Nd:YVO4
Neodymium doped Gadolinium Vanadate(Nd: YVO4) has become popular host crystal for diode pumping among the current commercial laser crystals because of its...
Nd:YVO4
Neodymium doped Gadolinium Vanadate(Nd: YVO4) has become popular host crystal for diode pumping among the current commercial laser crystals because of its high gain, low threshold and high absorption coefficients at pumping wavelengths, which result from the excellent fit of the neodymium dopant in the crystal lattice. This is mainly for Nd:YVO4’s absorption and emission features surpassing Nd:YAG Pumped by laser dio...
- ManufacturerOST Photonics
- CategoryLaser Crystal
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
Nd:YVO4 Laser Crystal
Advantages
1 ) High absorption over a wide pumping wavelength bandwidth
2 ) Larger stimulated emission cross-section at the lasing wavelength of 1064nm
3 ) Lower lasing threshold and higher slope efficiency
4 ) As a uniaxial crystal with a large birefringence, the emission is only a linearly polarized
Specifications
| Material | Nd:YVO4 |
| Dopant Concentration | 0.1 – 3at% |
| Orientation | A-cut or C-cut |
| Dimension Tolerance | W(+/-0.1)×H(+/-0.1)×L(+/-0.5)mm |
| Wavefront Distortion | <λ/8 @633nm |
| Chamfer | <0.15×45° |
| Clear Aperture | >90% |
| Flatness | λ/10@ 633 nm |
| Chips | <0.1mm |
| Scratch/Dig | 10-5@MIL-0-13830A |
| Perpendicularity | ≤5 arc minutes |
| Parallelism | <20 arc seconds |
| Damage Threshold | 1GW/cm2@1064nm 10ns 10HZ |
| Anti-Reflection Coating | R<0.2%@1064nm |
Properties
| Crystal Structure | Tetragonal System |
| Point Group | D4h |
| Density | 4.22 g/cm2 |
| Mohs Hardness | 4-5 |
| Thermal Expansion Coefficient | αa=4.43×10-6/K αc=11.37×10-6/K |
| Thermal Conductivity Coefficient | ⊥C: 51mw/cm.k //C: 52.3 mw /cm.k(300k) |
| Laser Wavelength | 1064nm, 1342nm |
| Pump Wavelength | 808nm |
| Stimulated Emission Cross-Section | 25×10-19cm2 @ 1064nm |
| Fluorescent Lifetime | 90μs(1% Nd doping) |
| Absorption Coefficient | 31.4cm-1 @810nm |
| Intrinsic Loss | 0.02cm-1 @1064nm |
| Gain Bandwidth | 0.96nm@1064nm |
| Polarized Laser Emission | p polarization; parallel to optic axis(c-axis) |
Other Laser Crystal Materials
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