Product Description
Nd:YLF features an extremely large fluorescence line width, low thermal lensing effect and natural polarization. It is widely used in mode-locked lasers, continuous lasers and material processing fields. As an alternative medium to Nd:YAG, Nd:YLF is used to work in the near-infrared region, generating lasers at wavelengths of 1047nm and 1053nm. It can be applied in linearly polarized resonators, mode-locked lasers, diode-pumped Nd:YLF lasers and Ti:sapphire chirped pulse amplifiers.
Main features:
Natural polarization；
Extra-wide fluorescent line width；
High ultraviolet transparency；
The thermal lensing effect is smaller than that of YAG crystals；
Continuous lasers have a relatively low excitation light threshold；
Suitable for medium repetition frequency, high average power Q-switched mode-locking operation；
Effective single-mode operation, high power output and low beam divergence angle；
Typical Application：
Mode-locked laser；
Ultra-short pulse laser；
Material processing, welding, cutting；
Ti:sapphire chirped pulse amplifier；
Diode-pumped Nd:YLF laser；
Linearly polarized resonator Q-switching and frequency doubling；
Continuous-wave pulsed operation at 1047nm and 1053nm；
Material Properties
| Crystal Structure | Tetragonal |
| Melting Point | 825℃ |
| Moh Hardness | 5 |
| Density | 3.95g/cm3 |
| Thermal Conductivity | 0.06W/cm/K |
| Thermal Expansion Coefficient | [100]方向：13×10-6/K |
| [001]方向：8×10-6/K | |
| Young's Modulus | 7.5×1011dynes cm-2 |
| Tensile Strength | 3.3×108dynes cm-2 |
Technical Parameter
Crystro offers:
| Dopant concentration | Nd:～1.0at% |
| Orientation | [100]or[001] within 5° |
| sizes | Upon request of customer |
| Dimensional tolerances | Diameter:+0.00/-0.05mm,Length:±0.5mm |
| Barrel finish | Ground or polished |
| Parallelism | ≤10′ |
| Perpendicularity | ≤5′ |
| Flatness | ≤λ/10@632.8nm |
| Surface quality | 10-5(MIL-O-138 30B) |
| Chamfer | 0.15±0.05mm |
| Wavefront distortion | ≤0.25λ/25mm @632.8nm |
| AR coating reflectivity | ≤0.25%@1047/1053nm |
| Laser damage threshold of film layer | ≥500MW/cm² |
Note: Above parameters for reference only, please contact our sales Rep. for your specific requirement.
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