Neodymium-doped yttrium vanadate (Nd: YVO4) crystal
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Specifications
| Parameter | Value |
|---|---|
| Nd Dopant | 0.27%、0.3%、0.4%、0.5%、0.7%、1.0%、2.0%、3.0% |
| Width x height | 1x1～16x16mm |
| Length | 0.02～20mm |
| Direction | a-Cleaving（±0.5°) |
| Dimensional Tolerance | +/-0.1mm |
| Wavefront Distortion | <633nm at λ/8 |
| Technical indicator photopurity | 20/10 |
| Parallelism | < 10″ |
| Surface Figure | <632.8nm at λ/10 |
| Optical Aperture | Central 95% |
| Chamfer | 0.15 ° × 45° ° |
| Coating | 1.AR@1064nm R<0.1% 2.AR@1064nm R< 0.1% & HT@808nm T>95% 3.HR@1064nm R>99.8% & HR@532nm R>99% & HT@808nm T>95% |
| Atomic density | ~1.37x1020 atoms/cm² |
| Crystal Structure | Zircon tetragonal crystal system, space group D4h, a=b=7.12, c=6.29 |
| Density | 4.22gcm³ |
| Mohs Hardness | Glassy, ~5 |
| Coefficient of Thermal Expansion | aa=4.43x10⁻⁶/K, one c=11.37x10⁻⁶/K |
| Thermal Conductivity | ||C：5.23 W/m/K；^C：5.10 W/m/K |
| Laser Wavelength | 914nm、1064nm、1342nm |
| Crystal chamber | Positive uniaxial, no=na=nb ne=nc no=1.9573, ne=2.1652, @ 1064nm no=1.9721, ne=2.1858, @808nm no=2.0210, ne=2.2560, @ 532nm |
| Thermo-optic Coefficient | dna/dT=8.5x10⁻⁶/K, dnc/dT=3.0x10⁻⁶/K |
| Stimulated Emission Cross Section | 25.0x10⁻¹⁹ cm² ，@1064 nm |
| Fluorescence Lifetime | 90 ms (for 2 atm% Nd doping, about 50 ms) @ 808 nm |
| Absorption Coefficient | 31.4cm⁻¹ @ 808 nm |
| Absorption Length | 0.32 cm @ 808 nm |
| Intrinsic loss | Less than 0.1%cm⁻¹, @1064 nm |
| Gain Bandwidth | 0.96 nm（257 GHz）@1064 nm |
| Polarized laser emission | p parallel to optical axis (c axis) |
| Diode-pumped optical-to-optical efficiency | > 60% |
| Sellmeier equation (applicable to pure YVO4 crystal) | no²=3.77834+0.069736/(λ² -0.04724)-0.0108133λ2 no²=4.59905+0.110534/(λ² - 0.04813) - 0.0122676λ2 |
Datasheet
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