Nd:YVO4 –Diode Pumped Solid-state Lasers
Product Description
Nd:YVO4 can produce powerful and stable IR, green, blue lasers with the design of Nd:YVO4 and frequency doubling crystals. For the applications in which more compact design and the single-longitudinal-mode output are needed, Nd:YVO4 shows its particular advantages over other commonly used laser crystals.
Advantages Of Nd:YVO4
● Low lasing threshold and high slope efficiency
● Large stimulated emission cross-section at lasing wavelength
● High absorption over a wide pumping wavelength bandwidth
● Optically uniaxial and large birefringence emits polarized laser
● Low dependency on pumping wavelength and tend to single mode output
Basic Properties
| Atomic Density | ~1.37x1020 atoms/cm2 |
| Crystal Structure | Zircon Tetragonal, space group D4h, a=b=7.118, c=6.293 |
| Density | 4.22 g/cm2 |
| Mohs Hardness | Glass-like, 4.6 ~ 5 |
| Thermal Expansion Coefficient |
αa=4.43x10-6/K,αc=11.37x10-6/K |
| Melting Point | 1810 ± 25℃ |
| Lasing Wavelengths | 914nm, 1064 nm, 1342 nm |
| Thermal Optical Coefficient |
dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K |
| Stimulated Emission Cross-Section |
25.0x10-19 cm2 , @1064 nm |
| Fluorescent Lifetime |
90 ms (about 50 ms for 2 atm% Nd doped) @ 808 nm |
| Absorption Coefficient | 31.4 cm-1 @ 808 nm |
| Absorption Length | 0.32 mm @ 808 nm |
| Intrinsic Loss | Less 0.1% cm-1 , @1064 nm |
| Gain Bandwidth | 0.96 nm (257 GHz) @ 1064 nm |
| Polarized Laser Emission |
parallel to optic axis (c-axis) |
| Diode Pumped Optical to Optical Efficiency |
> 60% |
| Sellmeier Equation (for pure YVO4 crystals) | no2(λ) =3.77834+0.069736/(λ2 - 0.04724) - 0.0108133λ2 |
| no2(λ) =4.59905+0.110534/(λ2 - 0.04813) - 0.0122676λ2 |
Technical Parameters
| Nd dopant concentration | 0.2 ~ 3 atm% |
| Dopant tolerance | within 10% of concentration |
| Length | 0.02 ~ 20mm |
| Coating specification | AR @ 1064nm, R< 0.1% & HT @ 808nm, T>95% |
| HR @ 1064nm, R>99.8% & HT@ 808nm, T>9% | |
| HR @ 1064nm, R>99.8%, HR @ 532 nm, R>99% & HT @ 808 nm, T>95% | |
| Orientation | a-cut crystalline direction (+/-5℃) |
| Dimensional tolerance | +/-0.1mm(typical), High precision +/-0.005mm can be available upon request. |
| Wavefront distortion | <λ/8 at 633nm |
| Surface qualit | Better than 20/10 Scratch/Dig per MIL-O-1380A |
| Parallelism | < 10 arc seconds |
Write your message here and send it to us
