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GGG Gd3Ga5O12 Crystals ±0.05mm Thickness Diameter Tolerance

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-GGG Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: GGG Laser Crystals Orientation Tolerence: < 0.5°
Surface Flatness: </8@632nm Surface Quality: 10/5
High Light:

optical window

,

magnesium fluoride window


Product Description

Description

Gadolinium Gallium Garnet (GGG, Gd3Ga5O12) is a magneto-optical and microwave substrate. It is the best substrate material for infrared optical isolator (1.3 and 1.5um), which is a very important device in optical communication.
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.

 

Feature

  • good optical, mechanical and thermal properties
  • best substrate for infrared optical isolator
  • good substrate for microwave isolator

Application

  • GGG substrate
  • GGG led

Main Specification

Materials GGG
Orientation [001] or [100] or [111] < ±0.5°
Parallel 10〞
Perpendicular
surface Quality 44109
Wavefront Distortion λ/4 @632nm
Surface Flatness λ/8 @632nm
Clear Aperture >95%
Chamfer <0.1×45°
Thickness/Diameter Tolerance ±0.05 mm
Maximum dimensions dia 50×100mm
Coatings AR/AR@940+1030;HR@1030+HT@940+AR1030;

Physical and chemical characteristics

Chemical formula Gd3Ga5O12
Crystal structure cubic
Lattice parameters, Å a = 12.383 Å
Molecular Weight 1012.5
Density, g/cm3 7.08 g/cm3
Transmission Range 0.40 ~ 7.0 µm
Refractive index 1.97 @480nm,
Melting Point 1730°C
Thermal conductivity at 25°C, W x cm-1 x °K-1 7.05
Thermal expansion coefficient 8.2×10-6 /K
Dielectric Constant 30
Dielectric loss tangent, at 10 GHz 0.15

Standard product

Orientation End configuration, nm Thickness, nm Refractive index
[0 0 1] 10×10 0.5 1.97 @ 480nm
1.96 @ 633nm
1.95 @ 1064nm
[1 1 0]
[1 1 1]
[0 0 1] dia 18 3.3
[1 1 0]
[1 1 1]
[0 0 1] dia 20 1
[1 1 0]
[1 1 1]
[0 0 1] dia 25.4 0.5
[1 1 0]
[1 1 1]
[0 0 1] 1
[1 1 0]
[1 1 1]

 

 

 

Contact Details
june

Phone Number : +8618699681379