Nd:YVO4 (Neodymium Doped Yttrium Orthovanadate), one of the most efficient crystals for diode pumping lasers especially for medium and low power density. Comparing with Nd:YAG, Nd:YVO4 has higher absorption coefficient to pumping light and larger stimulated-emission cross section. Nd:YVO4, coordinating with LBO, BBO, KTP nonlinear crystals, is able to obtain good frequency doubling making it an excellent crystal for all-solid-state lasers for near infrared, green, blue or ultraviolet ray output.
Basic Properties
|
Point Group
|
D4h
|
|
Mohs
|
4—5 And glass similar
|
|
Density
|
4.22g/cm3
|
|
Thermal Expansion Coefficient
|
αa=4.43×10-6/K αc=11.37×10-6/K
|
|
Thermal Conductivity
|
⊥C: 51mw/cm.k //C: 52.3 mw /cm.k(300k)
|
|
Laser Wavelength
|
1064nm,1342nm
|
|
Thermal Optic Coefficient
|
dna/dT=8.5×10-6/K dnc/dT=3.0×10-6/K
|
|
Stimulated Emission Cross-Section
|
25×10-19cm2 @ 1064nm
|
|
Fluorescent Lifetime
|
90μs(about 50 ms for 2atm%Nd doped)@ 808 nm
|
|
Absorption Coefficient
|
31.4cm-1 @810nm
|
|
Intrinsic Loss
|
0.02cm-1 @1064nm
|
|
Gain Bandwidth
|
0.96nm-1@1064nm
|
|
Polarized Laser Emission
|
π polarization; parallel to the optic axis (C-axis)
|
|
Diode Pumped Optical to Optical Efficiency
|
>60%
|