Yb:YAB crystals
Main features
- Self-doubling laser crystal
- High thermal conductivity
- Wide absorption bandwidth near 976 nm
- High absorption and emission cross-sections
- Low quantum defect
- Custom crystals available upon request
Application examples
- High power CW lasers
- Mode-locked femtosecond lasers
- CW and mode-locked self-doubling lasers
Request custom
- Description
- Properties
- Absorption and emission curves
- Specifications
Yb3+:YAB is one of the few representatives with multifunctional properties: as a negative uniaxial crystal, it also possesses nonlinear optical properties, permitting a direct conversion of the infrared radiation to the visible through second order nonlinear processes. High concentrations of Yb3+ ions can be included in the YAB crystal matrix with little concentration quenching. Yb:YAB crystals feature good mechanical strength, good thermal conductivity, and stable chemical characteristics.
| Spectroscopic and thermo-mechanical properties | |
|---|---|
| Absorption peak wavelength | 976 nm |
| Absorption cross-section at peak | 3,8 × 10-20 cm2 |
| Absorption bandwidth at a peak wavelength | 20 nm |
| Laser wavelength | 1040 nm |
| Lifetime of 2F5/2 energy level | 680 μs |
| Emission cross-section @1040 nm | 0,5 × 10-20 cm2 |
| Refractive index @632.8 nm | n0=1,7757, ne=1,7015 |
| Crystal structure | Trigonal |
| Density | 3,84 g/cm3 |
| Mohs hardness | 7,5 |
| Thermal conductivity | ~6 Wm-1K-1 |
| dn/dT | 1,4 × 10-6 (//a) K-1, 4,8 × 10-6 (//c) K-1 |
| Thermal expansion coefficient | 2×10-6 (//a) K-1, 9.5×10-6 (//c) K-1 |
| Typical doping level | 5-8 wt.% |
| Yb:YAB crystals | |
|---|---|
| Orientation | [111] |
| Clear aperture | >90% |
| Face dimensions tolerance | +0,0/-0,1 mm |
| Length tolerance | ±0,1 mm |
| Parallelism error | <10 arcsec |
| Perpendicularity error | <10 arcmin |
| Protective chamfers | <0,15 mm at 45˚ |
| Surface quality | 10-5 S-D |
| Surface flatness | <λ/10@632,8 nm |
| Coatings | AR(R<0,5%)@980 nm + AR(R< 0,35%)@1040-1070 nm |
| Laser-induced damage threshold | >10 J/cm2@1040 nm, 10 ns |
| Mount | Unmounted |
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Face dimensions
Length
End faces
Orientation
Doping
Coatings
SKU
PRICE
QUANTITY
3x3 mm
2 mm
Right-angle cut
c-cut
10%
AR/AR@960-1060 nm
12826
Request
3x3 mm
2 mm
Brewster-angle cut
c-cut
10%
uncoated
12827
Request
3x3 mm
2 mm
Right-angle cut
θ = 31°, φ = 0°
10%
AR/AR@520+976+1040 nm
12828
Request
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