Faraday Crystals Terbium gallium garnet (TGG) single crystal

Terbium gallium garnet (TGG) single crystal is the best magneto-optical material for production of Faraday rotator and isolator, suitable wavelength of 400-1100nm (not including 470nm-500nm). Faraday rotator is by the TGG crystal bar and a specially designed magnet. The beam through TGG monocrystalline, its direction of polarization will be deflected under the magnetic field, the deflection direction is only associated with the direction of the magnetic field, regardless of the direction of beam propagation. Light isolator consists of a 45 degree deflection optical rotator and a pair of polarizers, it makes the beam through only one direction, while blocking reverse spread beam.

Main advantages: TGG single crystal has a large magneto-optical constant, low optical loss, high thermal conductivity and high laser damage threshold, widely used in YAG, Ti-doped sapphire multi-stage amplification, ring, seeds injection lasers.

Main Specifications		Physical and Chemical Properties
Directional accuracy	<111>within ±15 arc min	Chemical Formula	Tb3Ga5O12
Wave front distortion	<λ/8 wave total	Lattice constants	a=12.355
Extinction ratio	>30dB	Growth method	Czochralski method
Diameter	+0.00mm/-0.05mm	Density	7.13g/cm3
Length	+0.2mm/-0.2mm	Mohs hardness	8
Chamfer	0.2mm at 45°	Melting point	1725ºC
Flatness	<λ/10 wave at 633nm	Index of refraction	1.954 at 1064nm
Parallelism	<30 arc seconds	Thermal conductivity	7.4 W·m-1·K-1
Verticality	<5 arc minutes	Size	According to your request
Surface quality	10/5 Scratch/Dig
AR coating	<0.2%