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Nd:YVO4
YVO4 has become popular host crystal for diode pumping among the current commercial laser crystals because of its high gain
Classification:
Detailed introduction
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 diodes.
PRODUCT FEATURE
Five times larger absorption efficient over a wide pumping bandwidth around 808nm
Much lower dependency on pumping wavelength and a strong tendency to the single mode output
As large as three times larger stimulated emission cross-section at the lasing wavelength of 1064nm
Lower lasing threshold and higher slope efficiency
Linearly polarized emission as the uniaxial crystal with large birefringence
Absorption Spectrum
Emission Spectrum
Specifications | |
Concentration | 0.1at~4.0at% |
Orientation | A-cut or C-cut |
Dimension | Diameter:1.5~25mm,Length:1.5~25mm(Customized available) |
Dimension Tolerance | Φ:+0/-0.04mm,L:+0.5/-0mm |
Perpendicularity | ≤5′ |
Parallelism | ≤10" |
Chamfer | 0.15±0.05mm |
Clear Aperture | >95% |
Surface Quality | 10/5(MIL-PRF-13830B) |
Barrel | Fine Ground |
Flatness | ≤λ/10@632.8nm |
Wavefront Distortion | ≤λ/8 per inch@632.8nm |
Coating | AR coating:R<0.15%@1064nm,R<0.5%@808nm,R<0.15%@532nm |
PR coating:R=(10~90)%±2%@1064nm | |
HR coating:R>99.8%@1064nm,R>99.8%@808nm | |
Damage Threshold | ≥750MW/cm2 |
Optical Properties | |
Wavelength | 914nm,1064nm,1342nm |
Emission Cross Section | 25×10-19cm2@1064nm |
Physical and Chemical Properties | |
Crystal Structure | Zircon Tetragonal |
Chemical Formula | Nd3+:YVO4 |
Lattice Parameter | a=b=7.1193Å, c=6.2892Å |
Melting Point | 1825°C |
Density | 4.22g/cm2 |
Mohs Hardness | 4~5 |
Thermal optical coefficient | dn0/dT=8.5×10-6/K,dne/dT=2.9×10-6/K |
Refractive Index | no=1.9573; ne=2.1652@1064nm |
no=1.9721; ne=2.1858@808nm | |
no=2.0210; ne=2.2560@532nm |
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