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Yb:YAG is a good laser gain material which has a much
larger absorption bandwidth. It can generate 1.03µm laser output pumped
at 0.94µm. Yb:YAG can be used in high power diode-pumped lasers and
others potential applications.
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Main Specifications
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|
| Yb-dopant
concentration |
0.2%---30% at% (Tolerance 10% of
concentration) |
| Diameter |
20 mm (+0.0/ -0.025mm) |
| Length |
1~70mm, (+/-0.05mm) |
Coating
specification
|
a) AR @ 940nm or HR @940nm
b) AR @ 1053nm or AR @1030nm or HR @1053nm |
| Parallelism |
< 10 arc seconds |
| Perpendicularity |
< 5 arc minutes |
| Chamfer |
0.15x45° |
| Barrel
finish |
ground or polished |
| Wavefront
Distortion |
<λ/10 per inch at 632.8nm for
<7mm |
| Surface
flatness |
<λ/10 at 632.8nm |
| Surface
quality |
better than 20/10 |
| Clear
aperture |
Central 95% |
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Physical Properties
|
|
| Chemical Formula |
Yb:Y3Al5O12 |
| Crystal Structure |
Cubic |
| Lattice Constants |
12.01Ä |
| Melting Point |
1970°C |
| Density |
4.56 g/cm3 |
| Mohs Hardness |
8.5 |
| Thermal Expansion Coefficient |
7.8x10-6 /K , [111],
0-250°C |
| Thermal Conductivity |
14 W.s /m /K @ 20°C |
| Optical
Properties |
|
| Loss Coefficient |
0.003 cm-1 |
| Index of Refraction |
1.82 |
| Lasing Wavelength |
1030 nm |
| Pump Wavelength |
940 nm |
| Absorption band about pump wavelength |
10 nm
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