Related link: Nd: GdVO4 Crystal Components
Nd: GdVO4 Crystal Basic Properties:
Crystal structure |
Tetragona |
Space Group |
I41/amd |
Lattice paramete |
a=0.721nm, b=0.635nm |
Lasing Transition |
4F3/2 - 4I11/2 |
Lasing wavelength |
1062.9nm |
Emission Cross Section (at 1064nm) |
7.6x10-19 cm2 |
Absorption Cross Section (at 808nm) |
4.9x10-19 cm2 |
Absorption Coefficient (at 808nm) |
74/cm |
Index of Refractivity (at 1064nm) |
n0=1.972, ne=2.192 |
Thermal Conductivity (<110>) |
11.7W/(mxK) |
Density |
5.47g/cm3 |
Nd Dopent level (atomic) |
0.1%, 0.2%, 0.3%, 0.5%, 0.7%, 1.0%... |
Information Regarding Neodymium Laser Host Crystals:
Crystal |
Nd:YVO4 |
Nd:GdVO4 |
Nd:YAG |
Laser wavelengths |
1064.3nm, 1342.0nm |
1062.9nm, 1340nm |
1064.2nm, 1338.2nm |
Emission bandwidth(linewidth at 1064nm) |
0.8nm |
0.45nm |
|
Effective laser cross section (emission cross section@1064nm) |
15.6x10-19cm-2 |
7.6x10-19cm-2 |
6.5x10-10cm-2 |
Polarization |
Parallel to c-axis |
Parallel to c-axis |
unpolarized |
Radioactive lifetime at 1% Nd doping |
~ 100μs |
~ 95μs |
230μs |
Pump wavelength |
808.5nm |
808.4nm |
807.5nm |
Peak pump absorption at 1% doping |
~ 41 cm-1 |
~ 57 cm-1 |
|
Thermal conductivity |
5.1 W/nK |
11.7(Ref.7) W/nK |
14 W/nK |
Doping concentration range |
0.1-3.0% |
0.1-3.0% |
0.1-2.0% |
Nd:GdVO4 Index of Refraction:
Wavelength |
500nm |
630nm |
850nm |
1064nm |
1300nm |
1400nm |
1550nm |
no |
2.04880 |
2.01685 |
1.99490 |
1.98535 |
1.97889 |
1.97683 |
1.97410 |
ne |
2.31219 |
2.25431 |
2.21482 |
2.19813 |
2.18742 |
2.18419 |
2.18009 |
Nd:GdVO4 Demonstrated Performance in Diode Pumped Laser Systems:
Laser Operation |
Output Wavelength |
Frequency Doubler |
Slope Efficiency |
Max.Optical Conversion Efficiency |
CW |
1.06µm |
none |
42.9% |
38.1% |
CW |
1.34µm |
none |
40.2% |
n/a |
CW |
0.53µm |
KTP |
n/a |
21% |
CW |
0.67µm |
LBO |
n/a |
2.8% |
Q-switched |
1.06µm |
none |
31.6% |
n/a |
Q-switched |
0.53µm |
KTP |
n/a |
25% |