Nonlinear LBO Crystal

Nd:YVO4 crystal

Yttrium Vanadate (Nd:YVO4) is one of the most efficient laser host crystal currently existing for diode laser-pumped solid-state lasers.

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Most efficient laser host crystal Nd:YVO4 

 

 

Description
Yttrium Vanadate (Nd:YVO4) is one of the most efficient laser host crystal currently existing for diode laser-pumped solid-state 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 Nd:YVO4 an excellent crystal for high power, stable and cost-effective diode pumped solid-state lasers. Recent developments have shown that Nd:YVO4 can produce powerful and stable IR, green, bule lasers with the design of Nd:YVO4 and frequency doubling crystals.

Main features
Large stimulated emission cross-section at lasing wavelength
High absorption coefficient 

Wide absorption bandwidth at pump wavelength                                                                                                            High laser induced damage threshold                                                                                                                           Good physical, optical and mechanical properties          

Specifications
Value
Nd Conentration
0.1%~3%
Flank Size
1*1~15*15
Long
0.2~20mm
Optical Axis Orientation
a-cut
Dimension Tolerance
Commercial(±0.1mm);High Precision(±0.005mm)
Surface Quality
20/10
Parallelism
<30"
Optical Axis Orientation
+/-0.2°
Chamfer
0.15×45°
Flatness
<λ/8 @633nm
Wavefront Distortion
<λ/8 @633nm
Coating
According to customer request
Physical Properties

Atomic Density
1.26x1020 atoms/cm³ (Nd 1.0%)
Crystal Structure
Zircon Tetragonal, space group D4h-I4/amd 
a=b=7.1193, c=6.2892
Density
4.22g/cm3
Mols
4-5 (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 Equation 
(for pure YVO4 crystals)
no²=3.77834+0.069736/(l2-0.04724)-0.0108133.l²
ne²=4.59905+0.110534/(l2-0.04813)-0.0122676.l²
Excited Emission Section
25x 10-19cm² @1064nm
Fluorescence Lifetime
90ms
Absorption Coefficient
31.4cm-1 @810nm
Extrinsic Loss
0.02cm-1 @1064nm
Gain Bandwidth
0.96nm @1064nm
Polarized Light Shoot
polarization; parallel to optic axis(c-axis)
LD Pump Light Throughput Efficiency
>60%

                                                                                      


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