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Zircon Tetragonal Laser Crystals 914nm ND Yvo4 Crystal Invisible Scattering

Categories Laser Crystals
Brand Name: STAR OPTIC
Model Number: Nd:YVO4
Certification: RoHS, ISO9001
Place of Origin: Wuhan, China
MOQ: 1pc
Price: Negotiable
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 50000pcs/Month
Delivery Time: Negotiable
Packaging Details: Safe and dust-free packing
Product Name: Laser Crystal Nd:YVO4
Feature: the most efficient laser host crystal for diode laser pumped solid state lasers
Crystal Class: Positive uniaxial
Diode Pumped Optical to Optical Efficiency: >60%
Nd Dopant Level: 0.1-5.0atm%
Mohs Hardness: 5
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Zircon Tetragonal Laser Crystals 914nm ND Yvo4 Crystal Invisible Scattering

Laser Crystal Nd:YVO4

Overview:

Nd:YVO4 crystal 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.


General Specifications Of Nd:YVO4:

Nd Dopant Level0.1-5.0atm%
ScatteringInvisible, probed with a He-Ne laser
Orientation Tolerance±0.5deg
Dimensional Tolerance±0.1mm
Surface Quality10/5 Scratch and Dig
Clear Aperture>90%
Surface Flatness<λ/10@633nm
Wavefront Distortion<λ/8@633nm
Parallelism<10 arc seconds
End-faces ConfigurationPlano/Plano
Intrinsic Loss< 0.1%cm-1
CoatingAR1064&HT808: R<0.1%@1064nm, R<5%@808nm
HR1064&HT808&HR532: R>99.8%@1064nm, R<5%@808nm, r="">99%@532nm
AR1064: R<0.1%@1064nm

Physical Properties of Nd:YVO4:

Atomic Density~1.37x1020 atoms/cm3
Crystal StructureZircon Tetragonal, space group D4h
a=b=7.12, c=6.29
Density4.22 g/cm3
Mohs HardnessGlass-like, ~5
Thermal Expansion Coefficienta=4.43x10-6/K, c=11.37x10-6/K

Optical Properties of Nd:YVO4 (typically for 1.1 atm% Nd:YVO4, a-cut crystals)

Lasing Wavelengths914nm, 1064nm, 1342nm
Thermal Optical Coefficientdna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K
Stimulated Emission Cross-Section25.0x10-19cm2@1064nm
Fluorescent Lifetime90us @808nm, (50us @808 nm for 2atm% Nd doped)
Absorption Coefficient31.4 cm-1@808nm
Absorption Length0.32 mm @808nm
Intrinsic LossLess than 0.1% cm-1@1064nm
Gain Bandwidth0.96 nm (257 GHz) @1064nm
Polarized Laser Emissionp polarization, Parallel to optic axis (c-axis)
Diode Pumped Optical to Optical Efficiency>60%
Crystal ClassPositive uniaxial, no=na=nb, ne=nc,
no=1.9573, ne=2.1652, @1064nm
no=1.9721, ne=2.1858, @808nm
no=2.0210, ne=2.2560, @532nm
Sellmeier Equation(for pure YVO4 crystals, λ in um)no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2

Laser Properties (Nd:YVO4 VS Nd:YAG):

Laser CrystalNd dopedσατLaPthη
(atm%)(x10-19cm2)(cm-1)(cm-1)(mm)(mW)( %)
Nd:YVO4(a-cut)1.12531.2900.327848.6
272.4500.14
Nd:YVO4(c-cut)1.179.29023145.5
Nd:YAG0.8567.12301.4111538.6


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