Strongly - polarized laser output. Neodymium doped Gadolinium Vanadate (Nd:GdVO4 Crystals) is an excellent ideal laser host material for the DPSS (Diode pumped Solid State) micro/mini lasers due to its good physical, optical and mechanical properties.
Nd:GdVO4 has the additional advantage over Nd:YVO4 of a much higher thermal conductivity. For CW lasing at 1.06 um and 1.34 um and intracavity doubling with KTP and LBO, the gadolinium vanadate have produced a higher slope efficiency or optical conversion than Nd:YVO4.
Mohs Hardness Glass-like, ~ 5 Refractive Index @1064 no=1.972;ne=2.192 Thermal Conductivity 11.7 W/m/K <110> Thermal Expansion Coefficient aa=1.5x10-6/K, ac=7.3x10-6/K Lasing Wavelength 912.6 nm, 1063.1 nm, 1341.3nm Stimulated Emission Cross Section 7.60x10-19cm2@1064nm Fluorescent Lifetime 95 ms (1 atm% Nd doped)@808nm Intrinsic Loss Less 0.1% cm-1@1064nm Absorption Coefficient 74 cm-1 @ 808nm (1.2%) Linewidth 0.6nm Polarized Emission p parallel to optic axis (c-axis) Diode Pumped Optical to Optical >60% Sellmeier Equation (for pure GdVO4 ne2=4.734369+0.1216149/(λ2 - 0.0523664) - 0.013927λ2
Physical and Optical Properties
Efficiency
crystals, λ in um)
no2=3.8987165+0.05990622/(λ2 - 0.0514395) - 0.011319λ2
Featured
Large stimulated emission cross section at laser where
High absorption coefficient and wide bandwidth at pump the where
Low dependency on pump the where
Good thermal conductivity
Low lasing threshold and high slope efficiency
High laser induced damage threshold
Specifications
|
Nd-dopant |
0.1atm%~ 3.0atm% |
|
Orientation |
A-cut/C-cut +/-0.5deg |
|
Dimensional tolerance |
+/-0.1mm |
|
Wavefront Distortion |
<λ/8@633nm |
|
Surface flatness |
|
|
Parallelism |
<10 arc seconds |
|
Perpendicularity |
<5 arc minutes |
|
Surface quality |
better than 20/10 Scratch/Dig per MIL-O-1380A |
|
Clear aperture |
95% |
|
Chamfer |
0.15x45° |
|
Coating |
AR/HR/PR coating upon customer’s request |
|
Damage threshold |
>700MW/cm2 (coated) |
【 Go Back 】 | 【 Close this window 】