TGG crystal is also known as terbium gallium garnet crystal, with the chemical formula Tb3Ga5O12. It is a magneto-optical crystal with good comprehensive properties.
TGG crystal has a high magneto-optical constant, low optical loss, high thermal conductivity, and a high laser damage threshold. TGG single crystal is the best magneto-optical material for Faraday polarizer and isolator, and the applicable wavelength is 400~1100 nm (excluding 470~500 nm).
TGG (terbium gallium garnet) single crystal has a very high Verdet constant in the range of 4oonm-11oonm (excluding 475-5oonm), which is the best and most widely used magneto-optical material in Faraday rotators and isolators.
By placing the rod of this material in a strong magnetic field, the Faraday rotation angle of more than 45 °C can be achieved. This allows the construction of a Faraday rotator as the main component of the Faraday isolator, which transmits light in only one direction.
Features of TGG crystal:
- High damage threshold
- Low optical loss
- High thermal conductivity
- Large Verdet constant
|Wavefront Distortion||﹤λ/8 @632.8nm|
|Size Tolerance||Diameter：+0.0/-0.05 mm，
|Surface Flatness||﹤λ/10 @632.8nm|
|Size||According to customer requirements|
|Coating||Anti-reflective film can be made according to customer requirements|
Physical and Chemical Properties
|Growth Way||Pulling Method|
|Thermal Conductivity||7.4 W cm-1k-1|
|Faraday Rotator||Faraday Isolator|
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