Nd YVO4 Laser Crystals High Absorption Coefficient Big Stimulated Emission Cross Section
Brand Name:CRYLINK
Certification:Iso9001
Model Number:CRYLINK-Nd YVO4 Laser Crystal
Minimum Order Quantity:1 Pieces
Delivery Time:3-4 weeks
Payment Terms:TT
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Shanghai Shanghai China
Address:
No.200, Zgaoxian Road, Jiading Zone, Shanghai, China
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Product Details
Nd-doped YVO4 crystal is an excellent laser crystal for making the
diode-pumped solid lasers. The main and greatest advantages of Nd:
YVO4 are high absorption coefficient, big stimulated emission
cross-section and wide absorption band, the absorption peak is
about 808 nm. Because of these advantages, small crystal can be
used to make smaller laser device. The another feature of Nd:
YVO4crystal is this uniaxial, which makes it emit linearly
polarized lights. Combining with frequency-doubled crystal,
all-solid-state lasers with green, blue and red wavelength can be
realized.
Parameter
Material and Specifications
| Materials | Nd: YVO4 |
| Concentration Tolerance (atm%) | 0.5%, 1.1%, 2.0%, 3.0% |
| Orientation | A-cut or C-cut |
| Parallelism | 20 |
| Perpendicularity | 5 |
| Surface Quality | 10/5 Scratch/Dig per MIL-O-13830 B |
| Wavefront Distortion | </8 @633nm |
| Surface Flatness | /10@ 633 nm |
| Clear Aperture | >90% |
| Chamfer | ≤0.2mm@450 |
| Dimension Tolerance | (W±0.1mm)x(H±0.1mm)x(L+0.2/-0.1mm) (L<2.5mm) |
| (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm) | |
| Angle Tolerance | ≤0.5° |
| Damage Threshold[GW/cm2 ] | >1 for 1064nm, TEM00, 10ns, 10Hz (AR-coated) |
| Coatings | HR@1064nm+532nm+HT@808nm/AR@1064nm+532nm |
Physical and Chemical Properties
| Crystal Structure | Zircon Tetragonal, space group D4h-I4/amd |
| Lattice Constants | a=b=7.12, c=6.29 |
| Density | 4.22g/cm3 |
| Melting Point | 1825 |
| Thermal Conductivity /(Wm-1K-1@25°C) | 5.2 |
| Thermal Optical Coefficient(dn/dT) | dno/dT=8.5×10-6/K; dne/dT=2.9×10-6/K |
| Thermal Expansion /(10-6K-1@25°C ) | a = 4.43, c= 11.4 |
| Hardness (Mohs) | 4~5 |
Optical and Spectral Properties
| Laser Wavelength | 1064nm, 1342nm |
| Polarized Laser Emission | polarization; parallel to optic axis (c-axis) |
| Pump Wavelength | 808nm |
| Intrinsic Loss | 0.02cm-1 @1064nm |
| Diode Pumped Optical to Optical Efficiency | >60% |
| Emission Cross Section | 25×10-19cm2@1064nm |
| Fluorescence Lifetime | 90 s (about 50 s for 2 atm% Nd doped) @ 808 nm |
| Gain Bandwidth | 0.96nm @1064nm |
| Refractive Index | 1.9573(no); 2.1652(ne) @1064nm |
| 1.9721(no); 2.1858(ne) @808nm | |
Nd YVO4 Laser Crystals High Absorption Coefficient Big Stimulated Emission Cross Section
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