Neodymium doped Gadolinium Orthovanadate single crystal (Nd:GdVO4 crystal ) is an excellent laser crystal. This crystal is ideal laser host material for the DPSS (Diode pumped Solid State) micro/mini lasers as its good physical, optical and mechanical properties. It has higher slope efficiency than Nd:YAG and better thermal conductivity, higher power output than Nd:YVO4, so it is a good choice to use Nd:GdVO4 for high power output DPSS lasers.
Advantages of Nd:GdVO4 crystal:
Large stimulated emission cross section at laser wavelength
High absorption coefficient and wide bandwidth at pump wavelength
Low dependency on pump wavelength
Good thermal conductivity
Low lasing threshold and high slope efficiency
High laser induced damage threshold
Strongly-polarized laser output
Properties of Nd:GdVO4 crystal:
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)
74cm-1
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%...
