Typical Properties of YVO4 crystal

Crystal Structure

Tetragonal: a = b = 7.12 Å c = 6.29 Å

Density

4.22 g/cm3

Atomic density

~ 1.3x1020atoms/cm2

Mohs hardness

~ 5

Thermal Expansion

a= 4.43 x10-6/ K  ;  c= 11.37 x10-6/K

Thermal Conductivity

C: 5.23 W/m/k  ; ^C axis = 5.10 W/m/k

Nd3+ concentration

0,1 – 4,0 at.%

Lazing Wavelengths

914 nm, 1064 nm, 1342nm

Axial characteristics

Uniaxial ; n0 = na = nb ; ne = nc

Refractive Indices

o= 1.9573 e= 2.1652 at @ 1064 nm
o= 1.9721 e= 2.1858 at @ 808 nm

o= 2.0210  e= 2.2560at @ 532 nm

Sellmeier Equation (  in m )

o2 = 3.77834 + 0.069736/(2 –0.04724) – 0.0108133 2
e2 = 4.59905 + 0.110534/(2 –0.04813) – 0.0122676 2

Thermal Optic Coefficient

da / dt : 8.5x10-6/ oC dc / dt : 3.0 x10-6/ oC

Stimulated emission cross-section

25.0x1019cm2 , @nm

Luminescent lifetime

90mS (50mS for 2 atm%Nd)

Absorption coefficient for 1.1 at.% Nd3+

31.4cm-1 @nm

Intrinsic Loss

0.001cm-1 ; @nm

Gain Bandwidth

0.96nm (257GHz); @nm

Polarized Laser Emission

p polarization ; parallel to optical axis (axis c)

Diode Pumped Optical to Optical Efficiency

 > 60 %