Introduction: TGG is an excellent magneto-optical crystal used in various Faraday devices(Rotator and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
Main Advantage：
Large Verdet Constant (35 Rad T-1m-1).
Low optical losses (<0.1%/cm)
High thermal conductivity (7.4W m-1K-1).
High laser damage threshold (>1GW/cm2).
Main Application：Faraday Rotator, Optical Isolator etc..
Main Properties：
|
Chemical Formula |
Tb3Ga5O12 |
|
Lattice Parameter |
a=12.355Å |
|
Growth Method |
Czocralski |
|
Density |
7.13g/cm3 |
|
Mohs Hardness |
8.0 |
|
Melting Point |
1725 ℃ |
|
Refractive Index |
1.954 at 1064nm |
CASTECH supply TGG crystal with：
|
Standard TGG Rod Specification: |
|
|
Orientation |
[111] within ±15 arc min |
|
Wave Front Distortion |
< 1/8 wave |
|
Extinction Ratio |
> 30dB |
|
Diameter |
+0.00mm/-0.05mm |
|
Length |
+0.2mm/-0.2mm |
|
Chamfer |
0.10mm @ 45° |
|
Flatness |
< 1/10 wave at 633nm |
|
Parallelism |
< 30 arc Seconds |
|
Perpendicularity |
< 5 arc min |
|
Surface Quality |
10/5 Scratch/Dig |
|
AR coating |
<0.2% | |
