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Product Name: | Terbium Gallium Garnet | Chemical Formula: | TB3Ga5O12 |
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Growth Method: | Czochralski | Crystal Structure: | Cubic,a=12.355Å |
Dimension: | MaxΦ101.6 Mm | Density: | 7.13 G/cm3 |
Mohs Hardness: | 8.0 | Refractive Index: | 1.954 At 1064nm |
Terbium Gallium Garnet (TGG) is a crystal material for optical isolator devices. Optical isolator devices make use of the non-reciprocal Faraday effect in TGG. The Faraday effect is the rotation of the plane of polarization of a light beam as it is transmitted through a material in the presence of an external magnetic field coaxial with the light. The polarization rotation is in the same sense regardless of the direction of propagation of the light. An optical isolator is a Faraday rotator combined with suitably aligned polarizers which allows light to pass in one direction only.
1. Large Verdet Constant:35 Rad T-1m-1
2. Low Optical Losses : <0.1%/cm
3. High thermal conductivity: 7.4W m-1K-1
4. High laser damage threshold :>1GW/cm2
Orientation | [111] within ±15 arc min |
Wavefront Distortion | <1/8 wave |
Extinction Ratio | >35dB |
Diameter Tolerance | +0.00mm/-0.05mm |
Length Tolerance | +0.2mm/-0.2mm |
Chamfer | 0.10mm@45º |
Flatness | <1/10 wave at 633nm |
Parallelism | < 30 arc Seconds |
Perpendicularity | < 5 arcmin |
Surface Quality | 10/5 Scratch/Dig |
AR Coating | <0.2% |
Large Dimensions of Crystals | 101.6 mm in diameter |
Product details:
Contact Person: Zheng
Tel: +86 18255496761
Fax: 86-551-63840588
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