Nd:GdVO4 Neodymium Doped Gadolinium Orthovanadate Laser Crystals Customized
Nd:GdVO4, is a promising material for diode pumped lasers. Similar to the more well-known Nd:YVO4 crystal, Nd:GdVO4 crystal also exhibits high gain, low threshold, and high absorption coefficients at pumping wavelengths. 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.
Note:
1. This is a customized product.
2. $55 is a deposit, not the final price of the product.
3. The main factors affecting the price: quantity, size, processing index.
4. Please provide crystal processing drawings or crystal size, membranes, quantity, processing index. (Contact us）
5. Crystal customization time: 3~6 weeks.
6. Warranty: 1 year
[Features]
1. Large stimulated emission cross section at laser wavelength.
2. High absorption coefficient and wide bandwidth at pump wavelength.
3. Low dependency on pump wavelength.
4. Good thermal conductivity.
5. Low lasing threshold and high slope efficiency.
6. High laser induced damage threshold.
7. Strongly-polarized laser output.
Material Properties: Comparing Nd:GdVO4 with Nd:YVO4
| Crystal |
Nd:GdVO4 |
Nd:YVO4 |
| Crystal Structure,Space Group |
Tetragonal, I41/amd |
Tetragonal, I41/amd |
| Lattice constants (nm) |
a:0.721 b:0.635 |
a:0.721 b:0.629 |
| Melting temperature(℃) |
1780 |
1825 |
| Thermal expansion @250C, x10-6/0C |
a |
1.7 |
a |
4.43 |
| b |
7.3 |
b |
11.4 |
| Specific heat @250C, cal/mol·K |
32.6 |
24.6 |
| dn / dT, x10-6/0C |
4.7 |
2.7 |
Information Regarding Neodymium Laser Host Crystals
| Crystal |
Nd:YVO4 |
Nd:GdVO4 |
Nd:YAG |
| Laser wavelengths |
1064.3nm, 1342.0 nm |
1062.9 nm, 1340 nm |
1064.2 nm, 1338.2 nm |
Emission bandwidth
(linewidth at 1064 nm) |
0.8nm |
|
0.45nm |
Effectivelasercross section
(emission cross section at 1064 nm) |
15.6 x 10^-19 cm² |
7.6 x 10^-19 cm² |
6.5 x 10^-19 cm² |
| Polarization |
Parallel to c-axis |
Parallel to c-axis |
unpolarized |
Radioactive lifetime (microseconds)
at 1% Nd doping |
~100µs |
~95µs |
230µs |
| Pump wavelength |
808.5nm |
808.4nm |
807.5nm |
| Thermal conductivity, W/m/K |
5.1 |
11.7 |
14 |
| Peak pump absorption at 1% doping |
~ 41 cm^-1 |
~ 57 cm^-1 |
|
Nd:GdVO4 specifications:
| Prameter |
Value |
| Doping |
0.1%~3% |
| Doping concentration tolerance |
±0.05%(atm%<1%),±0.1%(atm%≥1%) |
| Orientation |
A-cut/C-cut +/-0.5deg. |
| Dimension Tolerance |
±0.1nm |
| Flatness |
λ/10 @ 632.8nm |
| Wavefront distortion |
λ/6@ 632.8nm |
| Surface Quality |
10/5 per MIL-O-13830B |
| Parallelism |
10″ |
| Perpendicularity |
10′ |
| Bevel/Chamfer |
<0.1mm@45deg. |
| Chips |
<0.1mm |
| Clear Aperture |
>95% |
| Coating |
AR/HR/PR coating upon customer’s request |
| Damage Threshold |
750MW/CM² at 1064nm, TEM00, 10ns, 10Hz |
| Quality Warranty Period |
One year under proper use |
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