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Nd:YVO4

 

Description:

Nd:YVO4 is one of the most efficient laser host crystals for all-solid-state laser diode pumped lasers. Its large stimulated emission cross-section at lasing wavelength, high absorption coefficient and wide absorption bandwidth at pump wavelength, high laser induced damage threshold as well as good physical, optical and mechanical properties make it an excellent crystal for high power, stable and cost-effective diode pumped solid-state lasers.

 

Physical Properties:

Atomic Density1.26x1020 atoms/cm³ (Nd 1.0%)         
Crystal StructureZircon Tetragonal, space group D4h-I4/amd
a=b=7.1193, c=6.2892
Density4.22g/cm3
mols4-5 (Glass-like)
Thermal Expansivity (300K)aa=4.43x10-6/K
ac=11.37x10-6/K
Thermal Conductivity Coefficient (300K)//C:0.0523W/cm/K
⊥C:0.0510W/cm/K

 

Optical Properties:

Laser Wave                                          1064nm, 1342nm ,914nm
Thermo-Optical Coeffecient (300K)dno/dT=8.5x 10-6/K
dne/dT=2.9x 10-6/K
Sellmeier Equationno²=3.77834+0.069736/(l2-0.04724)-0.0108133.l²
(for pure YVO4 crystals)ne²=4.59905+0.110534/(l2-0.04813)-0.0122676.l²
Excited Emission Section25x 10-19cm² @1064nm
Fluorescence Lifetime90ms
Absorption Coefficient31.4cm-1 @810nm
Extrinsic Loss0.02cm-1 @1064nm
Gain Bandwidth0.96nm @1064nm
Polarized Light Shootpolarization; parallel to optic axis(c-axis)
LD Pump Light Throughput Efficiency>60%

 

Specifications:

Nd: Dopant Level                    0.1 atm% - 3.0 atm%
Wavefront Distortion< λ/8 @ 633 nm
Orientation±0.5deg.
Dimensional Tolerance±0.1mm
Surface quality10/5 Scratch/Dig per MIL-O-13830B
Flatnessλ/10 @ 633 nm
Clear Aperture> Central 90%
Parallelism< 10 arc sec
Intrinsic Loss< 0.1% cm-1

Note: Other specifications of Nd:YVO4 crystals and coatings are also available upon request.