Nanjing Crylink Photonics Co.,Ltd
Growing crystal, Lingling Value.
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| Materials | Nd: YVO4 |
| Concentration Tolerance (atm%) | 0.5%, 1.1%, 2.0%, 3.0% |
| Orientation | A-cut or C-cut |
| Parallelism | 20 |
| Perpendicularity | 5 |
| Surface Quality | 10/5 Scratch/Dig per MIL-O-13830 B |
| Wavefront Distortion | </8 @633nm |
| Surface Flatness | /10@ 633 nm |
| Clear Aperture | >90% |
| Chamfer | ≤0.2mm@450 |
| Dimension Tolerance | (W±0.1mm)x(H±0.1mm)x(L+0.2/-0.1mm) (L<2.5mm) |
| (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm) | |
| Angle Tolerance | ≤0.5° |
| Damage Threshold[GW/cm2 ] | >1 for 1064nm, TEM00, 10ns, 10Hz (AR-coated) |
| Coatings | HR@1064nm+532nm+HT@808nm/AR@1064nm+532nm |
Physical and Chemical Properties
| Crystal Structure | Zircon Tetragonal, space group D4h-I4/amd |
| Lattice Constants | a=b=7.12, c=6.29 |
| Density | 4.22g/cm3 |
| Melting Point | 1825 |
| Thermal Conductivity /(Wm-1K-1@25°C) | 5.2 |
| Thermal Optical Coefficient(dn/dT) | dno/dT=8.5×10-6/K; dne/dT=2.9×10-6/K |
| Thermal Expansion /(10-6K-1@25°C ) | a = 4.43, c= 11.4 |
| Hardness (Mohs) | 4~5 |
Optical and Spectral Properties
| Laser Wavelength | 1064nm, 1342nm |
| Polarized Laser Emission | polarization; parallel to optic axis (c-axis) |
| Pump Wavelength | 808nm |
| Intrinsic Loss | 0.02cm-1 @1064nm |
| Diode Pumped Optical to Optical Efficiency | >60% |
| Emission Cross Section | 25×10-19cm2@1064nm |
| Fluorescence Lifetime | 90 s (about 50 s for 2 atm% Nd doped) @ 808 nm |
| Gain Bandwidth | 0.96nm @1064nm |
| Refractive Index | 1.9573(no); 2.1652(ne) @1064nm |
| 1.9721(no); 2.1858(ne) @808nm | |