Terbium Scandium Aluminum Garnet Crystal Description
Terbium Scandium Aluminum Garnet Crystal is a key isolator material for next-generation fiber lasers. As an ideal magneto-optic crystal in visible and infrared regions, TSAG has the advantages of high Verdet constant, and excellent thermal and mechanical properties.
- Large Verdet constant(48radT-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.
Terbium Scandium Aluminum Garnet Crystal Specification
Main Properties
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Transmittance Range(bulk/uncoated)
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400-1600nm
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Crystal Structure
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Cubic, Space group Ia3d
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Chemical Formula
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Tb3Sc2Al3O12
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Lattice Parameter
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a=12.3Å
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Growth Method
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Czochralski
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Density
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5.91g/cm3
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Melting Point
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1970℃±10℃
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Optical Properties
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Orientation
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±15′
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Wavefront Distortion
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<λ/8
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Extinction Ratio
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>30dB
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Diameter Tolerance
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+0.00mm/-0.05mm
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Length Tolerance
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+0.2mm/-0.2mm
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Chamfer
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0.1mm @ 45°
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Flatness
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<λ/10 at 633nm
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Parallelism
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<3′
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Perpendicularity
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<5′
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Surface Quality
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10/5
|
AR coating
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<0.3% @ 1064nm
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Terbium Scandium Aluminum Garnet Crystal Transmission Curve
Terbium Scandium Aluminum Garnet Crystal Applications
Terbium Scandium Aluminum Garnet Crystal is used to make Faraday rotators and isolators.
Terbium Scandium Aluminum Garnet Crystal Packaging
Our Terbium Scandium Aluminum Garnet Crystal is carefully handled during storage and transportation to preserve the quality of our product in its original condition.