Terbium Gallium Garnet TGG Crystal Rod With High Faraday Constant
Terbium Gallium Garnet TGG Crystal Rod With High Faraday Constant
Introduction:
Terbium Gallium Garnet (TGG) mono crystal is one of the best magneto optic material for manufacturing Faraday rotators, isolators with application to wavelength 400-1100nm, excepting 470-500nm. TGG mono crystal has large Verdet constant, low light loss, high thermal conductivity and high laser damage threshold, and is widely used in multi-stage amplification, ring type and seed injection lasers such as YAG and Ti sapphire.
Crystro offers:
| 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 | 2.0--100 mm in diameter |
Main Features:
- Large Size Boule Diameter: up to 4 Inches
- Extinction Ratio Typical: >35 dB High Grade: >40 dB
- Verdet Constant 40 rad/T/m at 1064 nm
- Refractive Index 1.95 at 1064 nm
Main Advantages:
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/cm
Product Picture:
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