Yb:YAP crystals
Main features
- Biaxial orthorhombic crystal
- High absorption cross-section dependent upon the crystallographic orientation
- High thermal conductivity
- Low quantum defect
- Custom crystals available upon request
Application examples
- Femtosecond lasers and regenerative amplifiers
- CW and passively mode-locked thin-disk lasers
Request custom
- Description
- Properties
- Absorption and emission curves
- Standard specifications
Yttrium aluminate doped with Yb3+, (Yb3+YAP) is a biaxial orthorhombic crystal. YAP crystal hardness and thermal conductivity are similar to YAG but exhibits a highly anisotropic thermal expansion coefficient and is birefringent. Emission wavelengths are polarized, while emission and absorption cross-sections are strongly dependent upon the crystallographic orientation. The absorption cross-sections of the Yb:YAP crystal is higher than that of the Yb:YAG crystal.
| Spectroscopic and thermo-mechanical properties | |
|---|---|
| Absorption peak wavelength | 978 nm |
| Absorption cross-section at peak | 6,6 × 10-20 cm2 |
| Absorption bandwidth at peak wavelength | 4 nm |
| Laser wavelength | 1040 nm |
| Lifetime of 2F5/2 energy level | 500 μs |
| Emission cross-section @1040 nm | 0,5 × 10-20 cm2 |
| Refractive index @632.8 nm | 1,96 (//a), 1,94 (//b), 1,97 (//c) |
| Crystal structure | Orthorhombic |
| Density | 5,35 g/cm3 |
| Mohs hardness | 8,5 |
| Thermal conductivity | 11,7 (//a), 10,0 (//b), 13,3 (//c) W/m*K |
| dn/dT | 7,7 × 10-6 (//a) K-1, 11,7 × 10-6 (//b) K-1, 8,3 × 10-6 (//c) K-1 |
| Thermal expansion coefficient | 2,32 × 10-6 (//a) K-1, 8,08 × 10-6 (//b) K-1, 8,7 × 10-6 (//c) K-1 |
| Typical doping level | <2 at.% |
| Yb:YAP crystals | |
|---|---|
| Orientation | a-cut |
| 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 | <0,1 mm at 45˚ |
| Surface quality | 10-5 S-D |
| Surface flatness | <λ/10@632,8 nm |
| Coatings | AR(R<0,25%)@978 nm + AR(R<0,15%)@1020-1070 nm on both sides |
| Laser-induced damage threshold | >10 J/cm2@1030 nm, 10 ns |
| Mount | Unmounted |
Order your item
Face dimensions
Length
End faces
Doping
Coatings
SKU
PRICE
QUANTITY
3x3 mm
5 mm
Right angle cut
0,7%
AR/AR@978 nm+1020-1070 nm
7825
Request
3x3 mm
5 mm
Brewster cut
0,7%
uncoated
7826
Request
1
/1
Show all
