Jinan Crystrong Photoelectric Technology Co.,Ltd
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Laser Crystal Nd YVO4 Single Axis Crystal Output Is linearly Polarized
Products Description:
Laser Properties: The Nd:YVO4 crystal has large stimulated emission cross-sections at both 1064nm and 1342nm. The stimulated emission cross-section of an a-axis cut Nd:YVO4 crystal at 1064nm is about 4 times higher than that of the Nd:YAG crystal. Although the lifetime of Nd:YVO4 is about 2.7 times shorter than that of Nd:YAG. Because of its high pump quantum efficiency, the slope efficiency of Nd:YVO4 can be very high if the laser cavity is properly designed. In the following Table lists the major laser properties of Nd:YVO4 in comparison with those of Nd:YAG.
| Laser crystal | Doping(atm%) | σ(x10-19cm2) | a (cm-1) | τ (μs) | La (mm) | Pth(mW) | η s(%) |
| Nd:YVO4(a-cut) | 1.0 2.0 |
25 25 |
31.2 72.4 |
90 50 |
0.32 0.14 |
30 78 |
52 48.6 |
| Nd:YVO4(c-cut) | 1.1 | 7 | 9.2 | 90 | 231 | 45.5 | |
| Nd:YAG | 0.85 | 6 | 7.1 | 230 | 1.41 | 115 | 38.6 |
Note: stimulated emission cross-sections (σ), Absorption Coefficient (α), Fluorescent lifetime (τ),Absorption Length (La),threshold Power (Pth) ,
Pump Quantum Efficiency (ηs).
| Crystals | Size (mm3) | Pump Power | Output (at 1064nm) |
| Nd:YVO4 | 3x3x1 | 850mW | 350mW |
| Nd:YVO4 | 3x3x5 | 15W | 6W |
| Nd:YAG | 3x3x2 | 850mW | 34mW |