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Terbium gallium garnet (Tb3Ga5O12, TGG) is a crucial category of magneto-optical materials for use in the visible and the near-infrared spectral regions (400-470nm and 500-1500nm)
Diameter: 4 inches max. (Customized sizes can be 2.8mm, 5mm, 2.3mm) |
Large Verdet Constant (Typical 35dB, up to 40dB)
Low optical losses (< 0.1%/cm) High thermal conductivity (7.4Wm-1K-1) High laser damage threshold (> 1GW/cm2) Refractive index 1.95 at 1064nm Applications: Faraday rotator, Optical isolator, Magnetic sensor, Free space isolator |
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TSAG (Tb3Sc2Al3O12) Faraday crystal is an ideal magneto-optical crystal, which is mainly used in the wavelength range of 400-1600nm, namely the visible and infrared bands
Diameter: 1-70mm |
Large Verdet constant (48 radT-1m-1 at 1064nm), about 20% higher than that of TGG
Low absorption (< 3000ppm/cm at 1064nm), about 30% less than that of TGG High power compliant Low thermally-induced birefringence Making the isolator small Applications: Faraday isolator (high power lasers), Imaging applications |
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