Nd:YVO4 - Neodymium Doped Yttrium Orthovanadate
Neodymium doped yttrium vanadate (Nd: YVO4) crystal is a laser crystal with excellent performance, suitable for manufacturing laser diode pumped, especially low to medium power lasers. Compared with Nd: YAG, Nd: YVO4 has higher absorption coefficient and larger stimulated emission cross section for pump light. The combination of Nd: YVO4 crystal pumped by laser diode with high nonlinear coefficient crystals such as LBO, BBO, KTP can achieve good frequency doubling conversion efficiency, and can be made into all solid-state lasers that output near-infrared, green, blue to ultraviolet, and other types.
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Atomic Density
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1.26x1020 atoms/cm3 (Nd1.0%)
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Crystal Structure Cell Parameter
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Zircon Tetragonal, space group D4h-I4/amd
a=b=7.1193Å,c=6.2892Å
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Density
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4.22g/cm3
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Mohs Hardness
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4-5 (Glass-like)
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Thermal Expansion Coefficient（300K）
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αa=4.43x10-6/K
αc=11.37x10-6/K |
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Thermal Conductivity Coefficient（300K）
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∥ C : 0.0523W/cm/K ⊥ C : 0.0510W/cm/K |
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Lasing wavelength
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1064nm，1342nm
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Thermal optical coefficient（300K）
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dno/dT=8.5×10-6/K
dn/dT=2.9×10-6/K
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Stimulated emission cross-section
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25×10-19cm2 @ 1064nm
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Fluorescent lifetime
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90μs(1%)
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Absorption coefficient
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31.4cm-1 @810nm
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Intrinsic loss
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0.02cm-1 @1064nm
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Gain bandwidth
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0.96nm@1064nm
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Polarized laser emission
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polarization; parallel to optical axis (c-axis)
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Diode pumped optical to optical efficiency
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>60%
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Sellmeier equations（λ in μm）
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no2=3.77834+0.069736/(λ2-0.04724)-0.010813λ2
ne2=4.59905+0.110534/(λ2-0.04813)-0.012676λ2
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Attribute
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Commercial
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High Precision
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Optical Axis Orientation
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±0.5°
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±0.1°
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Parallelism
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20"
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10"
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Perpendicularity
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15'
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5'
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Flatness
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λ/4
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λ/10
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Surface Quality
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40-20 scratch and dig
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10-5 scratch and dig
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Dimension Tolerance
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±0.1mm
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±0.005mm
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Ar Coating
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R<0.2%@1550±40nm
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Specified
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