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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:


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%
OrientationA-cut or C-cut  
DimensionDiameter:1.5~25mm,Length:1.5~25mm(Customized available)
Dimension ToleranceΦ:+0/-0.04mm,L:+0.5/-0mm
Perpendicularity≤5′
Parallelism≤10"
Chamfer0.15±0.05mm
Clear Aperture>95%
Surface Quality10/5(MIL-PRF-13830B)   
BarrelFine Ground
Flatness≤λ/10@632.8nm
Wavefront Distortion≤λ/8 per inch@632.8nm
CoatingAR 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

Wavelength914nm,1064nm,1342nm
Emission Cross Section25×10-19cm2@1064nm

 

Physical and Chemical Properties
Crystal StructureZircon Tetragonal
Chemical FormulaNd3+:YVO4
Lattice Parametera=b=7.1193Å, c=6.2892Å
Melting Point1825°C
Density4.22g/cm2
Mohs Hardness4~5
Thermal optical coefficientdn0/dT=8.5×10-6/K,dne/dT=2.9×10-6/K
Refractive Indexno=1.9573; ne=2.1652@1064nm
no=1.9721; ne=2.1858@808nm
no=2.0210; ne=2.2560@532nm

Keywords:

YVO4

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