 3″ x 0.5mm

Standard Thickness

0.5mm,1.0mm

Polishing

Single or double side polished

Crystal Orientation

<111>, <100>, <110>

Orientation accuracy

±0.5°

Edge Orientation accuracy:

2°(special in 1°)

Other angle of substrate

Special size and orientation are available upon request

Surface roughness(Ra):

≤5Å(5µm×5µm)

Gadolinium Gallium Garnet Crystal Substrates Application

Gadolinium Gallium Garnet Crystal Substrates have been used in:

–        Microwave isolators

–        Magneto-optical film

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Gadolinium Gallium Garnet Crystal Substrates
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