Product

  • Terbium Gallium Garnet(TGG)
  • Terbium Gallium Garnet(TGG)

Terbium Gallium Garnet(TGG)

TGG single crystal is the best magneto-optic material for making Faraday rotators and isolators. Faraday rotators are composed of TGG crystal rods and a specially designed magnet.
crystal birefringent YVO4

Product introduction

  • TGG single crystal is the best magneto-optic material for making Faraday rotators and isolators. Faraday rotators are composed of TGG crystal rods and a specially designed magnet. The polarization direction of the beam passing through the magneto-optical material will be deflected under the action of the magnetic field, and its deflection direction is only related to the direction of the magnetic field, but not to the propagation direction of the beam. The optical isolator consists of a 45-degree deflection rotator and a pair of 45-degree polarizers, which allow the beam to pass in only one direction and block the reverse beam. TGG single crystal has a large magneto-optical constant, high thermal conductivity, low optical loss and high laser damage threshold, and is widely used in YAG lasers, tunable gemstone-doped lasers and ring cavity lasers.

    Crystal Terbium Gallium Garnet(Tb3Ga5O12)
    Orientation [111]Within 5 Degrees
    Wavefront Distortion(Per Inch of Rod Length) λ/8
    Extinction Ratio 30Db over 2/3 Clear Aperture
    Diameter Tolerance +0.000″/-0.002″
    Length Tolerance +0.010/-0.010″
    Chamfer0.005″ +/-0.003″@45°+/-5°
    Flatness λ/10 wave@633nm
    Parallelism <1 minutes of arc
    Perpendicularity <10 minutes of arc
    Surface Quality 10/5Scratch /Dig per MIL-O-13830A
    Reflectivity <0.25%@1064nm< td="">
    Thermal Conductivity 7.4W cm-1K-1
    Refractive Index 1.95@1064nm


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