Nd-doped YVO4 crystal is an excellent laser crystal for making the diode-pumped solid lasers. The main and greatest advantages of Nd: YVO4 are high absorption coefficient, big stimulated emission cross-section and wide absorption band, the absorption peak is about 808 nm. Because of these advantages, small crystal can be used to make smaller laser device. The another feature of Nd: YVO4crystal is this uniaxial, which makes it emit linearly polarized lights. Combining with frequency-doubled crystal, all-solid-state lasers with green, blue and red wavelength can be realized.
Parameter
| 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 | <λ/8 @633nm |
| Surface Flatness | λ/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 |
| 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 /(W·m-1·K-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 /（10-6·K-1@25°C ） | a = 4.43, c= 11.4 |
| Hardness (Mohs) | 4~5 |
| Laser Wavelength | 1064nm, 1342nm |
| Polarized Laser Emission | πpolarization; 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 μs (about 50 μs 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 | |
| 2.0210(no); 2.2560(ne) @532nm | |
| Absorption Coefficient | 31.4 cm-1 @ 808 nm |
| Absorption Length | 0.32 mm @ 808 nm |
| Gain Bandwidth | 0.96 nm (257 GHz) @ 1064 nm |
- High absorption coefficient
- Large stimulated emission cross-section
- Wide absorption bang
- High damage threshold
- Uniaxial crystal
- Good physical and optical property
Optical Communication
Holography
- Military field
- Medical test
- Materials processing
- Laser printing
More picture
Nd YVO4 Crystal
Size:4*4*20mm
YVO4*0.4%Nd YVO4 Crystal
Size:3*3*(2*8)mm
YVO4*0.4%Nd YVO4 Crystal
Size:3*3*(2*8)mm
Leonid Kulik says
Dear Sirs, could you provide the laser crystals under our request according to the specification below:
It must be three crystals glued together with a coating: the 1st – quartz crystal (SiO2), the 2nd – Neodymium Doped Yttrium Vanadate crystal (Nd:YVO4), and the 3rd – KTP – Potassium Titanil Phosphate crystal (KTiOPO4) . The length of the 1st (quartz crystal) is 0.6 +/-0.1 mm, the length of the 2nd (Nd:YVO4) crystal is 0.7 +/-0.1 mm, and the length of the 3rd KTP crystal is 1.7 +/- 0.1 mm. The required Nd:Doping Level is 2.0 atm %. The common length of this crystal must be 3+/- 0.1 mm, the diameter should be as small as you can do it, i.e. 1 or 2mm. It will be a sample to understand how it will fit to our purpose. For another quality requirements please see specification below:
Dimensional Tolerance ……………………………………………………… +0.1/-0.1mm
Input diod pump …………………………………………………..808nm
Output wavelength…………………………………………………532nm
Coating Type
Incident Surface ……………………………. HR R>99.8% @1064nm
………………………………………………………HT R99% @532nm
Output Surface ……………………………… HR R>99.8% @1064nm
………………………………………………………HT R<5% @532nm
Please give us the response as soon as possible about the quality of your crystal such like surface quality, flatness and so on, and the time you need for fabrication this crystal and last, but not least – the price for such a sample and further the price for a commercial set depending on the amount of a crystals there.